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oyhm526

铁虫 (小有名气)

[求助] 气体流速计算 已有1人参与

现在已知气体质量流量,入口温度,压力及入口面积,怎么可以求他的流速啊?求好心人解惑!
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pippi6

铁杆木虫 (著名写手)

工程和科学数值计算咨询

【答案】应助回帖

感谢参与,应助指数 +1
气体质量流量 Q=A v rho, 这里 A 入口面积, rho是密度, v 是流速, 状态方程  p= rho R T, 所以
v= Q /(A rho) =  Q RT /(A p)
2楼2014-11-06 09:53:54
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