Dimensional analysis is used to derive the drag force (flow resistance equation in external flow) FD = CD 1 2ρv2A (Equation 7.34), and its corresponding drag coefficient, CD, which expresses the ratio...

Dimensional analysis is used to derive the drag force (flow resistance equation in external flow) FD = CD 1 2ρv2A (Equation 7.34), and its corresponding drag coefficient, CD, which expresses the ratio of a real flow variable (such as velocity, pressure, force, etc.) to its corresponding ideal flow variable. Mathematically illustrate the expression for the drag coefficient, CD.

Equation 7.34