Question

Can someone please sketch the wave diagram and possible explain the procedure of the calculations more clearly then the text book solution.

For the shock tube in Prob. 7.10, the lengths of the driver and driven sections are 3 and 9 m, respectively. On graph paper, plot the wave diagram (xt diagram) showing the wave motion in the shock tube, including the incident and reflected shock waves, the contact surface, and incident and reflected expansion waves. To construct the nonsimple region of the reflected expansion wave, use the method of characteristics as outlined in Sec. 7.6. Use at least four characteristic lines to define the incident expansion wave, as shown in Fig. 7.16 Figure 7.16 Reflected expansion wave on an xt diagram. Simple region Reflected wave Nonsinple region Sanple region Incident wave

Answer 1

o S Form Table A.2 Table A T, Sec W: MS

2. dt 2 ec The contact , 84x-face 彷moving ag-the Veloci dit

X2)Sec dt Pu Hente = (0-U26) O. 286 : 0-7836 6

347.2 dt

1 y- mlsec 263-2 O -b 70 319.2 200

Tue- м/дес 19.2 dt

cix dt (113 24-2) C. cd d t dc Fox Poit

31t 2 Sec dl 2 dt For porut 1s1b 292m

3 uta ( a Far pott :-o. 2. @t. (4兆) O.M

CTS it dh 2 59-2 The values u and a ate mou beeh ottoined at al ep have been Caleulaes so Tha i ace