how do i begin with cfd??

NISHANTH REDDY · September 14, 2009, 17:26

i am a beginner to this subject. i am in my final year of aerospace engineering and learning this subject out of interest and curiosity. i bought a book on cfd by john d. anderson and am reading it. i am liking the book. but i would like to be guided as to how shall i go ahead in my learning process. i wish i would get the required support.

Anthony01 · September 15, 2009, 14:01

Your best bet is to get hold of a code to play with, there are a number of freeware codes available to download just search on Google. If you are studying your collage will probably have some CFD software so try having a go on that. The best way to start learning CFD is start off with some tutorials with whichever code you are using just to get to know your way around the GUI.

Then you need to go out on your own and try some of your own stuff. I found that analysing empirical or analytical based problems where you can validate your results is good practise before you try designing jet engines. Keeping it simple at first and try to understand what the code is doing what the effects of mesh density, turbulence models-parameters, solver options, boundary conditions and boundary layers to name but few have on your results.

It's important not get bogged down with generating pretty pictures, you need to learn how to investigate CFD solutions to insure what you are generating is realistic and valid. you can easily have CFD results that look realistic but are in fact complete rubbish.

Hope this helps

NISHANTH REDDY · September 15, 2009, 16:14

i am thankful for your reply but i am just in the beginning of this subject. i shall follow your advise soon once i get hold of the required knowledge and codecs. thank you.

September 14, 2009, 17:26	how do i begin with cfd??	#1
NISHANTH REDDY New Member nishanth Join Date: Sep 2009 Posts: 2 Rep Power: 0	i am a beginner to this subject. i am in my final year of aerospace engineering and learning this subject out of interest and curiosity. i bought a book on cfd by john d. anderson and am reading it. i am liking the book. but i would like to be guided as to how shall i go ahead in my learning process. i wish i would get the required support.

September 15, 2009, 14:01	Starting off with CFD	#2
Anthony01 New Member anthony01 Join Date: Apr 2009 Posts: 1 Rep Power: 0	Your best bet is to get hold of a code to play with, there are a number of freeware codes available to download just search on Google. If you are studying your collage will probably have some CFD software so try having a go on that. The best way to start learning CFD is start off with some tutorials with whichever code you are using just to get to know your way around the GUI. Then you need to go out on your own and try some of your own stuff. I found that analysing empirical or analytical based problems where you can validate your results is good practise before you try designing jet engines. Keeping it simple at first and try to understand what the code is doing what the effects of mesh density, turbulence models-parameters, solver options, boundary conditions and boundary layers to name but few have on your results. It's important not get bogged down with generating pretty pictures, you need to learn how to investigate CFD solutions to insure what you are generating is realistic and valid. you can easily have CFD results that look realistic but are in fact complete rubbish. Hope this helps

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September 15, 2009, 16:14		#3
NISHANTH REDDY New Member nishanth Join Date: Sep 2009 Posts: 2 Rep Power: 0	i am thankful for your reply but i am just in the beginning of this subject. i shall follow your advise soon once i get hold of the required knowledge and codecs. thank you.