Abstract
In this paper, the shock wave propagation in a channel with a micrometric hydraulic diameter is numerically simulated for an initial Mach number \(M_{s}=2.61\). The obtained values of the Mach number along the tube are compared to experimental and numerical data given in the literature. The microscale effects on the flow behavior, such as shock wave attenuation and pressure increase behind the shock wave, are amplified by further reducing the scaling ratio (or Reynolds number) of the flow. This reduction is obtained by either decreasing the hydraulic diameter \(D_\mathrm{H}\) or the initial driven gas pressure \(P_1\). Under these conditions, the flow behavior changes drastically.
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Zeitoun, D.E. Microsize and initial pressure effects on shock wave propagation in a tube. Shock Waves 24, 515–520 (2014). https://doi.org/10.1007/s00193-014-0512-9
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DOI: https://doi.org/10.1007/s00193-014-0512-9