Investigation of high density gradients flows by pulsed digital holographic interferometry

Jean-Michel Desse,François Olchewsky,Zacaria Essaïdi,F Nicolas,David Donjat,Frédéric Champagnat,Fredrich Leopold,Frédérique Jagusinski,Daniel Klatt,Pascal Picart

Investigation of high density gradients flows by pulsed digital holographic interferometry

2016

Jean-Michel Desse
François Olchewsky
Zacaria Essaïdi
F Nicolas
David Donjat
Frédéric Champagnat
Fredrich Leopold
Frédérique Jagusinski
Daniel Klatt
Pascal Picart

Pulsed digital holographic interferometry is developed for analyzing high density gradients encountered in transonic and supersonic flows. Three different cases are presented: free supersonic jet, unsteady wake flows around cone and spike at Mach 2.

Keywords:

Interference (wave propagation)
Supersonic speed
Spatial frequency
Mach number
Transonic
Wake
Classical mechanics
Holographic interferometry
Optics
Physics
Electronic speckle pattern interferometry
Phase (waves)

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