whistling through a pipe

 User Name Remember Me Password
 Register Blogs Members List Search Today's Posts Mark Forums Read

 April 21, 2008, 19:21 whistling through a pipe #1 cfd-student Guest   Posts: n/a Sponsored Links Hi guys I wanna whistle through a pipe and analyse the acoustical behaviour. What sort of boundary conditions i would need to do that. How much pressure do you recommend I should apply at the inlet. Can you please direct me to any reading material on the subject. Thank you

 April 22, 2008, 12:33 Re: whistling through a pipe #2 Tim Guest   Posts: n/a Interesting question. You suck a lot more powerfully than you blow. I think that humans can draw about 5" of mercury vacuum, and blow about 1/2 psi pressure. Haven't blown on an anemometer lately, but a velociy boundary condition on the order of 1 m/s seems about right also.

 April 22, 2008, 16:15 Re: whistling through a pipe #3 cfd-student Guest   Posts: n/a Thank you tim. I was thinking I should have pressure inlet at the inlet and specify a value for pressure. I am totally confused. How do I whistle through pipe guys??

 April 23, 2008, 07:14 Re: whistling through a pipe #4 Tim Guest   Posts: n/a If you have a need for pressure inlet, but do not know the pressure, you could run a test case where you specify the velocity and calculate the pressure drop.

 April 23, 2008, 10:53 Re: whistling through a pipe #5 cfd-student Guest   Posts: n/a true. Thanks tim

 Thread Tools Display Modes Linear Mode

 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 OffTrackbacks are On Pingbacks are On Refbacks are On Forum Rules

 Similar Threads Thread Thread Starter Forum Replies Last Post [DesignModeler] DesignModeler Pipe within pipe shields ANSYS Meshing & Geometry 12 April 30, 2015 03:58 cfd-student CFX 6 April 24, 2008 05:30 Abhi Main CFD Forum 2 July 9, 2002 09:08 Abhi Main CFD Forum 12 July 8, 2002 09:11 ram Main CFD Forum 5 June 17, 2000 21:31