10.2021.383.388

Analysis of Shock Wave Propagation in Micro Tubes Using CFD Tool

Author(s):

Shreyas V Lokhande*, A V Deshpande

Affiliation(s):

Mechanical Engineering Department, VJTI Mumbai, India

Corresponding Author Email: svlokhande_p18@me.vjti.ac.in

This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Recent investigations on the propagation of shock wave at microscales conclude that the viscosity effects and heat conduction at wall become significant at microscales. Due to these reasons, significant shock wave attenuation is observed during the numerical and experimental investigations of propagation of the shock wave at microscales. Recent investigations focused on the nature of post-shock flow in micro-ducts. Present numerical work assumes turbulent post-shock flow for shock wave propagation in microtubes. We conducted simulations using the Navier-Stokes equations where the wall was considered without slip. To introduce the shock in the macro-channel, we applied Rankine-Hugoniot relations, and then the wave propagates through the micro-channel. The space-time plots of shock propagation in micro-channels of different cross-sections are determined numerically. Numerical results suggest the existence of turbulent post-shock flow at micro-scales in agreement with the recent experimental work.