Re Number -- CFD Online Discussion Forums

February 23, 2006, 02:50	Re Number	#1
mAx Guest Posts: n/a	Hi, I am a little beat confused with Re Number. I have an inlet pipe with a D diameter. This pipe is connected with a valve, in which moves a piston. Now my question. Should I evaluate my Re number with inlet pipe (eg. with D diameter), or should I take into account the piston opening? In the last case, Re number is fully dependant of piston opening, and describe much more the flow characteristics. Any Advice? Thanks a lot.

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