Influence of Turbulent Inlet Boundary Condition on Large Eddy Simulation Over a Flat Plate Boundary Layer

Wang, Yi1,2; Vita, Giulio1; Fraga, Bruno1; Lyu, Chenghao2; Wang, Jianchun2; Hemida, Hassan1

2022-07-01

10.1080/10618562.2022.2085255

INTERNATIONAL JOURNAL OF COMPUTATIONAL FLUID DYNAMICS   Impact Factor & Quartile

1061-8562

1029-0257

There are different methods for setting the inlet boundary condition (IBC) in large eddy simulation (LES). However, different methods applied in the same simulation result in different results. In this study, the influence of setting the IBC in the LES with the Lund method, the divergence-free synthetic eddies method (DFSEM), and the digital filter method (DFM) on the simulation of the boundary layer over a flat plate was investigated. For the DFM and the DFSEM, the input parameters such as the turbulent length scales with constant values were tested. The results indicated that simulations based on the DFSEM and the DFM with turbulent length scales equal to the boundary layer thickness by a factor of 0.6 were in good agreement with the direct numerical simulation (DNS) results It can be observed that the simulation results of the DFSEM agree better with the DNS data than the other two methods.

Large eddy simulation turbulent inlet boundary condition turbulent length scale

SCI ; EI

English

Others

Mechanics ; Physics

Mechanics ; Physics, Fluids & Plasmas

WOS:000823618900001

TAYLOR & FRANCIS LTD

20222812345608

Atmospheric thermodynamics ; Boundary conditions ; Boundary layer flow ; Boundary layers ; Digital filters ; Numerical methods

Atmospheric Properties:443.1 ; Fluid Flow:631 ; Fluid Flow, General:631.1 ; Thermodynamics:641.1 ; Electric Filters:703.2 ; Mathematics:921 ; Numerical Methods:921.6

Web of Science

1.Univ Birmingham, Sch Civil Engn, Birmingham, W Midlands, England
2.Southern Univ Sci & Technol, Dept Mech & Aerosp Engn, Shenzhen, Peoples R China

Wang, Yi,Vita, Giulio,Fraga, Bruno,et al. Influence of Turbulent Inlet Boundary Condition on Large Eddy Simulation Over a Flat Plate Boundary Layer[J]. INTERNATIONAL JOURNAL OF COMPUTATIONAL FLUID DYNAMICS,2022,36:232-259.

Wang, Yi,Vita, Giulio,Fraga, Bruno,Lyu, Chenghao,Wang, Jianchun,&Hemida, Hassan.(2022).Influence of Turbulent Inlet Boundary Condition on Large Eddy Simulation Over a Flat Plate Boundary Layer.INTERNATIONAL JOURNAL OF COMPUTATIONAL FLUID DYNAMICS,36,232-259.

Wang, Yi,et al."Influence of Turbulent Inlet Boundary Condition on Large Eddy Simulation Over a Flat Plate Boundary Layer".INTERNATIONAL JOURNAL OF COMPUTATIONAL FLUID DYNAMICS 36(2022):232-259.