September 29, 2020 at 12:45 pmVaiju1997SubscriberI have made a ogive 3D nose cone having a base diameter of 30 cm and height of nose cone is 40 cm with an extruded body with the same diameter as of the base. I want to find the coefficient of drag at different velocities using a transient table, but when the Mach reaches in supersonic region, the c_d increases rapidly and gives me a unrealistic value reaching upto 100. I am just confused whether I should take the projected area as the reference area or is it just the surface area of the whole body. Can someone please help me out?n
September 29, 2020 at 10:55 pmRKAnsys EmployeeHello,nFor c_d, the projected area ( area projected in the direction of the flow) is used.
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