calculation of wall heat flux in CHT

May 26, 2008, 10:56

Dear all,

Could you please help clarify the calculation of wall heat flux in CHT. The bc is a constant ambient temperature (100 deg C) and a given correlation of nucleate boiling as a function of heat flux (h = c*abs(Qwall)^0.671). For the heat fluxes at the inner wall and outer wall, how are they calculated and should I use 'wall heat flux' from the solver results for both? Is the constant T_ambient used here all the time for the calculation and given in the solver as the wall external temperature?

Many thanks! Fei

peterlee · July 23, 2009, 10:00

Send me your definition file, and maybe I can check out the prolem!
EMail：lizongshuo@163.com

May 26, 2008, 10:56	calculation of wall heat flux in CHT	#1
richard Guest Posts: n/a	Dear all, Could you please help clarify the calculation of wall heat flux in CHT. The bc is a constant ambient temperature (100 deg C) and a given correlation of nucleate boiling as a function of heat flux (h = c*abs(Qwall)^0.671). For the heat fluxes at the inner wall and outer wall, how are they calculated and should I use 'wall heat flux' from the solver results for both? Is the constant T_ambient used here all the time for the calculation and given in the solver as the wall external temperature? Many thanks! Fei

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July 23, 2009, 10:00		#2
peterlee New Member peterlee Join Date: May 2009 Posts: 10 Rep Power: 17	Send me your definition file, and maybe I can check out the prolem! EMail：lizongshuo@163.com