내장 카티지안 경계법과 파동전파 알고리즘을 사용한 충격파 집속 현상의 수치적 시뮬레이션 NUMERICAL SIMULATION OF SHOCK FOCUSING PHENOMENON BY CARTESIAN EMBEDDED BOUNDARY METHOD AND WAVE PROPAGATION ALGORITHM

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Shock-focusing concave reflectors can have parabolic, circular or elliptic cross-sections. They produce effectively a very high pressure at the focusing point. In the past, many optical images have been obtained on shock focusing via experiments. Measurement of field variables is, however, difficult in the experiment. Using the wave propagation algorithm and the Cartesian embedded boundary method, we have successfully obtained numerical Schlieren images that appear very much like the experimental results. In addition, we obtained the detailed field variables such as pressure, velocity, density and vorticity in the unsteady domain. The present numerical results have made it possible to understand the shock focusing phenomenon in more detail than before.
Publisher
한국전산유체공학회
Issue Date
2010-06
Language
Korean
Citation

한국전산유체공학회지, v.15, no.2, pp.14 - 20

ISSN
1598-6071
URI
http://hdl.handle.net/10203/96359
Appears in Collection
AE-Journal Papers(저널논문)
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