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-   -   UDF for using reduced reaction mechanism (ckwyp) (http://www.cfd-online.com/Forums/fluent-udf/106485-udf-using-reduced-reaction-mechanism-ckwyp.html)

vnm August 30, 2012 05:52

UDF for using reduced reaction mechanism (ckwyp)
 
I am modeling methane combustion with air. I am using GRI 1.2 reaction mechanism for the same. Some reduced reaction mechanisms are available i.e at http://www.engr.uconn.edu/~tlu/mechs/mechs.htm. and at http://www.princeton.edu/~cklaw/kine...tep/index.html., All these reduced reaction mechanism has a ckwyp subroutine which is written in Fortran language. This can be converted into an .obj file using a fortran compiler. I do not know how to incorporate this ckwyp subroutine in Fluent. Please help

Jinglz August 30, 2012 11:13

Fluent does not have the capabilites to read mechanisms like that. You must install the CHEMKIN component which will process your reduced mechanism for each iteration. Fluent will the read the data that CHEMKIN produces and apply it to your model.

vnm August 31, 2012 01:03

Fluent can read precompiled objects such as .obj file. (page page 5-18 of UDF manual http://hpce.iitm.ac.in/website/Manua.../udf/chp05.pdf
Is there a UDF to call ckwyp.obj to Fluent?


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