Search Results - "Durbin, Paul A."

Some Recent Developments in Turbulence Closure Modeling by Durbin, Paul A

“…Turbulence closure models are central to a good deal of applied computational fluid dynamical analysis. Closure modeling endures as a productive area of…”
Get full text

Perspectives on the Phenomenology and Modeling of Boundary Layer Transition by Durbin, Paul A.

“…This article is a perspective review of boundary layer transition. Both orderly and bypass transition are discussed, but with a decided emphasis on bypass…”
Get full text

Representation of Surface Roughness in Hybrid Turbulence Simulations by Varghese, Joel, Durbin, Paul A.

“…The influence of surface roughness on overlying turbulence is represented by a drag layer, with a quadratic drag law. The drag coefficient is considered to be…”
Get full text

Assessment of viscosity models that incorporate lag parameter scaling by Biswas, Rajarshi, Durbin, Paul A.

“…Elliptic blending lag models combine a ‘stress-strain misalignment’ parameter with conventional k−ω or k−ε based linear eddy viscosity models. The lag…”
Get full text

DNS of fully turbulent flow in a LPT passage by Kalitzin, Georgi, Wu, Xiaohua, Durbin, Paul A.

“…This work addresses the pattern of turbulent kinetic energy generated by distortion and the effect of external disturbances on boundary layer transition. This…”
Get full text

Large Eddy Simulation of passive scalar transport in transitional boundary layer and development toward improving models by Bader, Shujaut H., Yin, Zifei, Durbin, Paul A.

“…In this paper, the experiment of flat plate transition under freestream turbulence with heat transfer conducted by Blair (1983) is reproduced using subgrid…”
Get full text

A Hybrid Model for Turbulence and Transition, with a Locally Varying Coefficient by Bader, Shujaut H., Yin, Zifei, Durbin, Paul A.

“…In this paper, a simple method to locally compute the model coefficient C DES in Reddy et al. (Int J Heat Fluid Flow 50:103–113, 2014…”
Get full text

Modeling rotation and curvature effects within scalar eddy viscosity model framework by Arolla, Sunil K., Durbin, Paul A.

“…► We propose a bifurcation based rotation/curvature correction for scalar turbulence closures. ► Equilibrium points predicted by this model in homogeneous…”
Get full text

Passive Scalar Transport Modeling for Hybrid RANS/LES Simulation by Yin, Zifei, Durbin, Paul A.

“…A transport model for hybrid RANS/LES simulation of passive scalars is proposed. It invokes a dynamically computed subgrid Prandtl number. The method is based…”
Get full text

The Effect of wake Turbulence Intensity on Transition in a Compressor Cascade by Wissink, Jan G., Zaki, Tamer A., Rodi, Wolfgang, Durbin, Paul A.

“…Direct numerical simulations of separating flow along a section at midspan of a low-pressure V103 compressor cascade with periodically incoming wakes were…”
Get full text

Continuous Mode Transition in High-speed Boundary-layers by Joo, Jongwook, Durbin, Paul A.

“…Mode interaction is studied via direct numerical simulations of a Mach 4.5 boundary layer with discrete and continuous modes imposed at the inflow. An…”
Get full text

Interaction of discrete and continuous boundary layer modes to cause transition by Durbin, Paul A., Zaki, Tamer A., Liu, Yang

“…The interaction of discrete and continuous Orr–Sommerfeld modes in a boundary layer is studied by computer simulation. The discrete mode is an unstable…”
Get full text

Reflections on roughness modelling in turbulent flow by Durbin, Paul A.

“…The general topic of practical modelling of roughness in turbulent flow is discussed. Double averaging is a useful framework, but most models cannot be…”
Get full text

Mesh stretch effects on convection in flow simulations by Ikeda, Tomoaki, Durbin, Paul A.

“…Staggered grids have been widely used with finite difference approaches for incompressible flow simulation. They retain conservation properties that stabilize…”
Get full text

Development of an elliptic blending lag k−ω model by Biswas, Rajarshi, Durbin, Paul A., Medic, Gorazd

“…•Elliptic blending lag approach is coupled with conventional k-ω RANS model.•A lag parameter allows modification of near-wall eddy viscosity.•Better prediction…”
Get full text

An intermittency model for predicting roughness induced transition by Ge, Xuan, Durbin, Paul A.

“…•A bypass transition model is extended to predict roughness induced transition.•Effective displacement of the wall origin serves as a framework to the…”
Get full text

An adaptive DES model that allows wall-resolved eddy simulation by Yin, Zifei, Durbin, Paul A.

“…•A Detached Eddy Simulation model that mimics dynamic Smagorinsky formulation.•Adaptivity of model allows wall resolved eddy simulation on sufficient…”
Get full text

The effect of cube-roughened walls on the response of rough-to-smooth (RTS) turbulent channel flows by Ismail, Umair, Zaki, Tamer A., Durbin, Paul A.

“…•Direct numerical simulations of cube-roughened rough-to-smooth channel flows are performed.•Non-equilibrium effects persist and the global recovery is slow…”
Get full text

LES of spatially developing turbulent boundary layer over a concave surface by Arolla, Sunil K., Durbin, Paul A.

“…We revisit the problem of a spatially developing turbulent boundary layer over a concave surface. Unlike previous investigations, we simulate the combined…”
Get full text

Mixed mode transition in boundary layers: Helical instability by Bose, Rikhi, Durbin, Paul A

“…Recent (Bose \& Durbin, \textit{Phys. Rev. Fluids}, 1, 073602, 2016) direct numerical simulations (DNS) of adverse- and zero-pressure-gradient boundary layers…”
Get full text