Turbulence Modeling
 

Can anybody suggest me is there any Text book for learning turbulence modeling basics, since I am a new to this world.

Regards

RAJURAMAIAH

Re: Turbulence Modeling
 

I have two suggestions that are more general CFD.

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A good basic book with a number of useful examples. I think this is a book that most ppl on this forum have read (although their impressions of the book differs):

"An Introduction to Computational Fluid Dynamics - The Finite Volume Method" by H.K. Versteeg and W. Malalasekera

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A different approach can be found in:

"Fundamentals of Computational Fluid Dynamics" by P.J. Roache

The second book covers a lot of different techniques. Regrettably the author suffers from a too-big-for-his-own-good ego, and also the book is overrun by simple typos. Anyway it has an impressive list of references.

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Also you can always make a search on this site. It contains a few reviews of turbulence books.

Re: Turbulence Modeling
 

TO begin with Versteeg's book is good. Then I would suggest you to read "Turbulence modelling by Wilcox" and another book by "Paul Durbin"

Regards

Apurva

Re: Turbulence Modeling
 

The poster's opinions, unfortunately, lack historical perspective.

When Pat Roache's book was published, it was THE book on CFD. At that time, the work was comprehensive in its coverage. The opinions were the result of Roache's own experience, often the only objective experience available. It is unfortunate that words written 40 years ago are seen as 'too much ego' today. The CFD world today, when the field has expanded enormously and CFD texts are issuing from all parts of the world, is very different.

The impact of typos is in the eye of the reader. Note that both editions of Roache's book were self-published, which means that the book came out quickly, probably without professional editing, and (Most Important) at a LOW cost that students could afford.

Re: Turbulence Modeling
 

try to get your hands onto "Lactures in Mathematical models of turbulece" by Launder and Spalding. They were the first guys to develop the first basic turbulence models. This book is very basic to understand the turbulence modelling. hope this helps.

Re: Turbulence Modeling
 

3 more to consider:

H. Tennekes and J. L. Lumley, "A First Course in Turbulence," MIT Press.

P. Bradshaw, editor, "Turbulence," Topics in Applied Physics. Springer-Verlag.

J. O. Hinze, "Turbulence," McGraw-Hill.

These are all older books, so the development is probably a bit slower and detailed. Not a bad thing if you're just beginning.

Re: Turbulence Modeling
 

I agree with Jim's list. Also consider another book:

Turbulence in Fluids by Marcel Leiseur.

Before RAJURAMAIAH can start, he will need to have at least some basic knowledge of turbulence. This will help in appreciating the assumptions/ideas behind each model. Speaking for myself, the books in Jim's list or the one I suggested are bit difficult to read. However bypassing the basics is like trying to do CFD without basics of fluids.

Abhijit

Re: Turbulence Modeling
 

Hello Jim,

"The poster's opinions, unfortunately, lack historical perspective."

My edition is the "new" version from -98. And considering what you have written (i.e. given me historical perspective) I still feel the same.

"When Pat Roache's book was published, it was THE book on CFD."

Well he devotes most of his preface to stating this....

"It is unfortunate that words written 40 years ago are seen as 'too much ego' today."

Why would anyone like to read how many typos the author have found in citations of his previous work? (again see the preface)

"The impact of typos is in the eye of the reader."

Yes absolutely. But since the book was recommended to a beginner I took into consideration that some typos (e.g. discretisation typos) can be difficult to find. This can actually make a beginner learn wrong from the start.

Finally, I Did recommend the book so this was no personal attack against P.J. Roache. (or against you Jim ;) )

Re: Turbulence Modeling
 

Hi,

The recent books on turbulence are a good start:

Pope (2000), Turbulent flows (Cambridge) Bernard & Wallace (2003), Turbulent flows (Cambridge) Davidson (2004), Turbulence (Oxford)

They have a quite up-to-date chapter on turbulence modelling. Furthermore, Durbin & Pettersson-Reif (Wiley) is interesting.

Tom

Re: Turbulence Modeling
 

It's always dangerous to claim someone is first. The earliest reference to turbulence models of the type developed and made popular by Launder and Spalding and collaborators that I can find is Harlow and Nakayama, Physics of Fluids 10, 2323 (1967). That's the old volume 10, not the new one. Does anyone know of earlier work on transport type models?

Re: Turbulence Modeling
 

Yticitrov,

This exchange has been quite informative. Thank you!

The last Roache book that I knew of was the one written jointly by Pat and his wife. And the flack for that one said Pat had 'retired.'

So thanks for tipping me (and perhaps a few others) that there are recent Roache volumes out there - although not at the bargain prices of the early works.

Turbulence modeling
 

Dear All
I am a PhD student and working on Flat fan nozzle modeling. I have one problem if someone can give me an idea that will be grateful.
When I simulate the nozzle with ANSYS by using VOF approach the point where the water enter to the air the shape of stream is different then experimental results from PIV. Then main issue is that when jet enter in air the pressure drops suddenly and outside react with jet, Is any possibility in ANSYS Fluent so that we can add that air at inlet.
Please guide me. Thanks