[niaz]

Hello all

I wanna visualize heat lines in my case. is there any way to visualize it with cfd_post or fluent builtin features?

[sunilpatil]

Originally Posted by niaz

Hello all

I wanna visualize heat lines in my case. is there any way to visualize it with cfd_post or fluent builtin features?

Hi,
Have you got the solution?

[niaz]

Not yet, one way is to solve the heat function inside the software but i am looking for a simple way.

[LuckyTran]

What are heat lines?

[vidyadhar]

Originally Posted by LuckyTran

What are heat lines?

Heat lines are similar to stream lines. If we have a heat flux vector potential then the derivatives of that potential would give heat flow lines.


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I too wanted to plot heat lines. But I need help on how to do!



I have simulated three dimensional heat and fluid flow problem in Fluent. I have the data for velocity, temperature fields.
Now I want to obtain an unknown function "theta" by solving the below equation:
curl(theta) = rho*cp*(V)*T - k*(grad T)
where the terms on the right hand side (density, specific heat, velocity vector, temperature, thermal conductivity) are known from data. The left hand side contains curl of an unknown function “Theta”. I want to find this “Theta” variation which gives me heat function distribution.
Is it possible? If so, I request the procedure how it is to be done.
This "theta" is the heat flux vector potential in three Dimensions.
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The reference article on this subject is "Peter Vadasz, Heat Flux Vector Potential in Convective Heat Transfer", Journal of Heat Transfer, 140(2018) 051701-1


Thanks & Regards,
vidyadhar

[FMDenaro]

I am not sure to understand what is theta (I have never seen such a relation) it is a vector field not a scalar function, should theta be identified as the gradient of the temperature?If it is the LHS vanishes, otherwise, if k is constant you can apply the curl to both term of the relations and write three elliptic equations for theta with the vorticity components as source terms

[damu1414]

Dear all,

Thank you for the thread.

I would like to know if anybody has tried plotting heatlines using tecplot. There is an option to find the heatfunction components and plot the same similar to streamfunction.

Thank you