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Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Numerical modelling of flow over a rigid wavy surface by LES
AbstractA flow field over a rigid wavy surface is numerically generated. The general concept of the large eddy simulation that captures the large scale flow structure is utilized. A coordinate transformation scheme is developed to transform any wavy surface to a flat surface. The numerical computations are carried out in the ω - ψ domain. The subgrid scales are resolved by utilizing a Smagorinsky subgrid model. The fourth-order central difference and the third-order upwinding schemes are used for the diffusive and convective terms, respectively. Adams-Bashforth and Dufort-Frankel schemes are used to solve the equations of the fluid motion. The computational scheme ensured a non-penetration and a no-slip boundary condition. The velocity profile, and the separation and reattachment locations are found to agree well with an experimental investigation.
Numerical modelling of flow over a rigid wavy surface by LES
AbstractA flow field over a rigid wavy surface is numerically generated. The general concept of the large eddy simulation that captures the large scale flow structure is utilized. A coordinate transformation scheme is developed to transform any wavy surface to a flat surface. The numerical computations are carried out in the ω - ψ domain. The subgrid scales are resolved by utilizing a Smagorinsky subgrid model. The fourth-order central difference and the third-order upwinding schemes are used for the diffusive and convective terms, respectively. Adams-Bashforth and Dufort-Frankel schemes are used to solve the equations of the fluid motion. The computational scheme ensured a non-penetration and a no-slip boundary condition. The velocity profile, and the separation and reattachment locations are found to agree well with an experimental investigation.
Numerical modelling of flow over a rigid wavy surface by LES
Liu, Zhendong (Autor:in) / Kareem, Ahsan (Autor:in) / Yu, Dahai (Autor:in)
Journal of Wind Engineering and Industrial Aerodynamics ; 46-47 ; 245-254
01.01.1993
10 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Numerical modelling of flow over a rigid wavy surface by LES
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