舱门送风/管道回风舱段间通风边界的模拟

The Simulation of Inter Module Ventilation Boundary of Port Outlet and Pipe Return Vent Mode

为了验证舱门送风/管道回风舱段间通风边界模拟的可行性,研究出口边界、舱内通风和舱段间通风流量对舱内流场的影响,分析了舱门送风/管道回风舱段间通风的特点及相应的模拟边界形式,并采用数值模拟的办法比较了舱段间通风和采用模拟边界后两种状态下舱内热状态的差别。结果表明,当舱段间通风边界不在舱内通风换热主要发生区域时,舱内环境参数在舱段间通风及采用模拟边界两种状态下差别不大,同时当舱段间通风量小于7 m3/min时,改变舱段间通风流量对模拟边界准确性影响不大,这说明模拟舱门送风/管道回风舱段间通风边界可行。

In order to validate the feasibility of intermodule ventilation boundary of port outlet and pipe return vent,and analyze the influence of outlet and inner ventilation,and intermodule ventilation flux on flow-field of cabin,the corresponding simulating boundary form was presented according to the individual characteristic.After that,comparisons of cabin thermal environments in intermodule ventilation state and with simulated inter-module ventilation boundary were carried out by CFD method.The results showed that： the difference of cabin thermal environments between intermodule ventilation state and with simulated inter-module ventilation boundary was small when intermodule ventilation boundary was not near inner ventilation and heat exchange zone and inter-module ventilation flux was below 7m^3/min.