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 / Paciorri, Renato; A., Bonfiglioli. - STAMPA. - (2013), pp. 161-170. (Intervento presentato al convegno 11th Meeting on applied scientific computing and tools: grid generation, approximation and visualization tenutosi a Roma - Italy nel 19-21 oct 2011).
Detection of Shock Waves from Shock-capturing Solutions
PACIORRI, Renato;
2013
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.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
