CFD Online Logo CFD Online URL
Home > Forums > Software User Forums > ANSYS > CFX

CFX for Aero-acoustic modeling

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

LinkBack Thread Tools Search this Thread Display Modes
Old   December 4, 2006, 06:23
Default CFX for Aero-acoustic modeling
Posts: n/a

I have one question about the aero-acoustic capability in CFX.

Could I use CFX to simulate the far-field noise in CFX and represent the SPL vs. Frequency Plot in the CFX-post?

Thanks. Saturn
  Reply With Quote

Old   December 4, 2006, 07:56
Default Re: CFX for Aero-acoustic modeling
Posts: n/a
Yes or no. In order to calculate far-field noise accurately, you need a very fine mesh (to cover whole frequency range and reduce numerical dissipation) from near-field upto far-field. Generally, this requirement results in a mesh which is too big to solve directly in any CFD code unless you have thousands CPUs available. Therefore, a more practical approach is to get aerodynamic information at near-field using CFD code and calcualte noise propagation to far-field using other code, like SYSNOISE. Next release of CFX will have a simple macro to calculate blade tone at far-field. Fluent does have some aero-acoustic modules to estimate broadband noise. By the way, there is no FFT capability in CFX-Post.
  Reply With Quote


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

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

Similar Threads
Thread Thread Starter Forum Replies Last Post
Acoustic modeling Chris Honest FLUENT 1 May 31, 2017 14:21
modeling particle transport in ansys cfx 10.0 siavash CFX 9 November 23, 2010 21:21
Seeking help on modeling acoustic cavitation Jun Cai FLUENT 2 September 18, 2007 21:58
PhD using CFX Rui CFX 9 May 28, 2007 05:59
CFX for turbulence modeling Sujit CFX 1 August 13, 2003 06:20

All times are GMT -4. The time now is 00:40.