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Old   August 4, 2005, 05:18
Default need some suggestion
  #1
nabeel mohsin
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hi i am doing internal flow through of intake of turbocharge engine of 0.6 mach speed to calculate force on wall at bend.i am using coupled solver with 1 CFL no and inviscid flow.the soltion is not converging at high spped flow .can anybody tell me what i should do nabeel
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Old   August 4, 2005, 07:11
Default Re: need some suggestion
  #2
edi ghirardi
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At first sight: decrease your CFL (at least at startup). By the way: is the solver explicit or implicit?

Cheers

Edi.
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Old   August 9, 2005, 18:12
Default Re: need some suggestion
  #3
Laika
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why inviscid flow for an internal calculation? Why coupled solver? Did the segregated solver mess up?

anyway, good luck,

Laika, still orbiting
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Old   August 10, 2005, 02:39
Default Re: need some suggestion
  #4
nabeel mohsin
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hi, coupled solver is used because seed is 180m/s and implict is being used i reduced CFL 0.001 to 1 but not converged second question answer flow is high speed so inviscid is used and 1 equation model is preferred. my target is to calaculate the pressure force on a area at bend of turbo jet waiting for your response
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Old   August 10, 2005, 18:02
Default Re: need some suggestion
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Laika
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Have you tried to simulate using the segregated solver and a high Re turbulence model yet?

Laika, still orbiting
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Old   August 18, 2005, 03:55
Default Re: need some suggestion
  #6
nabeel
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hi i have used segregated solver but with momentum power law solution controls and simplec pressure velocity coupling but not have good result i used 1 equation because of high speed flow any suggestion nabeel
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Old   August 22, 2005, 06:55
Default Re: need some suggestion
  #7
nabeel
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hi i have tried pressure far field but no avail i vannot attain velovity more that 100m/s even map meshing .can any boddddddddy help !!!!!!!!!!!!!!!!!! nabeel
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Old   August 23, 2005, 04:45
Default Re: need some suggestion
  #8
not solved yet
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hi i have tried skw turbuolence model but it was not diveging and with SA model it was converged till 100 m/s any helppppppppppp nabeel
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