DEVELOPMENT OF A SUITE OF VERIFICATION TESTS FOR THE CFD FIRE MODEL FIREFOAM

Several benchmark cases are propelled to perform the verification and validation (V&V) of FireFOAM, a LES solver based on OpenFOAM. The Lamb-Oseen vortex with co-flow is used to verify several temporal and spatial schemes used in FireFOAM. The Taylor-Green vortex is implemented to verify the conservation of kinetic energy and enstrophy growth of FireFOAM. The Smagorinsky and one-equation turbulence models are validated by simulating the case of an isotropic decaying turbulence. Numerical solution of kinetic energy decay and energy spectrum are compared with the experimental data of Comte-Bellot and Corrsin (CBC). Several combinations of boundary conditions (BCs) are verified by studying the case of Lamb-Oseen vortex with co-flow and the case of a hot bubble with buoyancy. Several problems with BCs in FireFOAM are identified and corresponding reasons are analyzed. The Eddy-dissipation combustion model is evaluated in the McCaffrey’s pool fire case. The classical -5/3 slope for the temperature rise and -1/3 slope for the velocity decay are observed in the plume zone