A new technique for detecting shock waves in compressible flow solutions computed by means of shock-capturing solvers is proposed and discussed. This newly developed technique uses the Hough transform and a least squares fit to further post-process the data provided by a classical shock detection technique based on local criteria. This two-steps analysis significantly enhances the quality of the shock lines extracted from numerical solutions; moreover, it allows to correctly recognize the complex shock-wave patterns that arise when the flow solution is characterized by the presence of multiple interacting shocks.

Detection of shock-waves from shock-capturing solutions

BONFIGLIOLI, Aldo
2013-01-01

Abstract

A new technique for detecting shock waves in compressible flow solutions computed by means of shock-capturing solvers is proposed and discussed. This newly developed technique uses the Hough transform and a least squares fit to further post-process the data provided by a classical shock detection technique based on local criteria. This two-steps analysis significantly enhances the quality of the shock lines extracted from numerical solutions; moreover, it allows to correctly recognize the complex shock-wave patterns that arise when the flow solution is characterized by the presence of multiple interacting shocks.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11563/52501
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