CFD Online Logo CFD Online URL
Home > Forums > STAR-CCM+

non-relfective BC for Hydro-acoustics

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

LinkBack Thread Tools Display Modes
Old   February 13, 2014, 19:32
Default non-relfective BC for Hydro-acoustics
New Member
Hogeon Kim
Join Date: Feb 2014
Posts: 1
Rep Power: 0
hgmania is on a distinguished road
Hi all,

I'd like to compute hydro-acoustics induced by hydrofoil or cylinder.

STAR-CCM+ has non-reflective boundary condition as "Free Stream" in ideal gas.

However, as you know, STAR-CCM+ doesn't have any non-reflective boundary condition in compressible flow of water.

When I compute hydro-acoustic(compressible flow), I only could use "Velocity-Inlet" and "Pressure-Outlet" which could reflect the acoustic pressure wave.

I use IAPWS equation of state.

Please let me know how to treat for Nonreflecting BC

Best Regards
Hogeon Kim
hgmania is offline   Reply With Quote

Old   February 14, 2014, 17:01
Senior Member
Join Date: Nov 2010
Location: USA
Posts: 943
Rep Power: 14
me3840 is on a distinguished road
Unfortunately there are no non-reflective BCs for liquids in STAR-CCM+. You will have to use a source near the boundaries of the domain to damp out the acoustic sources, or just ensure that your boundaries are very far from your object under study.
me3840 is offline   Reply With Quote


Thread Tools
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 On
Pingbacks are On
Refbacks are On

Similar Threads
Thread Thread Starter Forum Replies Last Post
Acoustics Ab90 ANSYS 0 July 8, 2013 09:05
Acoustics in OpenFOAM Alhasan OpenFOAM 0 March 29, 2013 16:34
Acoustics modelling Itsme FLUENT 0 June 20, 2012 06:13
urgent!!! surface dpdt values in acoustics samad87 FLUENT 0 August 31, 2009 23:53
Acoustics in Fluent Nurul Murad FLUENT 0 April 1, 2004 22:11

All times are GMT -4. The time now is 05:25.