Hi guys, sorry if this is the wrong place to post, but nearest I could find.
I have been thinking about the air resistance and subsequent heat generated when a spacecraft re-enters the atmosphere. In the past I have done A level physics and maths, but we always neglected air resistance.
How would you go about approximating the drag on a lander as it comes down through the atmosphere? I do not need an exact calculation, I imagine a good approximation would depend on the velocity and surface area of the lander, as well as the density of the air.
I am also interested about the heat generated from friction, though this is less important more of a curiosity. I am familiar with the very basics of thermodynamics, but I do not remember dealing with surface areas, which I assume will be very important regarding the rate of heat transfer.
I realise this is kind of a vague question, just really looking for some avenues to explore.
Thanks for reading.