Aerodynamics for engineering students - part 6 potx

... (Eqn (6. 17)): which gives the differential equation Equation (6. 66) may now be integrated. Thus or From Eqn (6. 65) (6. 65) (6. 66) (6. 67) Compressible flow 339 i.e. when Mk(y - l)u'/U, ... 2+ ( 7- 1)M; For air 6. 4.5 Temperature rise across the normal shock Directly from the equation of state and Eqns (6. 43) and (6. 45): For air (6. 45) (6...

Ngày tải lên: 08/08/2014, 11:21

... +66 0 64 0 278 x lo6 35 .6 2 +60 0 60 0 2 16 x IO6 32.3 3 +420 60 0 1 06 x IO6 22 .6 4 +228 60 0 31 x lo6 12.3 5 + 25 62 0 0.4 x lo6 1.3 6 -2 04 64 0 27 x 1 06 -1 1.0 7 -3 96 640 ... 2.0 x 60 0 ( ;;l) B1 = 300 + 3.0x400(2-l)+ 6 6 2 +- which gives Also B1(= B6) = 1050mm2 i.e. 1.5 x 60 0 ( KM)) 2 +- 2.0 x 60 0 (...

Ngày tải lên: 08/08/2014, 11:21

... equation 3.3 Two-dimensional flow from a source (or towards a sink) 52 52 52 53 54 56 56 62 62 62 64 64 66 68 68 71 72 73 73 75 76 78 83 83 83 84 85 86 86 87 87 89 ... This equation is F - A = P(;) Hence [ML-'T-2] = [p][LT-'L-'] = /p][T-'] Thus [p] = [ML-lT-'] and the units of p are therefore kgm-ls-l;...

Ngày tải lên: 08/08/2014, 11:21

... 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 ay az (2.47a) (2.47b) 2.4.3 The ... 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 be...

Ngày tải lên: 08/08/2014, 11:21

... (Fig. 3 .6) . Putting the line along the x-axis as $ = 0 128 Aerodynamics for Engineering Students Doublet axis Fig. 3.20 Streamlines due to a doublet - 2c - -x- Fig. 3.21 ... $= =-( (e 1 - 02) m i=z;;P Transposing the equation to Cartesian coordinates: Y , tan 62 = - tanel =- x-c x+c Y Therefore 2CY x2 + y - c2 p =...

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 ... where 6, is the value of 0 corresponding to x = pc. Two-dimensional wing theory 207 -Accurate computation 0 Experimental data Thin-aerofoil theory a 64 panels...

Ngày tải lên: 08/08/2014, 11:21

... 0 .66 688 A7 0.01 163 7 = 0 .66 3 19 A1 f0.98957 A3 - 1.315 95A5 - 1 .64 234 A7 0.02 16 65 = 1.1 15 73 A1 - 0 .67 9 35 A3 - 0.8 96 54 A5 + 2 .68 8 78 A7 0.032998 = 1.343 75 AI - ... - PlTl P2T2 PI441 -P2&2+P1A1 -p2A2+4(p1+p2)(A2-A1) =o (6. 13) (6. 14) (6. 15) (6. 16) a n s M= 0 Fig. 6. 1 One-dimensional isentropic expans...

Ngày tải lên: 08/08/2014, 11:21

... 0.1 0. 16 0.2 0.12 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" 6. 84" 4.57" 0.0 -4 .57" -6 .84" -9 .09" -1 1.31" ... 0.225 0. 163 0.104 0.0008 -0 .0831 -0 .1 166 -0 .1474 -0 .1754 WP)li7l 0.228 0.183 0.138 0.092 0 -0 .098 -0 .138 -0 .183 -0 .228...

Ngày tải lên: 08/08/2014, 11:21

... Aerodynamics for Engineering Students Pi 0.9 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 - 0.4 - 0.3 - - - ... aa - = 4.959 - 8 .60 7 + 3 .65 8j (E) = 3 .65 W Equation (7. 16) gives (1 - 1 .65 j3 + 4.30j2 - 3 .65 J...

Ngày tải lên: 08/08/2014, 11:21

... equations for a, b and c in terms of d, e and f gives a = 4 - 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 ... [(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+...

Ngày tải lên: 08/08/2014, 11:21