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Compressible flow in front of an axisymmetric blunt object

2014/12/29 by Uri Keshet, Keshet, Uri, Yossi Naor +1
Earth and Planetary Sciences · Engineering · #Aquatic and Environmental Studies #FOS: Physical sciences #Fluid Dynamics (physics.flu-dyn) #Geotechnical and Geomechanical Engineering #Instrumentation and Methods for Astrophysics (astro-ph.IM)

paper · pdf · doi:10.48550/arxiv.1412.8406

openalex publication_date 2014/12/29 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

Compressible flows around blunt objects have diverse applications, but present analytic treatments are inaccurate and limited to narrow parameter regimes. We show that the flow in front of an axisymmetric body is accurately derived analytically using a low order expansion of the perpendicular gradients in terms of the parallel velocity. This reproduces both subsonic and supersonic flows measured and simulated for a sphere, including the transonic regime and the bow shock properties.

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