Upwind, central, QUICK scheme for Re~10000

quarkz · June 20, 2011, 11:42

Hi,

I am trying to solve flow past an airfoil at Re~ 10,000.

I am assuming laminar flow at the moment. What type of schemes should I choose? Like upwind, central, QUICK scheme etc?

Is there a preferred scheme?

Thanks!

morteza08 · June 20, 2011, 16:13

Hi
May be this help you:

Read the FLuent modelling part of the tutorial....
I think the default parameters going true for your case..

http://www.google.com/url?sa=t&sourc...ZRux4cY5wKhOdQ

quarkz · June 22, 2011, 13:18

Hi Morteza, thanks for the suggestion!

However, after reading thru the fluent part, it seems to only mention that it's using the PRESTO scheme. Nothing else much.

Did I miss out something?

akj · June 23, 2011, 09:52

Under Discretization, set Pressure to PRESTO, pressure velocity couling to SIMPLE and Momentum to Second-Order Upwind

quarkz · June 23, 2011, 16:04

Thanks akj! However, I am writing my numerical solver and I need to solve for relatively high Re (~10000) flow past an airfoil.

I wonder if anyone has experience and what type of schemes are more suitable for flow at this Re.

June 20, 2011, 11:42	Upwind, central, QUICK scheme for Re~10000	#1
quarkz Senior Member TWB Join Date: Mar 2009 Posts: 414 Rep Power: 19	Hi, I am trying to solve flow past an airfoil at Re~ 10,000. I am assuming laminar flow at the moment. What type of schemes should I choose? Like upwind, central, QUICK scheme etc? Is there a preferred scheme? Thanks!

June 23, 2011, 09:52		#4
akj New Member anil Join Date: Jun 2011 Location: chennai Posts: 20 Rep Power: 15	Under Discretization, set Pressure to PRESTO, pressure velocity couling to SIMPLE and Momentum to Second-Order Upwind aaryan likes this.

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June 20, 2011, 16:13		#2
morteza08 Senior Member Morteza Join Date: May 2010 Location: Iran,Islamic Republic of Posts: 161 Rep Power: 16	Hi May be this help you: Read the FLuent modelling part of the tutorial.... I think the default parameters going true for your case.. http://www.google.com/url?sa=t&sourc...ZRux4cY5wKhOdQ

June 22, 2011, 13:18		#3
quarkz Senior Member TWB Join Date: Mar 2009 Posts: 414 Rep Power: 19	Hi Morteza, thanks for the suggestion! However, after reading thru the fluent part, it seems to only mention that it's using the PRESTO scheme. Nothing else much. Did I miss out something?

June 23, 2011, 16:04		#5
quarkz Senior Member TWB Join Date: Mar 2009 Posts: 414 Rep Power: 19	Thanks akj! However, I am writing my numerical solver and I need to solve for relatively high Re (~10000) flow past an airfoil. I wonder if anyone has experience and what type of schemes are more suitable for flow at this Re.