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Effect of Aft Wall Offset on Supersonic Flow over Cavity

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Fluid Mechanics and Fluid Power – Contemporary Research

Part of the book series: Lecture Notes in Mechanical Engineering ((LNME))

Abstract

A study is conducted on supersonic flow at Mach number 1.65 over rectangular cavity of length-to-depth (L/D) ratio 3. Schlieren visualization revealed normal shock train like pattern in flow over the cavity. These shock structure are unsteady, and oscillated longitudinally inside the test section over the cavity. The oscillating shock train is eliminated, as the blockage produced by shear layer and boundary layer thickening due to pressure recovery in cavity is reduced by offsetting the cavity aft wall. The shock train—shear layer coupling is observed to completely suppress the third and higher modes of cavity oscillations.

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Author information

Authors and Affiliations

  1. Department of Aerospace Engineering, Indian Institute of Space Science and Technology, Trivandrum, 695547, Kerala, India

    Praveen Kumar Maurya, C. Rajeev, R.R. Vinil Kumar &  Aravind Vaidyanathan

Authors
  1. Praveen Kumar Maurya
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  2. C. Rajeev
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  3. R.R. Vinil Kumar
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  4. Aravind Vaidyanathan
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Corresponding author

Correspondence to Aravind Vaidyanathan .

Editor information

Editors and Affiliations

  1. Department of Mechanical Engineering, Indian Institute of Technology Kanpur, Kanpur, Uttar Pradesh, India

    Arun K. Saha

  2. Department of Aerospace Engineering, Indian Institute of Technology Kanpur, Kanpur, Uttar Pradesh, India

    Debopam Das

  3. Department of Civil Engineering, Indian Institute of Technology Kanpur, Kanpur, Uttar Pradesh, India

    Rajesh Srivastava

  4. Department of Mechanical Engineering, Indian Institute of Technology Kanpur, Kanpur, Uttar Pradesh, India

    P. K. Panigrahi

  5. Department of Mechanical Engineering, Indian Institute of Technology Kanpur, Kanpur, Uttar Pradesh, India

    K. Muralidhar

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Maurya, P.K., Rajeev, C., Kumar, R.V., Aravind Vaidyanathan (2017). Effect of Aft Wall Offset on Supersonic Flow over Cavity. In: Saha, A., Das, D., Srivastava, R., Panigrahi, P., Muralidhar, K. (eds) Fluid Mechanics and Fluid Power – Contemporary Research. Lecture Notes in Mechanical Engineering. Springer, New Delhi. https://doi.org/10.1007/978-81-322-2743-4_5

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  • DOI: https://doi.org/10.1007/978-81-322-2743-4_5

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  • Publisher Name: Springer, New Delhi

  • Print ISBN: 978-81-322-2741-0

  • Online ISBN: 978-81-322-2743-4

  • eBook Packages: EngineeringEngineering (R0)

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