[Techies]

Hi guys,
I'm trying to find the experimental document for simulating the heat transfer of pin-fin cooling in turbine blade. I have read many but I can't find any document about pinfin have Heat flux on the wall.
Anyone have done with the simulation heat transfer of Pin-Fin cooling ? Please help me to understand and suggest me some document about Pinfin cooling.
Thanks all.

[aero_head]

Originally Posted by Techies

Hi guys,
I'm trying to find the experimental document for simulating the heat transfer of pin-fin cooling in turbine blade. I have read many but I can't find any document about pinfin have Heat flux on the wall.
Anyone have done with the simulation heat transfer of Pin-Fin cooling ? Please help me to understand and suggest me some document about Pinfin cooling.
Thanks all.

Hello,

There are plenty of YouTube videos on this topic, such as: https://www.youtube.com/watch?v=RasNjxVy6mY

[SESP]

Hello,

your question is a bit too vague to be able to help you. Pin fin cooling is a very broad topic and has been investigated in numerous studies. For gas turbine cooling, you might search for some older (but very good) papers by Metzger et al. for experimental reference data and correlations.
For CFD, it depends a lot on how you want to proceed: is it going to be fluid only or are you planning to run a CHT simulation... That will affect your choice of boundary condition. Both fixed wall temperature or wall heat flux are physically valid, it depends on the scenario that you want to simulate.

[Techies]

Originally Posted by aero_head

Hello,

There are plenty of YouTube videos on this topic, such as: https://www.youtube.com/watch?v=RasNjxVy6mY

I did, but i can't setup boundary condition like them. I need a experimental document to compare my simulating result.

[Techies]

Originally Posted by SESP

Hello,

your question is a bit too vague to be able to help you. Pin fin cooling is a very broad topic and has been investigated in numerous studies. For gas turbine cooling, you might search for some older (but very good) papers by Metzger et al. for experimental reference data and correlations.
For CFD, it depends a lot on how you want to proceed: is it going to be fluid only or are you planning to run a CHT simulation... That will affect your choice of boundary condition. Both fixed wall temperature or wall heat flux are physically valid, it depends on the scenario that you want to simulate.

I found more the investigation of M.K.Chyu about pin-fin cooling but i can't collect enough data about the boundary condition for simulating.
This is a example https://citeseerx.ist.psu.edu/viewdo...=rep1&type=pdf
I have a simulation document of the another use above document. But when i read, i can't find any information about heat flux, they just indice that the heat wall is constant heat flux, no quatity of heat flux, velocity 3.15+temperature 287K inlet, pressure outlet 0 and other wall is adiabatic.

[aero_head]

Originally Posted by Techies

I did, but i can't setup boundary condition like them. I need a experimental document to compare my simulating result.

Can you not use theory (i.e. calculations) to compare the result of your simulation?

[Techies]

Originally Posted by aero_head

Can you not use theory (i.e. calculations) to compare the result of your simulation?

U mean I can calculate by hand ? I dont know how to do that. I just have velocity+temperature inlet, pressure outlet

[aero_head]

Originally Posted by Techies

U mean I can calculate by hand ? I dont know how to do that. I just have velocity+temperature inlet, pressure outlet

Sure, it sounds like a basic heat transfer problem, there are plenty of literature and examples on how to do this online, i.e. here: http://www.csun.edu/~lcaretto/me375/03-fins.pdf .

Velocity, geometry, material and temperature are really all you need.

Also sorry about earlier, I should stop assuming all users here are engineers/senior engineering students.

[Techies]

Originally Posted by aero_head

Sure, it sounds like a basic heat transfer problem, there are plenty of literature and examples on how to do this online, i.e. here: http://www.csun.edu/~lcaretto/me375/03-fins.pdf .

Velocity, geometry, material and temperature are really all you need.

Also sorry about earlier, I should stop assuming all users here are engineers/engineering students.

wow, thanks for ur document. In my university, I never see that before. I will read and respond to u.

[aero_head]

Originally Posted by Techies

wow, thanks for ur document. In my university, I never see that before. I will read and respond to u.

No worries. I have taken heat transfer already and it was one of my favourite courses. Best of luck, do let us know if you have any questions regarding the material.

[Techies]

Originally Posted by aero_head

No worries. I have taken heat transfer already and it was one of my favourite courses. Best of luck, do let us know if you have any questions regarding the material.

All example in this material have enough variable to calculate with Q=k(Tw-Tb) and not concern with Nusselt number. In fluent, boundary just have heat flux or temperature on wall. Do u have any document regarding Nusselt number and calculate Heat Transfer in CFD?

[aero_head]

Originally Posted by Techies

All example in this material have enough variable to calculate with Q=k(Tw-Tb) and not concern with Nusselt number. In fluent, boundary just have heat flux or temperature on wall. Do u have any document regarding Nusselt number and calculate Heat Transfer in CFD?

Sure: https://www.sfu.ca/~mbahrami/ENSC%20...Convection.pdf
Here is a thread that goes over how to do it in Fluent:
Nusselt number calculation in Fluent