CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > FLUENT

Jet in Supersonic Crossflow

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

Reply
 
LinkBack Thread Tools Display Modes
Old   October 16, 2014, 08:40
Default Jet in Supersonic Crossflow
  #1
New Member
 
Join Date: Oct 2014
Posts: 2
Rep Power: 0
choozr is on a distinguished road
Hi everyone,

Currently I am doing a project on a lateral jet injection in supersonic cross flow. A plate has a small jet orifice that would inject Sonic air into the freestream.

I am simulating a condition that was experimentally done by Dowdy and Newton.

Plate Dimension
Length : 457.2 mm
Width = 444.5 mm

Jet Diameter = 2.54mm at 177.8mm from the front of the plate.

The conditions are
Freestream:
M = 2.61
Pressure = 6729.0844 Pa
Total Pressure = 136365.925 Pa
Temperature = 132.8 K
Total Temperature = 313.71 K

Jet:
M = 1
pressure = 1093075.292 Pa
Total Pressure = 2069114.475 Pa
Temperature = 247.067 K
Total Temperature = 296.48 K

I am currently doing a 2D simulation to find out the turbulence intensity to be used and the turbulent length scale before proceeding to modelling this in 3D.

For the turbulence intensity it is usually 0.4 of the boundary layer height as given in Fluent Guide, however, i do not know if i should use the full length of the plate 457.2mm for the boundary layer or should i use the length from the front to the jet orifice 177.8mm.

Also, would it be advisable to use an Implicit or Explicit method?

thanks a lot
zherui
choozr is offline   Reply With Quote

Old   October 19, 2014, 11:35
Default
  #2
New Member
 
Join Date: Oct 2014
Posts: 2
Rep Power: 0
choozr is on a distinguished road
Help please??
choozr is offline   Reply With Quote

Reply

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
Supersonic helium jet with sonicFoam Intrepid OpenFOAM Pre-Processing 4 February 26, 2014 10:40
Jet in Supersonic Crossflow, controlling mass flow rate ChrisA OpenFOAM Running, Solving & CFD 3 November 13, 2012 19:20
Slot jet in crossflow Sammy Main CFD Forum 2 September 16, 2009 00:55
Supersonic Jet Flows Danny Tan FLUENT 0 November 30, 2001 22:01
Turbulence model for supersonic jet Danny Tandra Main CFD Forum 3 August 24, 2001 04:10


All times are GMT -4. The time now is 01:28.