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Modelling Superheater tubes

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Old   February 18, 2006, 04:38
Default Modelling Superheater tubes
  #1
Mohammed Zuber
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Hii friends, i ahve to model superheater tube bundles in a steam furnace considcering the radiation view factors also.i already have the combustion analysis of flue gases inside the furnace. i am unable to conceptualize the design of the superheaters inside the furnace. i need to design atleast 4 tubes to study the effect of high temp on the steam flow. How shal i incorporate the tubes inside the furnace model in Ansys ICEM, also during analysis using CFX 5.7 i am not able to understand how to consider the domain and sub domains in the model.

Kindly help
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Old   February 20, 2006, 04:02
Default Re: Modelling Superheater tubes
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Chirag Jayswal
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Create tubes using cylindrical surfaces without considering thickness. While specifying mesh parameters, tick on "internal wall" & "split wall". Create two different bodies, one representing fluid in furnace & other representing fluid in tubes.

Thus you should be able to model & mesh your domains.

Only doubt I have is, how will you create two different domains in CFX representing two different fluids?

Kind regards, Chirag
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Old   February 20, 2006, 04:33
Default Re: Modelling Superheater tubes
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Tom
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two different fluid??!!
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