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

how to calculate reynolds number

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   June 27, 2019, 09:22
Default how to calculate reynolds number
  #1
New Member
 
far
Join Date: Jun 2019
Posts: 8
Rep Power: 6
farshads83 is on a distinguished road
how can i calculate reynolds number in cube with three holes?
do i need hydrolic diameter for reynolds number? if yes, are holes taking account for calculating?
for expmple a cube with 300*300mm and three holes with 2mm radiuos how can i calculate?
farshads83 is offline   Reply With Quote

Old   June 28, 2019, 09:16
Default
  #2
Super Moderator
 
flotus1's Avatar
 
Alex
Join Date: Jun 2012
Location: Germany
Posts: 3,406
Rep Power: 48
flotus1 has a spectacular aura aboutflotus1 has a spectacular aura about
Based on your description, your flow has at least 2 representative length scales: the cube length 300mm and the hole diameter 4mm. Both length scales are valid for calculating a Reynolds number.
So the question should probably be: what do you need a Reynolds number for?
It is just a number, writing either one on a piece of paper does not change your simulation result
flotus1 is offline   Reply With Quote

Reply

Tags
reynolds, reynolds numbe

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
decomposePar no field transfert Jeanp OpenFOAM Pre-Processing 3 June 18, 2022 12:01
parallel run OpenFoam Srinath Reddy OpenFOAM Running, Solving & CFD 13 February 27, 2019 09:15
[Other] Equal decomposition of cylindrical fluid domain Sean95 OpenFOAM Meshing & Mesh Conversion 3 February 12, 2019 03:34
Calculate Reynold's number in a 2d simulation mbaldini Main CFD Forum 1 January 26, 2018 14:15
CFX Solver Reynolds Number haider760 CFX 2 March 4, 2012 22:05


All times are GMT -4. The time now is 05:59.