Abstract

Shock standoff distance was experimentally calculated over spherical bodies of three different radii in the velocity range of 1–2 km/s. Experiments were carried out in a conventional hypersonic shock tunnel for different conditions with air as the test gas. Images were obtained using schllieren flow visualization which were analyzed to calculate shock standoff distance. Results obtained were compared with the existing empirical correlations and were found to match. Additional computational analysis was carried out in an in-house CFD code HiFUN and the results were again seen to match with the experiments.

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