Turbulent flow numerical simulation method based on partial Reynolds stress model
The invention relates to a turbulent flow numerical simulation method based on a partial Reynolds stress model, and the method comprises the steps: S1, building a Reynolds normal stress transport equation, introducing an omega scale equation into the Reynolds normal stress transport equation, and co...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention relates to a turbulent flow numerical simulation method based on a partial Reynolds stress model, and the method comprises the steps: S1, building a Reynolds normal stress transport equation, introducing an omega scale equation into the Reynolds normal stress transport equation, and coupling the omega scale equation with the Reynolds normal stress transport equation to form a four-equation partial Reynolds stress model; s2, acquiring a Reynolds average Navier-Stokes equation set, and coupling the Reynolds average Navier-Stokes equation set with the four-equation partial Reynolds stress model to obtain a coupled equation set; s3, constructing grid data of a turbulent flow field to be simulated, and setting boundary conditions and initial conditions of the turbulent flow field; and S4, carrying out numerical solution on the coupling equation set based on the grid data to obtain a numerical simulation result of turbulent flow. The method has the advantages of few equations, low calculation cost, go |
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