Framing PPE for complex geometry over cartesian grid -- CFD Online Discussion Forums

January 9, 2010, 12:45	Framing PPE for complex geometry over cartesian grid	#1
ravikant New Member A Ravi Kant Join Date: Nov 2009 Posts: 4 Rep Power: 16	Hi everyone, I am struck with the problem of framing pressure poisson equation (PPE) for flow past cylinder problem over cartesian grid. Especially those nodes which are adjacent to cylinder surface also referred to a ghost node. del2 p= del.u, where u,p are velocity & pressure corrections The problem with ghost node is that PPE involves either points for the node for computing del.u* and then framing p* equation. Can anyone tell me how these problems are tackled. I would be very thankful to you .

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