flow past a sphere

January 6, 2009, 05:33

I caculated the flow past a sphere. Now I have a question. How can I obtain the following field parameters from the flow field

separation angle on the sphere

the length and center of the vortex

Any help much appreciated!

CHEN

kr63 · January 30, 2010, 03:12

Hi Chan
Flow separates where there is reverse flow close to the surface of the sphere. This normally happens around 80 degrees for lamianar bl and 120 deg for turbulent bl. I donot know why does it separate before 90 deg in lamainar case as there is favourable pressure grdient on the front surface. Do have some idea.

January 6, 2009, 05:33	flow past a sphere	#1
CHEN Guest Posts: n/a	I caculated the flow past a sphere. Now I have a question. How can I obtain the following field parameters from the flow field separation angle on the sphere the length and center of the vortex Any help much appreciated! CHEN

January 30, 2010, 03:12	flow over a sphere	#2
kr63 New Member khurram Join Date: Jan 2010 Posts: 8 Rep Power: 16	Hi Chan Flow separates where there is reverse flow close to the surface of the sphere. This normally happens around 80 degrees for lamianar bl and 120 deg for turbulent bl. I donot know why does it separate before 90 deg in lamainar case as there is favourable pressure grdient on the front surface. Do have some idea.

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