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January 10, 2010, 10:53 |
transient flow
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#1 |
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Hello every one,
I am simulating a pipe flow.there are two inlets for this pipe.For one inlet flow velocity is independent of time,for another inlet flow velocity is varying with respect to time. For second inlet i am using transient boundary profile. like this ( (inlet point 72) (time 0 1 2 ..... ) ( velocity 0 13.6 13.6 ..... 0 0 ...) ) But after applying this boundary profile as boundary condition there is no flow in to the pipe. I think the profile is not updating for each time step(means it is at first time step only 0 velocity). And showing a waring there are no x,y,z velocities for inlet I've stuck here for a long time i tried so many ways to overcome this problem and i am failed. So please give me any solution for this problem. please....... Thanks in advance. |
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January 11, 2010, 02:12 |
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#2 |
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Maxime Perelli
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If the velocity distribution on your inlet is constant, you should correct your second line, with:
(test transient 72 1) instead of (inlet point 72)
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January 12, 2010, 01:53 |
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#3 |
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Thanks for u r reply max,
I will try with u r suggestion. |
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January 12, 2010, 03:15 |
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#4 |
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Maxime Perelli
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I also forgot to say that you have to modify the name "velocity" to "v_x" for velocity along x-axis (resp. v_y for y-axis and v_z for z-axis)
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In memory of my friend Hervé: CFD engineer & freerider |
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