CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > OpenFOAM Running, Solving & CFD

Problems with calculating Gust equivalent mean wind speed

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

Reply
 
LinkBack Thread Tools Display Modes
Old   January 23, 2010, 03:51
Question Problems with calculating Gust equivalent mean wind speed
  #1
New Member
 
Alice
Join Date: Nov 2009
Posts: 16
Rep Power: 7
Alicelin is on a distinguished road
Hi everyone,

I've run turbFoam for a 2D problem and got the values of U for every time step. I've also calculated the normalised mean wind speed for every time step. Now I want to calculate the gust equivalent mean wind speed (GEM) for which I have to first find out the turbulence intensity, so I need to calculate the difference of the values of U in every time step against the normalised mean wind speed in the last time step, square the difference and sum them up and divided by the number of time steps. As I'm new to OpenFOAM and not familiar with C++, I just know I have to write a loop to sum up the things but I don't know what exactly I have to write Or is there any function like fieldAverage that can generate the standard deviation??

Can anyone help me?

Many thanks!

Alice
Alicelin 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
Problems with finding normalized mean wind speed Alicelin OpenFOAM Running, Solving & CFD 7 January 18, 2010 04:51
Problems in calculating the fluid traction on the current structure frame in 3D models fw407 OpenFOAM Running, Solving & CFD 0 August 6, 2008 12:04
Problems calculating field gh with interFoam cricke OpenFOAM Running, Solving & CFD 0 December 10, 2007 08:17
problems in high speed external flow jon william FLUENT 2 January 14, 2007 07:37
High speed flow problems Sawa FLUENT 3 January 14, 2003 02:10


All times are GMT -4. The time now is 01:55.