{"id":50278,"date":"2020-12-02T08:11:23","date_gmt":"2020-12-02T08:11:23","guid":{"rendered":"\/forum\/forums\/topic\/how-do-radiation-model-deal-with-fluid-species-radiation\/"},"modified":"2020-12-02T08:11:23","modified_gmt":"2020-12-02T08:11:23","slug":"how-do-radiation-model-deal-with-fluid-species-radiation","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/how-do-radiation-model-deal-with-fluid-species-radiation\/","title":{"rendered":"How DO radiation model deal with fluid species radiation?"},"content":{"rendered":"<p>Hi all,I am using DO model in fluent to consider radiation effects of a reactor. I checked participates in radiation in cell zone conditions panel which meanes I considere fluid media as particupating in radiation in my model. nThe fuel in my model is methane air mixture and it&#8217;s a multi-component system which imports chemkin mechanisms.  In the Materials panel, I have to set absorption coefficient, scattering coefficient and refractive index for mixture materials.nMy confusion is:how can I set up these coefficients? If the fuel is composed by methane and air mixture, then the set up of these coefficients is based on what kind of species in the system? Are there any basic rules for this?nCan anybody give me some suggestions?nBest regardsnweiqiangn<\/p>\n","protected":false},"template":"","class_list":["post-50278","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"Hi all,I am using DO model in fluent to consider radiation effects of a reactor. 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