Question

Consider the supersonic flow over a 5° half-angle wedge at zero angle of attack, as sketched in figure below. The freestream Mach number ahead of the wedge is 2.0, and the freestream pressure and density are 1.01 × 105 N/m2 and 1.23 kg/m3, respectively (this corresponds to standard sea level conditions). The pressures on the upper and lower surfaces of the wedge are constant with distances and equal to each other, namely, Pu = Pl = 1.31 × 105 N/m2. The pressure exerted on the base of the wedge is equal toP∞. The shear stress varies over both the upper and lower surfaces asτw = 431s−0.2. The chord length, c, of the wedge is 2 m. Calculate the drag for the wedge.

My solution is below, I know I am on the right track but I am not confident in my answer.

SI 301 2019 S A Cam LE I Yio 의사12.klo. kLo5

Answer 1

34.2 wave Te= 288k. Mao2. -0.2 C. SSCose E 2 Gs5 2-007 -о-2

Tofel Force: → Normal direction sSure force iS fp=h31x10. (c.ss) 3 (22.0072 Glalae etal force ndreckon 너GG07 치 Total Force tn χ-direction.

SSure ubtacl the -feree cue 4 back esse - .olloSx2 x2 x tom 5 e 9321 Fnet net Enet 57868-S