请问floworks里Total Pressure和Environment Pressure的区别

cjmgdyqgcyjs

我现在想把进气口压力设为5个大气压,不知应该设为Total Pressure还是Environment Pressure?
! y" B* v$ @3 ~# w! i* O帮助里的这句看不懂
' ^  w" k8 D9 c2 t9 V; q( @The Environment Pressure condition is interpreted by COSMOSFloWorks as a total pressure for incoming flows and as a static pressure for outgoing flows. If in the course of calculation a vortex crosses an opening with the Environment pressure condition specified at it, this pressure considered as the total pressure at the part of opening through which the flow enters the model and as the static pressure at the part of opening through which the flow leaves the model.  Additionally, you can specify fluid temperature (and concentration for multiple fluids), turbulence, and boundary layer parameters. These settings are used to define a fluid entering the model at the opening.
谁能解释一下Static Pressure, Total Pressure, Environment Pressure三者区别就更好了

csl01514218

进口压力时最好把对着大气的设置为进口总压101325pa,不要设置为环境压力否则会出现旋流

csl01514218

应该都设置成environment pressure，对于入口被解释成全压，出口被解释成静压。

csl01514218

http://www.3dportal.cn/discuz/vi ... p;page=1#pid3995900
对着大气压(对着外界大气)的开口边界条件的设定?

csl01514218

应该都设置成environment pressure，对于入口被解释成全压，出口被解释成静压?
& Q7 E  B  h: u, |这个该怎么理解？对着外界大气，就应该设置为环境大气压？

sracing

静压，static pressure 是大量无规则分子碰撞壁面的宏观表现。
动压， dynamic pressure  公式是P=1/2*ρ*V*V  是一定程度上反映了气体的动能
. G& ]; ^: Y) d7 ?6 {. ~# Ptotal pressure ，总压=静压+动压
4 l+ Y7 u% O* R% o置于Environment Pressure，floworks解释的很清楚，The Environment Pressure condition is interpreted by COSMOSFloWorks as a total pressure for incoming flows and as a static pressure for outgoing flows.
至于为什么是这样，我就不知道了。