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Old   May 16, 2013, 05:36
Default SIMPLE algorithm
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I read An Introduction to Computational Fluid Dynamics: The Finite Volume Method (first edition), in page 147, could you explain me about step 4??
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Old   May 16, 2013, 05:51
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Please tell us the name of the chapter and section / subsection. Meantime the second edition is on the market
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Old   May 16, 2013, 06:38
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Hi, the step 4 tells you to update the solution of any other transport equation you might want to solve using the corrected values of pressure and velocity. These additional equations can be the transport of, for instance, temperature or a scalar.

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Old   May 16, 2013, 06:55
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Dear michujo,
thank you very much, now i breath normally 2 days i am thinking about step 4
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Old   May 16, 2013, 06:56
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Quote:
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Please tell us the name of the chapter and section / subsection. Meantime the second edition is on the market
first edition, i haven't read second edition.
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Old   May 16, 2013, 06:59
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Quote:
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first edition, i haven't read second edition.
That's why I was asking the name of chapter / section and subsection, so also people with the second edition are able to help you...
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Old   May 16, 2013, 07:25
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Quote:
Originally Posted by michujo View Post
Hi, the step 4 tells you to update the solution of any other transport equation you might want to solve using the corrected values of pressure and velocity. These additional equations can be the transport of, for instance, temperature or a scalar.

Cheers,
Michujo.
dear Michujo,

i can ignore this step, because i just need the velocity and flow direction?
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Old   May 16, 2013, 07:27
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That's why I was asking the name of chapter / section and subsection, so also people with the second edition are able to help you...
honestly, this is the first time i want to solve simple algorithm and i have many question specially about the p star guess, the number of p star must equal to the number of nodes?
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Old   May 16, 2013, 10:09
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Hi.

1) Yes, if you're only solving for pressure and velocity then you can ignore step 4.

2) pstar is defined in each cell so you have as many pstar values as cells in your domain.

I would also recommend having a look at the second edition of Versteeg to be a little bit more up to date. Also there are interesting additional sections on combustion and radiation.

Cheers,
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Old   May 16, 2013, 10:11
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I would also recommend having a look at the second edition of Versteeg to be a little bit more up to date.
That wasn't what I was trying to say. I just wanted to know the chapter.. name so I can have a look in my own book.
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Old   May 16, 2013, 11:15
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Hi, I don't have the second edition right now with me, but in the first edition I looked at the scheme of the SIMPLE algorithm in section 6. I guess you will find the exact same figure in the 2nd edition.


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