On the formation of Friedlander waves in a compressed gas driven shock tube
Name
891583310-MIT.pdf
Description
Full printable version
Size
4.64 MB
Format
Adobe PDF
Checksum (MD5)
4144443728a6a47e9007f9756165a153
Author(s)
Tasissa, Abiy (Abiy Fekadu)
Advisor(s)
Raúl Radovitzky.
Date Issued
2014
Publisher
Massachusetts Institute of Technology
Abstract
Compressed gas driven shock tubes have become popular as a laboratory-scale replacement for field blast tests. The well-known initial structure of the Riemann problem eventually evolves into a shock structure resembling a Friedlander wave. In this thesis, we develop an analytical model to predict its key characteristics: location where the wave first forms, peak over-pressure, decay time and impulse. The approach is based on combining the solutions of the two different types of wave interactions that arise in the shock tube after the family of rarefaction waves in the Riemann solution interacts with the closed end of the tube. The results of the analytical model are verified against numerical simulations obtained with a finite volume method. The model furnishes a rational approach to relate shock tube parameters to desired blast wave characteristics, and thus constitutes a useful tool for the design of shock tubes for blast testing.
Description
Thesis: S.M., Massachusetts Institute of Technology, Department of Aeronautics and Astronautics, 2014.
Cataloged from PDF version of thesis.
Includes bibliographical references (pages 71-73).
Subjects
Aeronautics and Astronautics.
MIT Department
Massachusetts Institute of Technology. Department of Aeronautics and Astronautics
Terms of Use
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