CFD Online Logo CFD Online URL
Home > Forums > Main CFD Forum

DNS for Impinging Jet on a Flat Plate

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

LinkBack Thread Tools Display Modes
Old   December 12, 2004, 04:41
Default DNS for Impinging Jet on a Flat Plate
Chandra Shekhar
Posts: n/a
Hello everybody!!

I am trying to do the DNS simulation for Impingind Jet on Falt Plate. A water Jet (in turbulence zone) is coming out of a circular Nozzle and impinges on a flat plate located at some height. Whole of the system (water jet and the flat plate) is enclosed in a cylindrical cell. So, there is no problem for the boundary condition of the fluid system(water + air) is no-slip B.C.

However, I am not so sure about how to deal with the air-water interface of the Jet. Off course, shape of the Jet varies with time and it is not known to us beforehand. It would be very nice if you people can suggest me something in this regard.

Thank you very much in anticipation!!

-chandra shekhar
  Reply With Quote

Old   December 12, 2004, 14:00
Default Re: DNS for Impinging Jet on a Flat Plate
Junseok Kim
Posts: n/a
take a look at the paper,

K. Yokoi, Feng Xiao, Mechanism of structure formation in circular hydraulic jumps: numerical studies of strongly deformed freesurface shallow flows, Physica D 161 (2002) 202219.
  Reply With Quote

Old   December 14, 2004, 09:04
Default Re: DNS for Impinging Jet on a Flat Plate
Saad bin Mansoor
Posts: n/a
I think that you should use a pressure boundary condition for the air-water interface. The shape of the jet may be evaluated iteratively. You can use body-fitted coordinates so that it is easy to apply the pressure boundary condition and also the computational domain will not change in the transformed coordinates even though the physical domian will change.
  Reply With Quote

Old   January 18, 2010, 06:03
Default Polyflow for impinging jet on a flat plate
New Member
Nguyen Anh Tuan
Join Date: Jan 2010
Posts: 3
Rep Power: 7
natuan74 is on a distinguished road
Hi everybody,

i am using polyflow for simulating the impinging jet of fluid on a flat plate. I have a problem with boundary condition between fluid and air. it is very appreciated, if you, everybody, can help me the problem. Thank you

Nguyen Anh Tuan
natuan74 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
Flow Over a Flat Plate recon9 CFX 1 January 20, 2011 22:09
Calculate Drag force for flat plate vsun FLUENT 0 October 3, 2010 07:56
air jet impingment on a moving flat plate blueman_esf62 FLUENT 0 May 2, 2009 02:40
Modelling a synthetic jet for a 2-d flat plate using gambit gaurav ANSYS Meshing & Geometry 0 May 1, 2009 09:59
air jet impingment on a moving flat plate blueman_esf62 FLUENT 1 April 27, 2009 09:40

All times are GMT -4. The time now is 13:10.