laminar or tubulent of gas flow in tube with different diameters? -- CFD Online Discussion Forums

December 20, 2010, 21:17	laminar or tubulent of gas flow in tube with different diameters?	#1
Jiuan Member Dongzi Wei Join Date: Mar 2009 Posts: 33 Rep Power: 17	Dear Guys, The tube is composed of two co-axial parts, one is with small diameter and the other is with large diameter. For a certain flow rate of gas, the Reynolds number in the small-diameter part is larger than the critical reynolds number, but the Reynolds number in the large-diameter part is smaller than the critical reynolds number. I did not which model I should use, laminar or turbulent model? Thanks!

Posting Rules
You may not post new threads You may not post replies You may not post attachments You may not edit your posts BB code is On Smilies are On [IMG] code is On HTML code is Off Trackbacks are Off Pingbacks are On Refbacks are On Forum Rules

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Boundary Layer of Laminar Flow over a Flat Plate	Blasius_Pohlhausen_Crocco	Main CFD Forum	12	September 30, 2013 17:35
Gas flow in vortex tube - LES and grid resolution	bernarde	Main CFD Forum	1	March 26, 2009 10:50
Flow around the microscale tube in CFX4.4	hsinluen	CFX	2	December 10, 2003 20:53
Transient natural gas flow description	Leila	FLUENT	0	November 29, 2003 16:06
Laminar gas flow at low Re in tubes	Glenn Price	Main CFD Forum	0	October 8, 1998 12:21

All times are GMT -4. The time now is 06:50.