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Zienkiewicz O.C., Taylor R.L. Vol. 3. The finite - tiera.ru

Zienkiewicz O.C., Taylor R.L. Vol. 3. The finite - tiera.ru

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184 Compressible high-speed gas ¯ow<br />

imposed. <strong>The</strong> elongation of the mesh along the discontinuity is clearly shown. <strong>The</strong><br />

solution was remeshed after the iterations nearly reached a steady state.<br />

In Fig. 6.8 a somewhat more complex example of hypersonic ¯ow around a blunt,<br />

two-dimensional obstacle is shown. Here it is of interest to note that:<br />

Analysis<br />

22°<br />

domain<br />

(a) Sequence of meshes employed<br />

(b) <strong>The</strong> corresponding density<br />

(c) <strong>The</strong> corresponding pressure contours<br />

Flow<br />

velocity<br />

Fig. 6.8 Hypersonic ¯ow past a blunt body 11 at Mach 25, 228 angle of attack. Initial mesh, nodes: 547,<br />

elements: 978; ®rst mesh, nodes: 383, elements: 696; ®nal mesh, nodes: 821, elements: 1574.

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