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-   -   Modelling Superheater tubes (http://www.cfd-online.com/Forums/cfx/22196-modelling-superheater-tubes.html)

Mohammed Zuber February 18, 2006 05:38

Modelling Superheater tubes
 
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

Chirag Jayswal February 20, 2006 05:02

Re: Modelling Superheater tubes
 
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

Tom February 20, 2006 05:33

Re: Modelling Superheater tubes
 
two different fluid??!!


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