Multi-physics methodology for phase change due to rapidly depressurised two-phase flows
نویسندگان
چکیده
Zonal modeling is a common technique for the numerical certification of fire-extinguishing systems, however it not valid to simulate complex physical phenomena that occurs near agent injection. We present multi-scale method accurate generation inflow boundary conditions zonal based on description phase change rapidly depressurised mist fire suppression system. The includes characterization injection from atomization evaporation and mixing. methodology use high fidelity multiphase conservative level set LES nozzle develop an empirical model primary breakup. Secondly, low particle-based with unsteady RANS used parametric studies. This approach requires affordable computational effort. tested in system consisting pressurised extinguishing (Novec-1230) injected into ambient through produces agent. accuracy developed compared experimental data.
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ژورنال
عنوان ژورنال: International Journal of Multiphase Flow
سال: 2021
ISSN: ['1879-3533', '0301-9322']
DOI: https://doi.org/10.1016/j.ijmultiphaseflow.2021.103788