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While deriving the Doppler formula for the observed frequency of a sound wave, it is assumed that the speed of sound in the medium is greater than the source's speed through it. When this condition is breached, a shock wave occurs.
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Related Experiment Video

Updated: May 3, 2026

Evaluating Primary Blast Effects In Vitro
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A cylindrical converging shock tube for shock-interface studies.

Xisheng Luo1, Ting Si1, Jiming Yang1

  • 1Advanced Propulsion Laboratory, University of Science and Technology of China, Hefei 230026, China.

The Review of Scientific Instruments
|February 13, 2014
PubMed
Summary

A novel shock tube facility generates cylindrical converging shock waves. This new method enables detailed study of shock-interface interactions, proving effective for fluid dynamics research.

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Area of Science:

  • Fluid Dynamics
  • Shock Wave Phenomena
  • Experimental Physics

Background:

  • Shock waves are fundamental in various physical phenomena.
  • Controlling shock wave geometry is crucial for advanced studies.
  • Existing facilities may lack capabilities for specific shock wave dynamics.

Purpose of the Study:

  • To develop and validate a shock tube facility capable of generating cylindrical converging shock waves.
  • To investigate shock-interface interactions using the developed facility.
  • To provide a reliable experimental platform for studying converging shock dynamics.

Main Methods:

  • Designing a specific wall profile in a shock tube based on shock dynamics theory.
  • Utilizing experimental measurements and numerical simulations to analyze shock wave behavior.
  • Employing a membrane-less gas cylinder and laser sheet visualization for shock-interface interaction studies.

Main Results:

  • Successful generation of a cylindrical converging shock wave with a perfect circular shock front.
  • Experimental and numerical data confirm the converging effect on shock strength over time.
  • Demonstrated convenience and reliability of the facility for shock-interface interaction experiments.

Conclusions:

  • The developed shock tube facility is feasible and reliable for generating cylindrical converging shock waves.
  • The facility provides a valuable tool for investigating complex shock-interface interactions.
  • This research advances the capabilities for experimental fluid dynamics research involving shock waves.