Numerical simulation of high peak overpressure blast wave through shock tube and its interaction with a rectangular object

被引：11

作者：

Thangadurai, Murugan ^{[1
]}

Kundu, Abhishek ^{[2
]}

Sandhu, Inderpal Singh ^{[3
]}

Das, Moloy Narayan ^{[1
]}

机构：

[1] CSIR Cent Mech Engn Res Inst, Aerosyst Lab, Durgapur 713209, West Bengal, India

[2] Motilal Nehru Natl Inst Technol Allahabad, Dept Appl Mech, Allahabad 211004, Uttar Pradesh, India

[3] Terminal Ballist Res Lab, Sect 30, Chandigarh 160030, India

来源：

EUROPEAN JOURNAL OF MECHANICS B-FLUIDS | 2023年 / 97卷

关键词：

Blast wave; Shock tube; Navier-Stokes solver; Compressible vortex ring; Blast wave attenuation; STABILITY;

D O I：

10.1016/j.euromechflu.2022.10.007

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

The generation of high peak overpressure (>10 bar) blast wave inside the shock tube and its interaction with a rectangular object is examined in this paper using the in-house developed multi-component Navier-Stokes solver. It is difficult to generate these peak overpressure blast waves in the laboratory due to aerodynamic noise and strong reflected blast waves. Driver and driven section lengths of the shock tube are 0.8 m and 6 m respectively. A blast wave with a non-dimensional peak overpressure of 11.65 is generated inside the shock tube using helium as the driver section gas with a diaphragm pressure ratio of 57. The peak overpressure and pressure histories obtained from simulations are validated with shock tube experiments and found to be matching closely. Next, the development of a strong trailing jet after diffraction of the blast wave at the shock tube exit is studied. Finally, the interaction of blast wave with a rectangular object is studied using numerical schlieren images, line plots of pressure and density.(c) 2022 Elsevier Masson SAS. All rights reserved.

引用

页码：162 / 172

页数：11

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