• Publications
  • Influence
Effect of dilatation on scalar dissipation in turbulent premixed flames
The scalar dissipation rate signifies the local mixing rate and thus plays a vital role in the modeling of reaction rate in turbulent flames. The local mixing rate is influenced by the turbulence,Expand
  • 171
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Scalar Dissipation Rate Modeling and its Validation
A simple algebraic model for the Favre averaged scalar dissipation rate, c, in high Damkohler number premixed flames is obtained from its transport equation by balancing the leading order terms.Expand
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Interaction of turbulence and scalar fields in premixed flames
The interaction of turbulence with progress variable, c, field in a premixed flame is studied. This interaction is characterized by the correlation c,ieijc,j¯, where the overbar denotes anExpand
  • 118
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Strained flamelets for turbulent premixed flames, I: Formulation and planar flame results
Abstract A strained flamelet model is proposed for turbulent premixed flames using scalar dissipation rate as a parameter. The scalar dissipation rate of reaction progress variable is a suitableExpand
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Strained flamelets for turbulent premixed flames II: Laboratory flame results
Abstract The predictive ability of strained flamelets model for turbulent premixed flames is assessed using Reynolds Averaged Navier Stokes (RANS) calculations of laboratory flames covering a wideExpand
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Influence of the Damköhler number on turbulence-scalar interaction in premixed flames. I. Physical insight
Scalar dissipation rate is a central quantity in turbulent flame modeling as it is closely related to the reaction rate. It is well known that turbulence-scalar interaction plays a vital role inExpand
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Turbulent Premixed Flames
1. Fundamentals and challenges K. N. C. Bray and N. Swaminathan 2. Modelling D. Bradley, L. Vervisch, V. Moureau, P. Domingo, D. Veynante, N. Chakraborty, M. Champion, A. Mura, N. Swaminathan and R.Expand
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  • PDF
A tomographic PIV resolution study based on homogeneous isotropic turbulence DNS data
In order to accurately assess measurement resolution and measurement uncertainty in DPIV and TPIV measurements, a series of simulations were conducted based on the flow field from a homogeneousExpand
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Finite rate chemistry and presumed PDF models for premixed turbulent combustion
The sensitivity of the prediction of mean reaction rates in turbulent premixed flames to presumed PDF shape is studied. Three different presumed PDF shapes are considered: (i) a beta function PDF,Expand
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Geometry and interaction of structures in homogeneous isotropic turbulence
Abstract A strategy to extract turbulence structures from direct numerical simulation (DNS) data is described along with a systematic analysis of geometry and spatial distribution of the educedExpand
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