Calculation divergence of solid decomposition chemical reaction

[NJIFE]

Dear Developer，
I have compiled a chemical rate UDF of Ca(OH)2 decomposition, but the calculation example has been calculating divergence. Could you help find the cause? The example has been uploaded.
test.zip (30.5 MB)

[cgw]

Please check the warning messages.

I’m seeing a large number of warnings about excessive inlet velocity.

Note, you can use TAB and arrow keys to easily scroll through the errors.

While you can try increasing MAX_INLET_VEL_FAC as suggested in the message, this kind of error is usually due to poor mesh quality. This is a fairly common type of error. Try searching the forum fo related post. Search results for 'max_inlet_vel_fac' - NETL Flow Science Software Support

[NJIFE]

@cgw

Note, you can use TAB and arrow keys to easily scroll through the errors.

While you can try increasing MAX_INLET_VEL_FAC as suggested in the message, this kind of error is usually due to poor mesh quality. This is a fairly common type of error. Try searching the forum fo related post

Thank you very much！！