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http://dx.doi.org/10.3795/KSME-B.2017.41.9.615

Effects of the Length and Diameter of Shock Tube on the Shock Train Phenomenon  

Kim, Dong Wook (Dept. of Mechanical Engineering, Andong Nat'l Univ.)
Kim, Tae Ho (Dept. of Mechanical Engineering, Andong Nat'l Univ.)
Yoon, Young Bin (Dept. of Mechanical and Aerospace Engineering, Seoul Nat'l Univ.)
Kim, Heuy Dong (Dept. of Mechanical Engineering, Andong Nat'l Univ.)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.41, no.9, 2017 , pp. 615-622 More about this Journal
Abstract
A normal shock wave is initially formed in the shock tube that migrates towards the closed end of the tube, which, in turn, leads to the reflection of shock. Due to the interaction of the reflected shock with the boundary layer, bifurcation of the shock wave takes place. A shock train will be generated after the bifurcated shock wave approaches the contact surface. Until now, only a few studies have been conducted to investigate this shock train phenomenon inside the shock tube. For the present study, a CFD analysis has been performed on a two dimensional axisymmetric model of a shock tube using unsteady, compressible Navier-Stokes equations. In order to investigate the detailed characteristics of the shock train phenomenon, quantitative studies have been performed by varying shock tube length, diameter under fixed diaphragm, and pressure ratio inside a shock tube.
Keywords
Shock Tube; Reflected Shock Wave; Shock Train; Boundary Layer Separation; Contact Surface;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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