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heat transfer in thin film superconducting material
Posted Feb 24, 2015, 7:43 a.m. EST 2 Replies
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Hi ,
I am working on topic named heat transfer in thin film superconductor. where i am coating a superconductor layer on substrate and exciting it inside a liquid helium bath maintained at 4.2K. I am done with modelling but not able to get temperature profile while excited with known value of current(say 10mA), since it is at very low temperature.For boundry conditions I have just applied temperature on all the surface ie 4.2K. Question is
1) I have given zero electrical resistance for the superconducting material in order to act as superconductor.Will this hold good enough or should i feed some equations relating resistance and temperature?
2) Can i create a seperate domain for the liquid helium and assign its properties ? Will that fetch me some positive results.
3) Also this fluid gets evapourated due to generation of heat. Can that be evaluated ?
Can anyone please help me out in these topics
With regards,
Vignesh
I am working on topic named heat transfer in thin film superconductor. where i am coating a superconductor layer on substrate and exciting it inside a liquid helium bath maintained at 4.2K. I am done with modelling but not able to get temperature profile while excited with known value of current(say 10mA), since it is at very low temperature.For boundry conditions I have just applied temperature on all the surface ie 4.2K. Question is
1) I have given zero electrical resistance for the superconducting material in order to act as superconductor.Will this hold good enough or should i feed some equations relating resistance and temperature?
2) Can i create a seperate domain for the liquid helium and assign its properties ? Will that fetch me some positive results.
3) Also this fluid gets evapourated due to generation of heat. Can that be evaluated ?
Can anyone please help me out in these topics
With regards,
Vignesh
2 Replies Last Post Mar 1, 2015, 11:44 p.m. EST
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Posted:
10 years ago
Hi,
I suppose the magneto-thermal coupling modelling of superconductor is essential in your topic. The H-formulation is implemented method for modelling of superconductor.
A separate domain for the liquid helium is not needed, the best option is to define a boundary with the liquid helium by using Newton’s Law to explain the connective heat flux and boiling issue.
This article may be of little help: iopscience.iop.org/0953-2048/23/3/034018/
Best regards,
Hobart Gui
I suppose the magneto-thermal coupling modelling of superconductor is essential in your topic. The H-formulation is implemented method for modelling of superconductor.
A separate domain for the liquid helium is not needed, the best option is to define a boundary with the liquid helium by using Newton’s Law to explain the connective heat flux and boiling issue.
This article may be of little help: iopscience.iop.org/0953-2048/23/3/034018/
Best regards,
Hobart Gui
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Posted:
10 years ago
Thank you for your kind reply sir. I will go through these valuable tips.