[veebuv]

Hi

Im trying to find the temperature difference between my inlet and outlet.Will i use areaAve function or the ave function over the inlet and outlet surface to get the correct answer.

Urgent response would be really really appreciated

Thanks

[khoopes]

What do you mean by correct answer? They each give different answers but none is 'correct'. ave will give the straight average of all the values on the surface. areaAve will weight those values by their respective areas. Another option that you are missing is massFlowAve which will weight those values by the massflow at each point. There is no right or wrong one to use, they are each appropriate for different things. Consult the documentation for more information.

[veebuv]

Hi

Thank you for the quick response. Perhaps i should rephrase. I need to find the difference in my inlet and outlet temperatures for a double cross flow cognitive heat transfer analysis. Which would be the more appropriate to use to tabulate and plot results aveArea or ave OR can i use the relation maxpoint(inlet)- minpoint(outlet) to get the rise in temperature

[singer1812]

I think you will want to use massFlowAve as suggested above.

If flow rates are uniform and properies constant then areaAve will give the same value. If there is large variation in flow distribution or properties, then massFlowAve is the averaging you usually want to use for items.