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Finite Rate Chemistry not convergence for Hypersonic Flow |
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October 13, 2021, 03:12 |
Finite Rate Chemistry not convergence for Hypersonic Flow
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DuXB
Join Date: Aug 2021
Posts: 4
Rep Power: 5 |
The general solver and model settings I'm using are:
• Fluent 2021 R2 • Density-Based Solver, Steady-State • Energy Equation On • Two-Temperature Model • k-w SST Turbulence Model • Discrete Ordinate Radiation Model • Species Transport, Volumetric Reactions, air-2species-nitrogen, Finite-Rate/NO TCL • Pressure far Inlet,pressure Outlet BCs, Wall BCs • Boundary Turbulence Specification: I = 0.05%, Turbulent Viscosity Ratio = 1.0 • Calculating in Absolute Pressure (0 Pa Operating Pressure) • AUSM Gradient Method • All equations first order • Solution Steering - Hypersonic, FMG Initialization • Courant Number:0.1-1-5-10; When not open species reactions modle,it convergenced;after open reactions modle,it not convergence and "Divergence detected in AMG solver: TWOTE-eq Error at host: floating point exception". If you have some tutorials or experiences, please help me solve this problem,thank you. |
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fluent, hypersonic, species reactions |
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