crank nicolson....emergency

morteza08 · May 30, 2010, 04:45

please open this link:
www.herbcroft.com/carnk.jpg

the problem is clear.
there are two code written by my friends..
which contour seems to be the proper contour for this problem...
check the code of worng contour and tell me the fault.
tnx

julien.decharentenay · May 31, 2010, 21:13

My vote goes to 2... It looks like a problem with boundary conditions for 1 (IMO).

JasonG · May 31, 2010, 21:21

Does frame 1 have a BC of the temperature ~= 0 along y=0?

morteza08 · June 1, 2010, 03:50

Quote:

Originally Posted by JasonG

Does frame 1 have a BC of the temperature ~= 0 along y=0?

yes..it has

JasonG · June 1, 2010, 09:14

If I am reading the problem figure correctly, it is saying the temperautre along Y=0 is constant with respect to theta. Figure 2 seems to represent that.

morteza08 · June 1, 2010, 09:21

temperature is no zero along y=0.....y=0 is an insulated surface....temperature along x=0 is constant and equals to 50

May 30, 2010, 04:45	crank nicolson....emergency	#1
morteza08 Senior Member Morteza Join Date: May 2010 Location: Iran,Islamic Republic of Posts: 161 Rep Power: 16	please open this link: www.herbcroft.com/carnk.jpg the problem is clear. there are two code written by my friends.. which contour seems to be the proper contour for this problem... check the code of worng contour and tell me the fault. tnx

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May 31, 2010, 21:13		#2
julien.decharentenay Senior Member Julien de Charentenay Join Date: Jun 2009 Location: Australia Posts: 231 Rep Power: 18	My vote goes to 2... It looks like a problem with boundary conditions for 1 (IMO).

May 31, 2010, 21:21		#3
JasonG Member Jason G. Join Date: Sep 2009 Location: St. Louis, IL Posts: 89 Rep Power: 17	Does frame 1 have a BC of the temperature ~= 0 along y=0?

June 1, 2010, 09:14		#5
JasonG Member Jason G. Join Date: Sep 2009 Location: St. Louis, IL Posts: 89 Rep Power: 17	If I am reading the problem figure correctly, it is saying the temperautre along Y=0 is constant with respect to theta. Figure 2 seems to represent that.

June 1, 2010, 09:21		#6
morteza08 Senior Member Morteza Join Date: May 2010 Location: Iran,Islamic Republic of Posts: 161 Rep Power: 16	temperature is no zero along y=0.....y=0 is an insulated surface....temperature along x=0 is constant and equals to 50