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jessy April 15, 2011 05:26

about moving mesh

I focused on the oscillating cylinder of 2D in rest wall over a month,
the following is my compute process
1. employ the first mesh and initialize the flow field
2. get the new mesh, and interpolate new filed value from the old flow value
3. compute the grid velocity of inner grid (collocated grid)
4. compute the velcocity and pressure ( just substract the velcocity of grid from the fluid velocity when calculate the connvective term)
5. go to 2

still now, I havn't got the right velocity and pressure distribution in the flow.......
could anybody give me some hints or suggestions where I miss or make mistakes??

thank you!!

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