CFD versus Wind Tunnel Test

November 11, 2003, 04:45

1.I would like to know how I can use CFD without using wind tunnel test. 2.How can I find out drag force acting on car body in CFD for Drag Coefficient. 3.I would like to know papers or literatures about using CFD instead of experiment (Wind Tunnel Test) in aspect of procedure, method and analysis. Please recieve my thank in advance for your assistances.

November 11, 2003, 05:25

There are some softwares in which u can simulate the windtunnel conditions for example mach n0. temperatuure etc. execution of the program will give the lift drag etc., you can find this in a on-line java applet program in the website of NASA.

November 11, 2003, 06:11

Thank you very much for our comments. However, if I would like to use other general purposed CFD commercial code such as ANSYS, Fluent etc., Can you recommend how?

November 12, 2003, 01:07

Sawasdee krap Khun Wuttichai,

What is the exact nature of your project?

A car in the wind-tunnel - there are a number of CFD software packages available... The accuracy of your answers is what is ultimately important - IMHO this will depend more on your modelling technique, than the software itself...

Regards,

Des Aubery... (adTherm Technology - www.adtherm.com - des@adtherm.com)

November 11, 2003, 04:45	CFD versus Wind Tunnel Test	#1
wuttichai Guest Posts: n/a	1.I would like to know how I can use CFD without using wind tunnel test. 2.How can I find out drag force acting on car body in CFD for Drag Coefficient. 3.I would like to know papers or literatures about using CFD instead of experiment (Wind Tunnel Test) in aspect of procedure, method and analysis. Please recieve my thank in advance for your assistances.

November 11, 2003, 05:25	Re: CFD versus Wind Tunnel Test	#2
K.M. BAZEETH AHAMED Guest Posts: n/a	There are some softwares in which u can simulate the windtunnel conditions for example mach n0. temperatuure etc. execution of the program will give the lift drag etc., you can find this in a on-line java applet program in the website of NASA.

November 11, 2003, 06:11	Re: CFD versus Wind Tunnel Test	#3
wuttichai Guest Posts: n/a	Thank you very much for our comments. However, if I would like to use other general purposed CFD commercial code such as ANSYS, Fluent etc., Can you recommend how?

November 12, 2003, 01:07	Re: CFD versus Wind Tunnel Test	#4
Des Aubery Guest Posts: n/a	Sawasdee krap Khun Wuttichai, What is the exact nature of your project? A car in the wind-tunnel - there are a number of CFD software packages available... The accuracy of your answers is what is ultimately important - IMHO this will depend more on your modelling technique, than the software itself... Regards, Des Aubery... (adTherm Technology - www.adtherm.com - des@adtherm.com)

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