CFD Online Logo CFD Online URL
Home > Forums > Software User Forums > ANSYS > FLUENT

HELP!: swimming pool flow problem

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

LinkBack Thread Tools Search this Thread Display Modes
Old   September 7, 2005, 22:06
Default HELP!: swimming pool flow problem
Posts: n/a
Hi, Im a university student from hames cook university australia. Im doing my final year thesis for CFD modelling using FLUENT in a swimming pool to optimise the algae growth problem.

First I would like to describe my model situation:

1. My model is 8m times 4m 2D geometry which describe a pool

2. There are 3inlets and one outlet

3. I used temperature to represent the mixing (chlorine)which carry with the water from 3 inlets.

4.At the beginning, the temperature of water inlets is set as 300K which represent the higher concentration of chlorine mixing and the initial pool water temperature will be set as 295K which represent the lower concentration of chlorine mixing, this temperature different is used to represent the situation of higher concentration of mixing chlorine in the pool inlet and lower concentration of chlorine inside the pool water for the simulation used.In Fluent simulation, the temperature of pool water which is 295K will be increasing due to the supplied water temperature of 300K is higher than the pool water, and this situation is in unsteady state condition. The temperature of pool water will be in steady state condition when the temperature of pool water is balance with the temperature of pool inlet which is 300K in certain interval. Due to the temperature (which represent chlorine) is carried by the inlet water, and how the water distribute to the pool is depend on the configuration, if the given configuration of mentioned 15 configurations which caused the temperature inside the pool changed faster with the time to reach the steady state condition, that's mean this configuration is more able to provide a better water circulation inside the pool; this also mean that the supply chlorine can be more uniform distribute to everywhere of the pool.

5.I have done this with laminar and turbulence modelling which i want to use them to compare to ensure what kind of flow inside the swimming pool.

6.I found that the laminar model give me the temperature change more faster than turbulence model.

7.In realistic, i think the turbulence model will give me the temperature change more faster than the laminar one.

8.For this situation, I think my turbulence setting might something wrong. I used the default setting for this turbulence model and I only changed the setting in boundary condition for each inlets corresponding from FLUENT documentation.

9. Expert, from your experience, which setting for turbulence model is important? For my problem, do you got any suggestion?

Plesase email me as soon as possible, thanks, my email is

  Reply With Quote

Old   September 8, 2005, 09:29
Default Re: HELP!: swimming pool flow problem
Posts: n/a
Hei man;

If it is ok send me your Geometry so that I can do some simple simulations and check it out the differences.regards...
  Reply With Quote


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
Jet flow problem.. PLZ help URGENT!! Vinayak CFX 1 April 3, 2008 19:02
3D Fluid Flow Convergence problem Emily FLUENT 2 March 21, 2007 23:18
good Cold Flow Results but problem with Hot Flow Rams CFX 2 June 13, 2006 04:30
Periodic flow boundary condition problem sudha FLUENT 3 April 28, 2004 09:40
fluid flow fundas ram Main CFD Forum 5 June 17, 2000 22:31

All times are GMT -4. The time now is 18:31.