TELEMAC-MASCARET Forum :: Topic: Drag force on several areas, function of h (6/6)

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TOPIC: Drag force on several areas, function of h

Drag force on several areas, function of h 1 year 5 months ago #41609

c.coulet OFFLINE Moderator Posts: 3632 Thank you received: 1010	just look at your screenshot and you will see that all lines for polygon4 are unaligned with the previous one!
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Drag force on several areas, function of h 1 year 5 months ago #41610

ssiddi7 OFFLINE Senior Boarder Posts: 66	I edited and now the line after YSOM3(49) is aligned, but still it gives same error. you can see the alignment (attached).
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Drag force on several areas, function of h 1 year 5 months ago #41612

c.coulet OFFLINE Moderator Posts: 3632 Thank you received: 1010	could you post the last error message?
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Drag force on several areas, function of h 1 year 5 months ago #41617

ssiddi7 OFFLINE Senior Boarder Posts: 66	Thanks for your reply. I attached the error
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Drag force on several areas, function of h 1 year 5 months ago #41618

c.coulet OFFLINE Moderator Posts: 3632 Thank you received: 1010	Could you try to use your brain a little and read the error message instead of just posting and waiting for the answer ! The problem in is corpor!! No longer in dragfo !! As I already wrote previously: the problem of space missing exists for all line dealing with polygon 4 in dragfo and corpor...
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Drag force on several areas, function of h 1 year 5 months ago #41620

hydroenvironmental OFFLINE Senior Boarder Posts: 137 Thank you received: 31	correct!! coding should start in column 7 or greater so that it can be read
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Drag force on several areas, function of h 1 year 1 day ago #42600

ssiddi7
OFFLINE
Senior Boarder
Posts: 66

Hi, I am using drag coefficient and porosity fortran subroutine to simulate a wall impact in the domain. The result without the wall looks ok. But when I run with the drag, it shows irregularity in free surface. The expected situation is that the drag will increase the free surface and decrease the velocity. But there is a suddenn upward or downward spike in free surface which can be an error. I used mesh size 0.25 where the drag is working. I attached some cross sectional value in here for showing the result. This is a 2d model. Do you have any idea how to fix it or what are the reasons behind this? Is it mesh size? Thanks.