I am modeling coal combuustion , in that I am getting a message as "Temperature limited to 4 cells in zone 2" like this . Can I know why is this message coming.How to solve this problem.

Regards, Ganesh Kumar.v

hi, this usually occurs not only in coal combustion but also in species transport reactions. i that if you have given the any wrong values of preexponential factor, activation energy and heat of formation. you may get that thing. check weather the above values are correct. all the best.

hai as u said it happens for non coal particle reactions also. but iam using all default values defined in Fluent ,still iam geting the warning message.Could you tell me what should i do to overcome this problem.

well, you might wanna change the default values of those parameters sumanth suggested. at times it do occurs for early iterations and dies off later. also you might want to consider switching your initialisation zone. I do had if initialised it from certain zone. check your grid too. just make tripple check to see you've the right information for particular parameters or variables.

Read the tutorial given in help of fluent because same coal based tutorial given in fluent help. MANOJKUMAR