Multiphase reaction no heat generated

HorstvanGrass · October 27, 2020, 11:33

Hi,
I'm modelling a Hydrogen flame combustion with water condensation.
I'm using following models:
-Eddy dissipation modell for combustion of a mixture

-Dispersed Mixture modell for multiphase

However when the multiphase modell is enabled, the reaction in my mixture phase is not producing heat anymore

and the temperature drops.

The raction takes place but the heat of reaction is zero in my whole domain.

Gert-Jan · October 27, 2020, 15:39

maybe the complete domain is filled with liquid water?

October 27, 2020, 11:33	Multiphase reaction no heat generated	#1
HorstvanGrass Member Horst van Gras Join Date: Oct 2018 Posts: 45 Rep Power: 8	Hi, I'm modelling a Hydrogen flame combustion with water condensation. I'm using following models: -Eddy dissipation modell for combustion of a mixture -Dispersed Mixture modell for multiphase However when the multiphase modell is enabled, the reaction in my mixture phase is not producing heat anymore and the temperature drops. The raction takes place but the heat of reaction is zero in my whole domain.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Ansys Fluent; Heat of reaction	fesmaeil	FLUENT	0	May 3, 2018 19:14
Heat release in heterogeneous reaction	Quntin	Main CFD Forum	0	November 19, 2017 00:23
Question about heat transfer coefficient setting for CFX	Anna Tian	CFX	1	June 16, 2013 07:28
Segmentation fault in running alternateSteadyReactingFoam,why?	NewKid	OpenFOAM	18	January 20, 2011 17:55
chemical reaction - decompostition	La S. Hyuck	CFX	1	May 23, 2001 01:07

October 27, 2020, 15:39		#2
Gert-Jan Senior Member Gert-Jan Join Date: Oct 2012 Location: Europe Posts: 1,928 Rep Power: 28	maybe the complete domain is filled with liquid water?