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February 13, 2007, 06:50 |
convergence in 3D turbulent flow
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#1 |
Guest
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hi ! I works on a metalurgical tundish, the turbulent flow 3D of liquid steel at high temperature. my problem is that the solution converged in more less than 100 itérations !!, I haven't found why, can you please help me. thanks
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February 13, 2007, 10:28 |
Re: convergence in 3D turbulent flow
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#2 |
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can u please elobarate? in more less than 100, wat do u mean exactly/?
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February 13, 2007, 12:16 |
Re: convergence in 3D turbulent flow
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#3 |
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hi Rizwan, I want to say that the simulation was for a 3D geometry of a metallurgical tundish ( it is a bath of liquid steel) the problem is that for a k-& model of turbulence, for my boundary conditions and for my grid of about 1 million of cells , the calculation converges in few itérations , like 27 itérations !!! and in some cases I tried it converges in 160 itérations. I want to know what may be the problem in my configuration. thank you for your help.
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February 13, 2007, 12:48 |
Re: convergence in 3D turbulent flow
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#4 |
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what is the convergence criteria u r using? if its 1e-3 i sugesst u use 1e-6 and use double precision. if its steady case, i strongly feel u have to look at ur problem once again.
Regards |
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February 14, 2007, 05:45 |
Re: convergence in 3D turbulent flow
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#5 |
Guest
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yes, I will change criteria and I will see if the problem disappears, thanks for help
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