Expert: Mark Janus - 1/29/2008

Question
Dear Mark, I must repeat my question from jan 22-nd more precisely. I find the drag factor of body created by cutting the cylinder symetrically according to vertical axis, not horizontal (=cup). I am apologizing I was not precise enough in my first q. and thank you for your effort. Michal

Answer
Please e-mail me a drawing, because at this point I'm not sure of what shape you are asking about....

For example, consider a circular cylinder aligned with the x-axis (so y and z are the axes forming the cut plane of the cylinder).  Also we need to be on the same page regarding the flow direction....  is it cutting across the cylinder?..

I believe what I quoted before was for a traditional "cup-type" Savonius wind device.  

my e-mail is mark@hpc.msstate.edu