Title: A numerical study in the interaction of blast wave with a wheeled armoured vehicle

Authors: Chang-hsien Tai, Jyh-tong Teng, Shi-wei Lo, Chia-wei Liu

Addresses: Department of Vehicle Engineering, National Pingtung University of Science and Technology, No. 1, Shuehfu Rd., Neipu, Pingtung, Taiwan 91201, ROC. ' Thermal-Fluidic Analysis Laboratory, Department of Mechanical Engineering, Chung Yuan Christian University, No. 200, Jongbei Rd., Jhongli City, Taoyuan 32023, Taiwan, ROC. ' Thermal-Fluidic Analysis Laboratory, Department of Mechanical Engineering, Chung Yuan Christian University, No. 200, Jongbei Rd., Jhongli City, Taoyuan 32023, Taiwan, ROC. ' Department of Vehicle Engineering, National Pingtung University of Science and Technology, No. 1, Shuehfu Rd., Neipu, Pingtung, Taiwan 91201, ROC

Abstract: This study investigates the behaviour of blast waves by employing the finite volume method to solve the associated Euler equations for three-dimensional, time-dependent, inviscid flows. The total variation diminishing (TVD) upwind method is applied. The simulation results of a wheeled armoured vehicle identify the complex phenomena of flow structures, pressure distributions and oscillation of reflected shock waves under the chassis. It is concluded from the results that the intensity of the derived reflected waves could be greater than that of the blast wave. Inappropriate for the flow of thought, the geometry decides the phenomena of flow-field, especially the oscillation of reflected shock waves under the chassis.

Keywords: blast waves; total variation diminishing; TVD upwind method; wheeled armoured vehicles; finite volume method; inviscid flows; simulation; flow structures; pressure distributions; oscillation; reflected shock waves; vehicle design.

DOI: 10.1504/IJVD.2007.013680

International Journal of Vehicle Design, 2007 Vol.45 No.1/2, pp.242 - 265

Published online: 11 May 2007 *

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