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Old   May 10, 2004, 09:26
Default Strange ?
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I am computing a case where flow is behind a flame holder. I thought that case is assymetric I started to simulate half of the domain. Where solver (only 2d is used not asymteric is used) But then I noticed something called axisymmetric also and then copmared my resultsthe trend is similar but the results are difference specially they give me differenet recirculations length. Do anybody know the answers.

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Old   May 12, 2004, 03:16
Default Re: Strange ?
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Hi, I assume that with 'asymetric' you mean 'axisymmetric'. The difference between 2d and 2d-axisymmetric is the following:

-when using 2d, fluent assumes that your domain is a section of the indefinitely long volume that could be obtained translating the domain along the Z direction (if your domain is in the X-Y plane).

-when using 2d-axisymmetric, Fluent assumes that the domain is half a section of the volume you could botain by rotating the domain around the axis that you have defined. that it is perfectly normal to obtain different results.

I hope to have answered your question...


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