I'm using flow simulation in solidworks on sphere to get drag coefficient and known that the drag coefficient = 0.44 when Reynold number = 10,000 to 10^5
So I draw sphere with radius of 0.025 m and made speed = 3.1 m/s then
Re =V*D/v where v = kinematic viscosity = 1.5111 * 10^-5
Re = 10,250
I made global goal force(x) and velocity(x) and i made equation goal cd = 2*force(x)/(1.204*3.141592*0.025^2*velocity(x)^2)
and after running cd not equal 0.44 it equals 0.17 !!
is it error in program or in my calculations or in what ?!!