Abstract
This is a preliminary study of shock wave attenuation over arrays of cylinder and spheres. Firstly shock wave propagation over a single cylinder was investigated experimentally and numerically. Secondly the result was extended to shock wave attenuation over arrays of cylinders and spheres. The experiment was conducted in a 60 mm X 150 mm diaphragmless shock tube equipped with double exposure holographic interferometry. Numerical simulations were carried out by using a finite volume, Euler and Navier-Stokes solvers. A higher degree of reproducibility of the shock tube enabled to conduct sequential experiments under identical initial conditions by successively varying delay time so as to rearrange the visualized images in animated display. Good agreement was obtained between the experiment and numerical result.
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