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You are here : eLibrary : IAHR World Congress Proceedings : 34th Congress - Brisbane (2011) : THEME 7: Hydroinformatics : A novel iles/vof solver for the simulation of turbulent free surface flows
A novel iles/vof solver for the simulation of turbulent free surface flows
Author : Peter D M Brady
A new Implicit Large Eddy Simulation Computational Fluid Dynamics algorithm for the simulation of turbulent flows in the presence of a free surface was developed and validated. The unsteady solver computes the motion of the free surface and surrounding fluid with sufficient accuracy yet without the exorbitant requirements of a Direct Numerical Simulation. The validation study was the simulation of the flow around a right circular cylinder that pierced a free surface. The Reynolds number investigated was 27x103, with a corresponding Froude number, based on the cylinder diameter, of 0.75. In clear contrast to a recently published LES simulation, the shape of the free surface was correctly simulated while a spectral analysis indicated, somewhat surprisingly, that the turbulent cascade was being correctly simulated beyond the grid scale, which is a confirmation that the ILES solver is computing the subgrid-scale turbulence.
File Size : 1,026,107 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 34th Congress - Brisbane (2011)
Article : THEME 7: Hydroinformatics
Date Published : 01/07/2011
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