Dr Umair Ahmed Professor Nilanjan Chakraborty
| Analysis of the evolution of the Surface Density Function during premixed V-shaped flame-wall interaction in a turbulent channel flow at Reτ = 395 | 2025 |
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Vishnu Mohan Dr Umair Ahmed Professor Nilanjan Chakraborty
| Distributions of wall heat flux and wall shear stress and their interrelation during head-on quenching of premixed flames within turbulent boundary layers | 2025 |
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Dr Sanjeev Ghai Dr Umair Ahmed Professor Nilanjan Chakraborty
| Effects of wall temperature on scalar and turbulence statistics during premixed flame-wall interaction within turbulent boundary layers | 2025 |
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Vishnu Mohan Freddie Young Dr Umair Ahmed Professor Nilanjan Chakraborty
| Influence of equivalence ratio on the statistics of the invariants of velocity gradient tensor and flow topologies in turbulent premixed lean H2-air flames | 2025 |
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Freddie Young Dr Umair Ahmed Professor Nilanjan Chakraborty
| Influence of preferential diffusion on the distribution of species in lean H2-air laminar premixed flames at different equivalence ratios | 2025 |
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Dr Liyuan Liu Dr Umair Ahmed Professor Nilanjan Chakraborty
| A Comprehensive Evaluation of Turbulence Models for Predicting Heat Transfer in Turbulent Channel Flow Across Various Prandtl Number Regimes | 2024 |
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Dr Hazem Awad Dr Khalil Abo Amsha Dr Umair Ahmed Professor Nilanjan Chakraborty
| An Assessment of the Validity of Damköhler’s Hypotheses for Different Choices of Reaction Progress Variable in Homogenous Mixture Moderate or Intense Low-Oxygen Dilution (MILD) Combustion | 2024 |
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Dr Umair Ahmed Dr Sanjeev Ghai Professor Nilanjan Chakraborty
| Assessment of Laws of the Wall During Flame–Wall Interaction of Premixed Flames Within Turbulent Boundary Layers | 2024 |
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Dr Umair Ahmed Dr Sanjeev Ghai Professor Nilanjan Chakraborty
| Direct Numerical Simulation Analysis of the Closure of Turbulent Scalar Flux during Flame–Wall Interaction of Premixed Flames within Turbulent Boundary Layers | 2024 |
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Dr Umair Ahmed Professor Nilanjan Chakraborty Dr Markus Klein
| Effects of laminar burning velocity to friction velocity ratio on turbulent premixed flame-wall interaction within turbulent boundary layers | 2024 |
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Gulcan Ozel Erol Dr Umair Ahmed Professor Nilanjan Chakraborty
| Evolution of Displacement Speed Statistics during Head-On Flame-Wall Interaction within Turbulent Boundary Layers | 2024 |
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Professor Nilanjan Chakraborty Harry Dunn Dr Umair Ahmed
| Evolution of Flame Displacement Speed Within Flame Front in Different Regimes of Premixed Turbulent Combustion | 2024 |
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Peter Brearley Dr Umair Ahmed Professor Nilanjan Chakraborty
| Implications of using scalar forcing to sustain reactant mixture stratification in Direct Numerical Simulations of turbulent combustion | 2024 |
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Dr Sanjeev Ghai Dr Umair Ahmed Professor Nilanjan Chakraborty
| Modelling of the flame surface density transport during flame-wall interaction of premixed flames within turbulent boundary layers | 2024 |
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Dr Khalil Abo-Amsha Dr Hazem Awad Dr Umair Ahmed Professor Nilanjan Chakraborty
| On the Definition of Reaction Progress Variable in Exhaust Gas Recirculation Type Turbulent MILD Combustion of Methane and n-Heptane | 2024 |
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Vishnu Mohan Dr Umair Ahmed Professor Nilanjan Chakraborty
| Proper Orthogonal Decomposition of wall shear stress during head-on flame-wall interaction | 2024 |
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Dr Umair Ahmed Dr Sanjeev Ghai Professor Nilanjan Chakraborty
| Relations between Reynolds stresses and their dissipation rates during premixed flame-wall interaction within turbulent boundary layers | 2024 |
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Dr Sanjeev Ghai Dr Umair Ahmed Professor Nilanjan Chakraborty
| Statistical Behaviour and Modelling of Variances of Reaction Progress Variable and Temperature During Flame-Wall Interaction of Premixed Flames Within Turbulent Boundary Layers | 2024 |
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Dr Hazem Awad Dr Khalil Abo-Amsha Dr Umair Ahmed Professor Nilanjan Chakraborty
| A Direct Numerical Simulation based comparison between conventional and MILD combustion processes of turbulent stratified mixtures | 2023 |
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Dr Hazem Awad Dr Khalil Abo-Amsha Dr Umair Ahmed Professor Nilanjan Chakraborty
| A Direct Numerical Simulation based comparison between Homogenous and Inhomogeneous mixture MILD Combustion Modelling in the context of Reynolds Averaged Navier-Stokes Simulations | 2023 |
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Dr Hazem Awad Dr Khalil Abo-Amsha Dr Umair Ahmed Professor Nilanjan Chakraborty
| A Priori Direct Numerical Simulation assessment of MILD combustion modelling in the context of Large Eddy Simulation | 2023 |
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Dr Hazem Awad Dr Khalil Abo Amsha Dr Umair Ahmed Professor Nilanjan Chakraborty
| A Priori Direct Numerical Simulation Assessment of MILD Combustion Modelling in the Context of Reynolds Averaged Navier–Stokes Simulations | 2023 |
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Arun Varma Dr Umair Ahmed Professor Nilanjan Chakraborty
| Effects of body force on the statistical behaviour and modelling of scalar variance in turbulent premixed flames | 2023 |
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Professor Nilanjan Chakraborty Dr Sanjeev Ghai Dr Umair Ahmed
| Effects of fuel Lewis number on turbulent flow statistics in oblique-wall quenching of premixed V-shaped flames within turbulent channel flows | 2023 |
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Dr Sanjeev Ghai Dr Umair Ahmed Professor Nilanjan Chakraborty
| Effects of Fuel Lewis Number on Wall Heat Transfer During Oblique Flame-Wall Interaction of Premixed Flames Within Turbulent Boundary Layers | 2023 |
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Peter Brearley Dr Umair Ahmed Professor Nilanjan Chakraborty
| Effects of Mixture Distribution on the Structure and Propagation of Turbulent Stratified Slot-Jet Flames | 2023 |
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Gulcan Ozel Erol Dr Umair Ahmed Professor Nilanjan Chakraborty
| Evolution of displacement speed statistics during flame-wall interaction within turbulent boundary layers | 2023 |
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Professor Nilanjan Chakraborty Dr Umair Ahmed
| Evolution of flame displacement speed within flame front in different regimes of turbulent premixed combustion | 2023 |
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Dr Umair Ahmed Dr Sean Malkeson Professor Nilanjan Chakraborty
| Flame self interaction during turbulent boundary layer flashback of hydrogen-rich premixed combustion | 2023 |
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Dr Hazem Awad Dr Umair Ahmed Professor Nilanjan Chakraborty
| Flame self-interactions in MILD combustion of homogeneous and inhomogeneous mixtures | 2023 |
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Dr Khalil Abo-Amsha Dr Umair Ahmed Professor Nilanjan Chakraborty
| Flow topologies during Flame-Wall Interaction of premixed combustion in turbulent boundary layer | 2023 |
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Dr Umair Ahmed Professor Nilanjan Chakraborty Dr Markus Klein
| Influence of flow configuration and thermal wall boundary conditions on turbulence during premixed flame-wall interaction within low Reynolds number boundary layers | 2023 |
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Dr Umair Ahmed Professor Nilanjan Chakraborty Dr Markus Klein
| Influence of the variation in laminar burning velocity to friction velocity ratio on turbulent premixed flame-wall interaction within turbulent boundary layers | 2023 |
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Vishnu Mohan Dr Umair Ahmed Professor Nilanjan Chakraborty
| Proper orthogonal decomposition of wall heat flux for head-on premixed flame wall-interaction across turbulent boundary layers | 2023 |
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Dr Umair Ahmed Dr Sanjeev Ghai Dr Liyuan Liu Professor Nilanjan Chakraborty
| Statistical behaviour and closure of turbulent scalar flux during turbulent premixed flame-wall interaction within turbulent boundary layers | 2023 |
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Dr Sanjeev Ghai Dr Umair Ahmed Professor Nilanjan Chakraborty
| Statistical behaviour of scalar variance transport during flame-wall interaction in turbulent boundary layers | 2023 |
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Arun Varma Dr Umair Ahmed Professor Nilanjan Chakraborty
| Turbulence effects on the statistical behaviour and modelling of flame surface density and the terms of its transport equation in turbulent premixed flames | 2023 |
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Dr Sanjeev Ghai Dr Umair Ahmed Dr Markus Klein Professor Nilanjan Chakraborty
| Turbulent kinetic energy evolution in turbulent boundary layers during head-on interaction of premixed flames with inert walls for different thermal boundary conditions | 2023 |
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Dr Jiawei Lai Dr Umair Ahmed Dr Markus Klein Professor Nilanjan Chakraborty
| A comparison between head-on quenching of stoichiometric methane-air and hydrogen-air premixed flames using Direct Numerical Simulations | 2022 |
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Freddie Young Dr Hazem Awad Dr Khalil Abo Amsha Dr Umair Ahmed Professor Nilanjan Chakraborty et al. | A comparison between statistical behaviours of scalar dissipation rate between homogeneous MILD combustion and premixed turbulent flames | 2022 |
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Peter Brearley Dr Umair Ahmed Professor Nilanjan Chakraborty
| A priori Direct Numerical Simulation analysis of the closure of cross-scalar dissipation rate of reaction progress variable and mixture fraction in turbulent stratified flames | 2022 |
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Professor Nilanjan Chakraborty Dr Umair Ahmed Dr Markus Klein
| Alignment statistics of pressure Hessian with strain rate tensor and reactive scalar gradient in turbulent premixed flames | 2022 |
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Dr Umair Ahmed Dr Jian Fang Professor Nilanjan Chakraborty
| An unstructured Adaptive Mesh Refinement approach for Computational Fluid Dynamics of reacting flows | 2022 |
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Dr Hazem Awad Dr Khalil Abo Amsha Dr Umair Ahmed Dr Markus Klein Professor Nilanjan Chakraborty et al. | Assessment of Damköhler’s hypotheses in the thin reaction zones regime using multi-step chemistry Direct Numerical Simulations of statistically planar turbulent premixed flames | 2022 |
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Professor Nilanjan Chakraborty Anthony Herbert Dr Umair Ahmed Dr Markus Klein
| Assessment of Extrapolation Relations of Displacement Speed for Detailed Chemistry Direct Numerical Simulation Database of Statistically Planar Turbulent Premixed Flames | 2022 |
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Arun Varma Dr Umair Ahmed Professor Nilanjan Chakraborty
| Effects of body forces on the statistics of flame surface density and its evolution in statistically planar turbulent premixed flames | 2022 |
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Arun Varma Dr Umair Ahmed Professor Nilanjan Chakraborty
| Effects of Body Forces on Turbulent Kinetic Energy Transport in Premixed Flames | 2022 |
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Arun Varma Dr Umair Ahmed Professor Nilanjan Chakraborty
| Effects of buoyancy on turbulent scalar flux closure for turbulent premixed flames in the context of Reynolds Averaged Navier–Stokes simulations | 2022 |
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Dr Sanjeev Ghai Dr Umair Ahmed Dr Markus Klein Professor Nilanjan Chakraborty
| Energy integral equation for premixed flame-wall interaction in turbulent boundary layers and its application to turbulent burning velocity and wall flux evaluations | 2022 |
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Dr Sanjeev Ghai Professor Nilanjan Chakraborty Dr Umair Ahmed Dr Markus Klein
| Enstrophy evolution during head-on wall interaction of premixed flames within turbulent boundary layers | 2022 |
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Dr Sanjeev Ghai Dr Umair Ahmed Professor Nilanjan Chakraborty Dr Markus Klein
| Entropy generation during head-on interaction of premixed flames with inert walls within turbulent boundary layers | 2022 |
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Dr Umair Ahmed Professor Nilanjan Chakraborty Dr Markus Klein
| Influence of flow configuration and thermal wall boundary conditions on turbulence during premixed flame-wall interaction within boundary layers. | 2022 |
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Dr Sanjeev Ghai Dr Umair Ahmed Professor Nilanjan Chakraborty
| Performance of wall functions in premixed flame-wall interaction within turbulent boundary layers | 2022 |
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Professor Nilanjan Chakraborty Dr Umair Ahmed Dr Sanjeev Ghai
| Premixed Flame-Wall Interaction and Heat Transfer Characteristics in Turbulent Boundary Layers: Insights based on Direct Numerical Simulations | 2022 |
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Professor Nilanjan Chakraborty Dr Umair Ahmed Dr Markus Klein
| Relations between statistics of three-dimensional flame curvature and its two-dimensional counterpart in turbulent premixed flames | 2022 |
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Peter Brearley Dr Umair Ahmed Professor Nilanjan Chakraborty
| Scalar Forcing Methodology for Direct Numerical Simulations of Turbulent Stratified Mixture Combustion | 2022 |
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Dr Umair Ahmed Dr Sanjeev Ghai Professor Nilanjan Chakraborty Dr Markus Klein
| Scalar statistics in premixed flame-wall interaction within turbulent boundary layers under different flow configurations | 2022 |
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Peter Brearley Dr Umair Ahmed Professor Nilanjan Chakraborty
| Turbulent stratified mixture combustion with numerically forced bimodal mixture inhomogeneity | 2022 |
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Dr Umair Ahmed Dr Jian Fang Professor Nilanjan Chakraborty
| Validation of the HAMISH code: DNS of combustion with Adaptive Mesh Refinement | 2022 |
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Dr Jiawei Lai Dr Umair Ahmed Dr Markus Klein Professor Nilanjan Chakraborty
| A comparison between head-on quenching of turbulent methane-air and hydrogen-air flames using detailed chemistry Direct Numerical Simulations | 2021 |
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Peter Brearley Dr Umair Ahmed Professor Nilanjan Chakraborty
| A-priori Direct Numerical Simulation evaluation of the cross-scalar dissipation rate of reaction progress variable and mixture fraction in turbulent stratified flames | 2021 |
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Dr Umair Ahmed Professor Nilanjan Chakraborty Dr Markus Klein
| Assessment of Bray Moss Libby formulation for premixed flame-wall interaction within turbulent boundary layers: Influence of flow configuration | 2021 |
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Dr Umair Ahmed Professor Nilanjan Chakraborty Dr Markus Klein
| Comparison of flame propagation statistics based on DNS of simple and detailed chemistry. Part 2: Influence of choice of reaction progress variable | 2021 |
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Dr Umair Ahmed Professor Nilanjan Chakraborty Dr Markus Klein
| Comparison of flame propagation statistics extracted from DNS based on simple and detailed chemistry Part 1: Fundamental flame turbulence interaction | 2021 |
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Dr Hazem Awad Dr Umair Ahmed Professor Nilanjan Chakraborty
| Comparison of Surface Density Function (SDF) statistics between MILD and premixed turbulent combustion | 2021 |
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Dr Hazem Awad Dr Khalil Abo Amsha Dr Umair Ahmed Professor Nilanjan Chakraborty
| Comparison of the reactive scalar gradient evolution between homogeneous MILD combustion and premixed turbulent flames | 2021 |
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Arun Varma Dr Umair Ahmed Professor Nilanjan Chakraborty
| Effects of body forces on vorticity and enstrophy evolutions in turbulent premixed flames | 2021 |
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Arun Varma Dr Umair Ahmed Professor Nilanjan Chakraborty
| Effects of buoyancy on turbulent kinetic energy transport in turbulent premixed flames | 2021 |
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Ilias Konstantinou Dr Umair Ahmed Professor Nilanjan Chakraborty
| Effects of Fuel Lewis Number on the Near-wall Dynamics for Statistically Planar Turbulent Premixed Flames Impinging on Inert Cold Walls | 2021 |
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Dr Umair Ahmed Professor Nilanjan Chakraborty Dr Markus Klein
| Effects of Turbulent Boundary Layer on the Near-Wall Flame Dynamics in the Case of Adiabatic Walls | 2021 |
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Arun Varma Dr Umair Ahmed Dr Markus Klein Professor Nilanjan Chakraborty
| Effects of turbulent length scale on the bending effect of turbulent burning velocity in premixed turbulent combustion | 2021 |
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Dr Sean Malkeson Dr Umair Ahmed Professor Nilanjan Chakraborty
| Evolution of Surface Density Function in an open turbulent jet spray flame | 2021 |
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Professor Nilanjan Chakraborty Dr Umair Ahmed Dr Markus Klein
| Evolutions of strain rate and dissipation rate of kinetic energy in turbulent premixed flames | 2021 |
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Dr Umair Ahmed Professor Nilanjan Chakraborty
| Flame self-interactions in an open turbulent jet spray flame | 2021 |
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Gulcan Ozel Erol Dr Umair Ahmed Professor Nilanjan Chakraborty
| Flame self-interactions in globally stoichiometric spherically expanding flames propagating into fuel droplet-mists | 2021 |
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Dr Umair Ahmed Professor Nilanjan Chakraborty Dr Markus Klein
| Influence of thermal wall boundary condition on scalar statistics during flame-wall interaction of premixed combustion in turbulent boundary layers | 2021 |
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Dr Umair Ahmed Professor Nilanjan Chakraborty Dr Markus Klein
| Influence of wall boundary conditions on premixed flame-wall interaction in turbulent boundary layers | 2021 |
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Dr Umair Ahmed Alexander Herbert Professor Nilanjan Chakraborty Dr Markus Klein
| On the validity of Damköhler’s second hypothesis in statistically planar turbulent premixed flames in the thin reaction zones regime | 2021 |
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Dr Umair Ahmed Dr Markus Klein Professor Nilanjan Chakraborty
| Principal strain rate evolution within turbulent premixed flames for different combustion regimes | 2021 |
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Dr Umair Ahmed Professor Nilanjan Chakraborty Dr Markus Klein
| Scalar gradient and strain rate statistics in oblique premixed flame-wall interaction within turbulent channel flows | 2021 |
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Dr Umair Ahmed
| Turbulent length scales and budgets of Reynolds stress-transport for open-channel flows; Friction Reynolds numbers (Reτ ) = 150, 400 & 1020. | 2021 |
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Dr Umair Ahmed Professor Nilanjan Chakraborty Dr Markus Klein
| Applicability of extrapolation relations for curvature and stretch rate dependences of displacement speed for statistically planar turbulent premixed flames | 2020 |
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Dr Sean Malkeson Dr Umair Ahmed Dr Charles Turquand d'Auzay Professor Nilanjan Chakraborty
| Displacement speed statistics in an open turbulent jet spray flame | 2020 |
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Dr Umair Ahmed Professor Nilanjan Chakraborty
| Quantification of the flame structure at multi-scale levels | 2020 |
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Dr Umair Ahmed Professor Nilanjan Chakraborty Dr Markus Klein
| Scaling of Second-Order Structure Functions in Turbulent Premixed Flames in the Flamelet Combustion Regime | 2020 |
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Dr Umair Ahmed Professor Nilanjan Chakraborty
| Surface density function evolution and the influence of strain rates during turbulent boundary layer flashback of hydrogen-rich premixed combustion | 2020 |
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Peter Brearley Dr Umair Ahmed Professor Nilanjan Chakraborty
| The relation between flame surface area and turbulent burning velocity in statistically planar turbulent stratified flames | 2020 |
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Ilias Konstantinou Dr Umair Ahmed Professor Nilanjan Chakraborty
| Influence of fuel Lewis number on flame-wall interaction for impinging turbulent premixed flames | 2019 |
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Dr Umair Ahmed Professor Nilanjan Chakraborty Dr Markus Klein
| Insights into the bending effect in premixed turbulent combustion using the Flame Surface Density transport | 2019 |
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Dr Umair Ahmed Professor Nilanjan Chakraborty
| Mean behaviour of flame displacement speed in boundary layer flashback of hydrogen-rich premixed turbulent combustion | 2019 |
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Ilias Konstantinou Dr Umair Ahmed Dr Markus Klein Professor Nilanjan Chakraborty
| Near-wall behaviour of turbulence in flame-wall interaction of premixed turbulent combustion in boundary layers | 2019 |
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Dr Umair Ahmed Dr Markus Klein Professor Nilanjan Chakraborty
| Oblique flame-wall interaction in premixed turbulent combustion under isothermal and adiabatic wall boundary conditions | 2019 |
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Dr Umair Ahmed Professor Nilanjan Chakraborty Dr Markus Klein
| On the stress-strain alignment in premixed turbulent flames | 2019 |
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Dr Umair Ahmed Professor Nilanjan Chakraborty Dr Markus Klein
| Scalar gradient and strain rate statistics in oblique premixed flame-wall interaction with turbulent boundary layers | 2019 |
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Dr Umair Ahmed Professor Nilanjan Chakraborty
| Statistical behaviour of turbulent kinetic energy transport in boundary layer flashback of hydrogen-rich premixed combustion | 2019 |
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Dr Umair Ahmed Professor Nilanjan Chakraborty
| Statistical behaviour of turbulent kinetic energy transport in boundary layer flashback of hydrogen-rich premixed flames | 2019 |
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Dr Umair Ahmed Professor Nilanjan Chakraborty
| Statistical behaviours of conditioned two-point second-order structure functions in turbulent premixed flames in different combustion regimes | 2019 |
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Dr Charles Turquand d'Auzay Dr Umair Ahmed Professor Nilanjan Chakraborty
| Statistics of progress variable and mixture fraction gradients in an open turbulent jet spray flame | 2019 |
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Dr Umair Ahmed Dr Charles Turquand d'Auzay Professor Nilanjan Chakraborty
| Statistics of reaction progress variable and mixture fraction gradients of a pulverised coal jet flame using Direct Numerical Simulation data | 2019 |
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Ilias Konstantinou Dr Umair Ahmed Professor Nilanjan Chakraborty Dr Markus Klein
| Statistics of turbulence during head-on quenching of premixed turbulent combustion in boundary layers | 2019 |
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Dr Umair Ahmed
| A Posteriori Assessment of Algebraic Scalar Dissipation Models for RANS Simulation of Premixed Turbulent Combustion | 2018 |
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Dr Umair Ahmed
| An energy transport based evolving rheology in high-shear rotor–stator mixers | 2018 |
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Dr Umair Ahmed Jiawei Lai Professor Nilanjan Chakraborty
| Effects of detailed chemistry on multiscale analysis of head-on quenching in premixed turbulent combustion | 2018 |
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Dr Umair Ahmed
| Large-eddy simulation of non-circular jet flow in a pilot-scale inline high-shear static mixer | 2018 |
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Dr Umair Ahmed Professor Nilanjan Chakraborty
| Multiscale analysis of head-on quenching premixed turbulent flames | 2018 |
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Dr Umair Ahmed Professor Nilanjan Chakraborty
| Stress-strain alignment in premixed turbulent combustion | 2018 |
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Dr Umair Ahmed
| An energy transport based evolving rheology | 2017 |
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Dr Umair Ahmed
| Fluctuating loads on a tidal turbine due to velocity shear and turbulence: comparison of CFD with field data | 2017 |
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Dr Umair Ahmed
| The role of pressure Hessian in premixed turbulent combustion | 2017 |
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Dr Umair Ahmed
| Modelling flame turbulence interaction in RANS simulation of premixed turbulent combustion | 2016 |
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Dr Umair Ahmed
| CFD Simulations of a full-scale tidal turbine: Comparison of LES and RANS with field data | 2015 |
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Dr Umair Ahmed
| Large Eddy Simulations to represent a full-scale tidal stream flow and turbine | 2015 |
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Dr Umair Ahmed
| An evolution equation for flame turbulence interaction in premixed turbulent combustion | 2014 |
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Dr Umair Ahmed
| CFD Simulations of a Full-Scale Tidal Stream Turbine: Comparison Between Large-Eddy Simulations and Field Measurements | 2014 |
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Dr Umair Ahmed
| Towards the development of an evolution equation for flame turbulence interaction in premixed turbulent combustion | 2014 |
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