Nice day to you all, fellow modders) I need a bit of help, with physics actually)
What I need is a simple formula how to calculate a realistic drag value for certain shapes (payload related)... Me old boozer with sponge brains))))
So... there is drag that comes from air resistance, in the front of the object... the drag from friction, if its a long object with bug surface (even if small diameter), and a drag - don't know how it is called - made by the air sucked in behind the object if the shape is not so "streamlined"..
Well all three is important but what I need most is to know how to calculate the drag in front of the object.. (both subsonic and supersonic) for a cylinder (flat surface in front), a cone headed object, a hemisphere headed object, or a nicely pointed, curved missile head. Given the diameter (area) mass and the shape... is there anything else needed?
I wonder shall I add both the front and the friction drag?
thanks for your help!