Document Type

Article

Publication Date

11-2015

Keywords

shock tube, area contraction, shockwave

Abstract

The paper presents numerical and experimental study on the effect of area contraction in shock tube facility. The shock tube is the main component of short duration test facility at The Universiti Tenaga Nasional (UNITEN), Malaysia. In the shock tube, a small area contraction in form of a removable bush was facilitated adjacent to the diaphragm section. The flow process was simulated using a two-dimensional time-accurate Navier-Stokes solver. The solver uses second order accurate cell-vertex finite volume spatial discretization and fourth orders accurate Runge-Kutta temporal integration. In this study, the solver was programmed based on the dimensions and configuration of UNITEN’s shock tube facility. The numerical results were validated with experimental data from the ground based test facility. Numerical pressure histories were found to be in accordance with the experimental data. For further investigations, simulations were conducted for different operating conditions. The results showed that shock tube performance in term of producing shock wave and steady gas flow is highly influenced by area contraction in the diaphragm section. The shock wave strength and speed decreased by 18% and 8% respectively.

Faculty

Faculty of Applied Science & Technology (FAST)

Journal

ARPN Journal of Engineering and Applied Sciences

Volume

10

Issue

20

First Page

9614

Last Page

9620

Version

Publisher's version

Peer Reviewed/Refereed Publication

yes

Terms of Use

Terms of Use for Works posted in SOURCE.

Creative Commons License

Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License.

Original Publication Citation

Mohsen, A., Yusoff, M.Z., Alfalahi, A. (2015). Area contraction effect on shock tube performance, numerical and experimental study. ARPN Journal of Engineering and Applied Sciences. 10(20), 9614-9620.

Included in

Engineering Commons

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