Aerodynamics for engineering students - part 9 ppt

... - 2e - 2d - f b = 2 - d - 2e - f c=l-e Substituting these in Eqn (9. 15) gives T= c~ 4-2 -2 d-f 2-d-2e-f I-e d e f n p VKV = CpnZD4f [(z)d(L)e (-3 f] D2n pD2n2 (9. 16) ... [(L)"(T)-b(ML-3)c(L2T-1)d(ML-'T-2)e(LT-1~] Separating this into the three fundamental equations gives (M) I=c+e (L) 1 =a-3c+2d-e+f (T) 2=b+d+2e+f...

Ngày tải lên: 08/08/2014, 11:21

... direction. For three-dimensional flows Eqns (2.45) and (2.46) are written in the forms: 1 at ax ay az (ax ay az ap ap ap ap au av aw -+ u-+v-+w-+p -+ - +- =o au av aw -+ - +-= o ax ... becomes -6 xSy aP x 1 at Equating (2.42) and (2.43) gives the general equation of continuity, thus: aP a(Pu) a(P.1 - 0 -+ - + at ax ay This can...

Ngày tải lên: 08/08/2014, 11:21

... Therefore p-po=-pU 1- 2sin0f- 2 2[ ( 2rua >’ (3. 49) Potential flow 1 29 Now and Therefore r; = x2 + y2 - 2xc + c2 m x2+y 2-2 xc+c2 47r x2 + y2 + 2xc + c2 $I=-ln ... - In - = - In - * Here TO is the radius of the equipotential q5 = 0 for the isolated source and the isolated sink, but not for the combination....

Ngày tải lên: 08/08/2014, 11:21

... dx H = -Jhge where p = pUk and x’ = x - (1 - F)c. Putting C C c x/ =-( i -cose) (i-cos~) =-( cos~-cose) 2 2 2 and k from Eqn (4.51): +,( (1 -; ) COS4Il - (1 where ... some general form given by, say, (4.61) V - = B~ + CB, cosne V Fig. 4. 19 170 Aerodynamics for Engineering Students iy z plane 0 U Fig. 4.8 Zhuk...

Ngày tải lên: 08/08/2014, 11:21

... 0.0047 39 = 0.220 79 A1 + 0. 892 02 A3 + 1.251 00 A5 + 0.66688 A7 0.011637 = 0.663 19 A1 f0 .98 957 A3 - 1.315 95 A5 - 1.64234 A7 0.0216 65 = 1.1 15 73 A1 - 0.6 79 35 A3 - 0. 896 ... 0 .92 3 88 0 .92 3 88 0.382 68 0 .92 3 88 ~14 0.707 11 0.707 11 -0 .707 11 -0 .707 11 0.707 11 3~18 0 .92 3 88 -0 .382 68 -0 .38268 0 .92 3 88 0.382...

Ngày tải lên: 08/08/2014, 11:21

... v2 u2 -+ - +- 2 7-1 2 y-1 Pmiq I Fig. 6.37 (a) 'Incompressible' flow. (b) Compressible subscritical flow. (c) Critical flow 324 Aerodynamics for Engineering Students ... Rankine- Hugoniot relations Eqn (6.42): -= or rearranged For air -/ = 1.4 and p2 6M: P1 5+M? -= - Reversed to give the ratio in terms of the exit Mach numbe...

Ngày tải lên: 08/08/2014, 11:21

... 0.3 0.08 0.5 0.0 0.7 -0 .08 0.8 -0 .12 0 .9 -0 .16 1.0 -0 .20 e 11.31" 9. 09& quot; 6.84" 4.57" 0.0 -4 .57" -6 .84" -9 . 09& quot; -1 1.31" ne 0" 2.22" ... high-speed tunnel at Guidornia, Atti Guidornia, No. 17, September 193 9. 380 Aerodynamics for Engineering Students 1. 0- - Flat plat...

Ngày tải lên: 08/08/2014, 11:21

... 'H-R, method for predicting transition', AZAA J., 19, 810412. 420 Aerodynamics for Engineering Students Aerodynamics for Engineering Students Pi 0 .9 0.8 0.7 - 0.6 0.5 - 0.4 ... 0.8 0.7 - 0.6 0.5 - 0.4 - 0.3 - - - U - 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 1.0 0 .9 0.8 0.7 - 0.6 0.5 - 0....

Ngày tải lên: 08/08/2014, 11:21