UDF for Monte Carlo Ray tracing

H.H · March 24, 2016, 13:00

I'm simulating parabolic trough collector with non-uniform heat flux at the outer surface of the absorber tube. for which Monte Carlo ray distribution is required through UDF.

Reference Papers: 1)Three-dimensional numerical study of heat transfer characteristics in the receiver.
2) Heat transfer analysis and numerical simulation of a parabolic trough solar collector

Anyone can help me in programming monte carlo distribution UDF for parabolic trough collector?

Regards,
H.H

`e` · March 30, 2016, 18:32

What equation describes your non-uniform heat flux? Specifically, you'll need to have your heat flux as a function of position (x, y and z coordinates). Have a read of the DEFINE_PROFILE macro in the UDF manual.

H.H · March 30, 2016, 18:56

yeah I know little abt udf and I hav applied hagen poiseuille equation through UDf for parabolic velocity profile. I hav tried udf for monte carlo but I'm not sure enough abt its results.

H.H · March 30, 2016, 19:02

ls.I used polynomial function regression and converted it into linear regression models. need to discuss it in detail, if possible skype chat will be preferable so that ii can share my screen as well.

asaleem89 · June 8, 2019, 07:09

Did you find any solution on how to do this??

March 24, 2016, 13:00	UDF for Monte Carlo Ray tracing	#1
H.H New Member Hamza Join Date: Mar 2016 Posts: 5 Rep Power: 10	I'm simulating parabolic trough collector with non-uniform heat flux at the outer surface of the absorber tube. for which Monte Carlo ray distribution is required through UDF. Reference Papers: 1)Three-dimensional numerical study of heat transfer characteristics in the receiver. 2) Heat transfer analysis and numerical simulation of a parabolic trough solar collector Anyone can help me in programming monte carlo distribution UDF for parabolic trough collector? Regards, H.H

March 30, 2016, 18:32		#2
`e` Senior Member Join Date: Mar 2015 Posts: 892 Rep Power: 18	What equation describes your non-uniform heat flux? Specifically, you'll need to have your heat flux as a function of position (x, y and z coordinates). Have a read of the DEFINE_PROFILE macro in the UDF manual. H.H likes this.

March 30, 2016, 18:56		#3
H.H New Member Hamza Join Date: Mar 2016 Posts: 5 Rep Power: 10	yeah I know little abt udf and I hav applied hagen poiseuille equation through UDf for parabolic velocity profile. I hav tried udf for monte carlo but I'm not sure enough abt its results. Last edited by H.H; March 30, 2016 at 19:57. Reason: wrong msg

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Ray Tracing in OpenFOAM	MMC15	OpenFOAM Programming & Development	17	December 14, 2017 14:14
ray tracing in CFX	Aleksei	CFX	1	August 25, 2014 11:35
Solar Ray Tracing (Building obscuring view)	minehane	FLUENT	0	February 26, 2014 14:49
UDF...UDF...UDF...UDF	Luc SEMINEL	FLUENT	0	November 25, 2002 05:03
UDF, UDF, UDF, UDF	Luc SEMINEL	Main CFD Forum	0	November 25, 2002 05:01

March 30, 2016, 19:02		#4
H.H New Member Hamza Join Date: Mar 2016 Posts: 5 Rep Power: 10	ls.I used polynomial function regression and converted it into linear regression models. need to discuss it in detail, if possible skype chat will be preferable so that ii can share my screen as well.

June 8, 2019, 07:09		#5
asaleem89 New Member Arslan Saleem Join Date: Jun 2017 Posts: 9 Rep Power: 9	Did you find any solution on how to do this??