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

How to generate a turbulent inflow for wind turbine at inlet

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

Reply
 
LinkBack Thread Tools Display Modes
Old   June 30, 2009, 12:17
Default How to generate a turbulent inflow for wind turbine at inlet
  #1
New Member
 
Yang Zhang
Join Date: Jun 2009
Posts: 2
Rep Power: 0
rizhang is on a distinguished road
Hello Guys:

I am right now doing a project about Wind Turbine (WT). As we konw the wind turbine is usually located in the region where the wind is strong fluctuated (turbulence).

Therefore, I need to simulate this phenomen which i should generate a turbulent inflow (without the boundary layer, that will be much more complicated) at inlet boundary.

Anyone knows how to generate the turbulent inflow?

Thanks a lot

yang
rizhang is offline   Reply With Quote

Old   June 30, 2009, 16:21
Default
  #2
Senior Member
 
ckleanth's Avatar
 
George
Join Date: Mar 2009
Location: Birmingham, UK
Posts: 257
Rep Power: 8
ckleanth is on a distinguished road
question is how you want to model it, are you considering to model a wind farm or optimize a single wind turbine... the aproach is quite different as surely you must realize...

in my view if its a wind farm you're trying to model, calculating turbulence for the inlet makes little sense you might as well use the 10% intensity if the speed is quite high

if its a single wind turbine optimization ( or blade optimization), decide which turbulence model you will/have to use and look in the manual/textbooks how to calculate the coefficients.
__________________
Top 4 tips
1. Knowledge is everything and Ignorance is dangerous.
2. Understand your limitations and try to eliminate them.
3. Get yerself a bike and hoon the chuffer. You will soon learn why dogs like to hang their heads out the car window.
4. Please before asking any questions on how to run simulations in CFX, go though all the tutorials
ckleanth 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
CFX application to radial inflow gas turbine Chetan Mistry CFX 5 June 2, 2007 13:13
radial inflow turbine rotor periodicity problem Nanda FLUENT 1 July 17, 2006 14:52
radial inflow turbine rotor periodicity problem Nanda FLUENT 0 July 11, 2006 20:35
turbulent inlet generation ricklee Main CFD Forum 0 July 2, 2006 11:46
How to set the inflow conditions of turbulent BL? CFDer Main CFD Forum 2 March 8, 2006 09:05


All times are GMT -4. The time now is 19:37.