Results 61 to 70 of about 28,275 (194)
AerospaceThe current study investigates the performance of implicit Large Eddy Simulation (iLES) incorporating an unstructured third-order Weighted Essentially Non-Oscillatory (WENO) reconstruction method, alongside conventional Large Eddy Simulation (LES) using ...
Zhuoneng Li, Zeeshan A. Rana
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DNS Dataset of a Thick Symmetric Airfoil at Low Reynolds Number: NACA 0018 with LES Comparison [PDF]
Journal of Applied Fluid MechanicsThis study examines the aerodynamic behavior of the symmetric National Advisory Committee for Aeronautics (NACA) 0018 airfoil at a chord-based Reynolds number of 30,000, utilizing Direct Numerical Simulation (DNS) as the primary tool, supplemented by ...
K. Rogowski, S. Kubacki, J. Michna
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Filtered density functions from direct numerical simulation of a reactive jet in cross-flow
, 2010 Direct numerical simulation (DNS) with multi-step hydrogen-air chemical kinetics is used to investigate the nearfield of a flame stabilized above a reactive jet in cross-flow (JICF). JICF configurations are typically used where rapid mixing is desirable;
Chen, J.H. +4 more
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Differential Diffusion Effects in Numerical Simulations on Smoke Toxicity Evaluation
MATEC Web of Conferences, 2016 With the increasing frequency of fire caused by construction materials, smoke toxicity evaluation plays a key role in related fields. Numerical simulation has become a popular method to predict the toxicity of smoke. A computational study of differential
Pan Longwei +4 more
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Persistence Problem in Two-Dimensional Fluid Turbulence
, 2011 We present a natural framework for studying the persistence problem in two-dimensional fluid turbulence by using the Okubo-Weiss parameter $\Lambda$ to distinguish between vortical and extensional regions.
Mitra, Dhrubaditya +3 more
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Entropy, 2018 A high-order finite difference method was used to simulate the hypersonic flow field over a blunt cone with different height roughness elements. The unsteady flow field induced by pulse disturbances was analyzed and compared with that under continuous ...
Zhenqing Wang +4 more
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A critical comparison of second order closures with direct numerical simulation of homogeneous turbulence [PDF]
Recently, several second order closure models have been proposed for closing the second moment equations, in which the velocity-pressure gradient (and scalar-pressure gradient) tensor and the dissipation rate tensor are two of the most important terms ...
Lumley, John L., Shih, Tsan-Hsing
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A coupled approximate deconvolution and dynamic mixed scale model for large-eddy simulation
, 2007 Large-eddy simulations of incompressible Newtonian fluid flows with approximate deconvolution models based on the van Cittert method are reported. The Legendre spectral element method is used for the spatial discretization to solve the filtered Navier ...
Bouffanais, Roland +3 more
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, 2018 The present paper deals with the problem of improving the efficiency of large scale turbulent flow simulations. The high-fidelity methods for modelling turbulent flows become available for a wider range of applications thanks to the constant growth of ...
Krasnopolsky, Boris
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On coherent structures in the compressible turbulent round jet
, 2018 The presence of two-dimensional coherent structures in the near-field of the round jet has been established by several experimental investigations and direct Navier-Stokes simulations (DNS). Their study has a great importance to improve the prediction of
Minh, Hieu Ha, Reynier, Philippe
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