Icepak在做水冷分析时,入口的静压参数对分析有什么影响?

改变几次静压值发现结果没变!想请问高手这个参数对分析的影响?帮忙解疑!

我也试过,设不设都没影响.

沒有人想過『為什麼』嗎？

煩請#WACOW兄指教一下啦

还没做过水冷分析。。。学习学习

因為流體流動除了本身慣性，另外是靠『壓差』，而不是壓力。如果入口壓力 Shift 了某個值，那麼壓力場就會 Shift 相同的值。不過，由於壓力設定改變，那麼流體的特性就不能與壓力相關。
我也沒在用 Icepak，所以我也不確定我的說法對不對，在用 Icepak 的設定中，這說法成不成立，大家參考看看。

Defining Static Pressure


The static pressure (termed the Supersonic/Initial Gauge Pressure) must be specified if the inlet flow is supersonic or if you plan to initialize the solution based on the pressure inlet boundary conditions. Solution initialization is discussed in Section  22.13.

The Supersonic/Initial Gauge Pressure is ignored by FLUENT whenever the flow is subsonic. If you choose to initialize the flow based on the mass flow inlet conditions, the Supersonic/Initial Gauge Pressure will be used in conjunction with the specified stagnation quantities to compute initial values according to isentropic relations.

Remember that the static pressure value you enter is relative to the operating pressure set in the Operating Conditions panel. Note the comments in Section  6.3.1 regarding hydrostatic pressure.