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how to read 3d graph..

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I have attached the screenshot of a pressure graph.please let me know what the x,y and z axis represents.


3 Replies Last Post 1 nov 2012, 03:06 GMT-4

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Posted: 1 decade ago 23 ott 2012, 04:55 GMT-4

x,y and z are the spatial coordinates of the model, what else? The picture obviously shows pressure on a 2D slice of the 3D model.

Cheers
Edgar
x,y and z are the spatial coordinates of the model, what else? The picture obviously shows pressure on a 2D slice of the 3D model. Cheers Edgar

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Posted: 1 decade ago 1 nov 2012, 01:05 GMT-4
Thanks Edgar

one more thing..I would like to ask is that why do pressure values are coming negative in the vertical bar on the right side.
(snapshot attached)
Thanks Edgar one more thing..I would like to ask is that why do pressure values are coming negative in the vertical bar on the right side. (snapshot attached)


Ivar KJELBERG COMSOL Multiphysics(r) fan, retired, former "Senior Expert" at CSEM SA (CH)

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Posted: 1 decade ago 1 nov 2012, 03:06 GMT-4
Hi

on your fist graph it looks like you have a rather coarse mesh, perhaps too coarse, on the second I suppose that the sign comes from the surface definition, pressure is defined to the external surface normal. Could that be involved ?

--
Good luck
Ivar
Hi on your fist graph it looks like you have a rather coarse mesh, perhaps too coarse, on the second I suppose that the sign comes from the surface definition, pressure is defined to the external surface normal. Could that be involved ? -- Good luck Ivar

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