Calculation of the lift\drag coefficient
Hello my friends here,
I have just finished a code on catching the shock around a blunt body with the method of Finite Difference Method (FDM). I have all primitive variables available.
My question is : How to calculate the lift\drag and then the corresponding coefficient?
I am thinking on calculate the force node by node and then sum them up, but I don't know to what accuracy this method will work.The envolvement of the metrics may aggravate the accuracy.
Is there some more accurate methods? Thanks a lot. :)
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