# Areodynamic torque of butterfly valve

 Register Blogs Members List Search Today's Posts Mark Forums Read

 September 30, 2008, 12:52 Areodynamic torque of butterfly valve #1 J.Szary Guest   Posts: n/a Hi, I'd like to calculate areodynamic torque of my butterfly valve. I've got only 3 datas: dimension of valve, pressure (1/3 atm) and i know that the air is releasing to the atmosphere. Can anyone help me and describe step by step what should I do? (starting with CFX-Pre) Regards!

 September 30, 2008, 19:07 Re: Areodynamic torque of butterfly valve #2 Glenn Horrocks Guest   Posts: n/a Hi, Step 1 - Do the tutorials in CFX. There is even a flow in a butterfly tutorial problem so you might find that one particularly useful. Step 2 - Do the analysis based on what you learned in the tutorials. Step 3 - When you have more specific questions/comments about the simulation then raise a topic on the forum. Glenn Horrocks

 October 1, 2008, 09:53 Re: Areodynamic torque of butterfly valve #3 J.Szary Guest   Posts: n/a I've done a static simulation, but I'd like to simulate rotating disc. How can I initiate it? There is no option for cylindrical coords. I've red your post about making mesh diaplacement transformation, but I'dont know how exacly do it.

 October 2, 2008, 18:14 Re: Areodynamic torque of butterfly valve #4 Glenn Horrocks Guest   Posts: n/a Hi, You want to move the butterfly in a transient simulation? You are the third person I have recommended to try the mesh deformation tutorial from the CFX-Tutorial Manual this morning. Glenn Horrocks

 October 9, 2008, 16:50 Re: Areodynamic torque of butterfly valve #5 J.Szary Guest   Posts: n/a How can I calculate the areodynamic torque?

 October 9, 2008, 18:52 Re: Areodynamic torque of butterfly valve #6 Glenn Horrocks Guest   Posts: n/a Hi, Using the CEL functions torque_x, torque_y and torque_z. Glenn Horrocks

 October 10, 2008, 12:05 Re: Areodynamic torque of butterfly valve #7 J.Szary Guest   Posts: n/a Thanks a lot for your patience. I'd like to simulate a rotating valve (normally and rapidly rotated) and investigate a torque for this condisions . I tried mesh deformation, but the negative elemets has appeared. Maybe there is a better solutions for this problem? Regards!

 October 12, 2008, 17:54 Re: Areodynamic torque of butterfly valve #8 Glenn Horrocks Guest   Posts: n/a Hi, Put the valve is a rotating frame of reference and connect to the rest of the domain with a GGI. Glenn Horrocks

 October 12, 2008, 19:01 Re: Areodynamic torque of butterfly valve #9 J.Szary Guest   Posts: n/a There is a problem. I can't put solid valve in rotating frame (there is only stationary option). And how can I apply BS on my symmetry when I've already interface condision on it. Regards!

 October 13, 2008, 17:51 Re: Areodynamic torque of butterfly valve #10 Glenn Horrocks Guest   Posts: n/a Hi, Are you trying to do a CHT simulation with moving mesh or RFR? Why do you need the do CHT (conjugate heat transfer)? I am not sure if this combination is supported - better talk to the support office. Glenn Horrocks

 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 siw ANSYS Meshing & Geometry 13 November 27, 2012 13:07 uorinopuot CFX 16 February 25, 2011 06:40 euzinho FLUENT 0 May 28, 2010 08:58 J.Szary FLUENT 1 September 5, 2008 17:28 C. K. Main CFD Forum 1 April 2, 2006 23:30

All times are GMT -4. The time now is 12:14.