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[ANSYS Meshing] ANSYS Meshing guidance for external aerodynamics of vehicle platoon

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Old   July 30, 2018, 06:49
Exclamation ANSYS Meshing guidance for external aerodynamics of vehicle platoon
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Taha Farid
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Hey Everybody,

I need some guidance in solving a CFD problem.

The main problem is that as soon as I run the calculation in Fluent, the solution diverges after 10-20 iterations. The parameters for the solution in Fluent are as follows:
(1) Model - Realizable k-epsilon with NWF
(2) Boundry Conditions - Inlet velocity with turbulence intensity of 1% and viscosity ratio of 10 %
Outlet pressure with turbulence intensity of 5% and viscosity ratio of 10 %

(3) Courant no = 50 with HYBRID initialization
(4) Solution Method -
(a) scheme - coupled
(b) gradient - least square cell based
(c) pressure - second order
(d) momentum - second order
(e) turbulence kinetic energy - second order
(f) turbulence dissipation rate - second order


Last edited by CFD12; August 2, 2018 at 03:04.
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ansys, external aerodynamics, fluent, mesh, solution_divergence

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