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*Expert Elite*
Posts: 377
Registered: ‎10-02-2012

Advection schemes

346 Views, 3 Replies
12-04-2012 01:37 AM

I pick this thread from one of my recent experiences. Typically, first order advection schemes (ADV1) and second order accurate advection schemes (ADV5) would produce different results because of artificial viscosity in ADV1. But would these results be very much affected ONLY while simulating distributed resistance, which models a negative pressure gradient zone? Or do these schemes always produce significantly different results for ALL types of physics, viz. incompressible turbulent flow, heat transfer, compressible flow etc.?

 

Regards

OJ

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*Expert Elite*
Posts: 377
Registered: ‎10-02-2012

Re: Advection schemes

12-05-2012 03:56 AM in reply to: OmkarJ

Anyone, please?

 

Regards

OJ

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*Expert Elite*
Posts: 377
Registered: ‎10-02-2012

Re: Advection schemes

01-14-2013 06:36 AM in reply to: OmkarJ

Someone?

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wildej
Posts: 643
Registered: ‎08-25-2011

Re: Advection schemes

01-15-2013 01:29 AM in reply to: OmkarJ

We would recommend switching away from ADV1 and to ADV5 for many purposes now. Standard incompressible flow should be OK but ADV5 will be better for compressible and pressure driven flows, those with resistances as you rightly say and also for many heat transfer calculations now too.



Jon Wilde
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