Paper
1 February 1989 Holographic Interferometric Observation Of Shock Tube Flows
K. Takayama, M. Izumi, K Itoh, H. Sugiyama
Author Affiliations +
Abstract
It is shown that holographic interferometry has an enormous versatility for gasdynamics applicationsl, 2 especially for the shock tube research. The present paper reports recent results of the holographic interferometric shock tube experiment which was conducted in the Institute of High Speed Mechanics, Tohoku University. The experiment was conducted in 60 mm X 150 mm and 30 mm X 40 mm shock tubes equipped with a pulsed laser holographic interferometry. Two topics were presented here, (1) existence of the dust free region and vortex generation over a circular cylinder in a dusty gas shock tube for shock Mach number of 1.3 and 2.2 in air, and (2) interaction of shock waves with vortices which were generated over a 20 mm circular cylinder and at the leading edge of a splitter plate. These models were placed in the 60 mm X 150 mm shock tube for shock Mach number of 1.5 and 2.5. In the dusty gas shock tube flow, the generation of the the dust free region over the cylinder was clarified. The experimental results of shock propagation over cylinders were also compared with the numerical simulation using the TVD finite difference scheme3 applied to the Navier-Stokes equations. Very good agreement was obtained between the interferogram and the numerical simulation. Unsteady shock boundary-layer interaction processes and the formation of the vortices were clearly observable. Consequently, it is emphasized that only hologarphic interferograms can give a direct validations for the recently developing numerical schemes by comparing them with the experimental isopycnics.
© (1989) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
K. Takayama, M. Izumi, K Itoh, and H. Sugiyama "Holographic Interferometric Observation Of Shock Tube Flows", Proc. SPIE 0981, High Speed Photography, Videography, and Photonics VI, (1 February 1989); https://doi.org/10.1117/12.948685
Lens.org Logo
CITATIONS
Cited by 1 scholarly publication.
Advertisement
Advertisement
RIGHTS & PERMISSIONS
Get copyright permission  Get copyright permission on Copyright Marketplace
KEYWORDS
Holographic interferometry

Numerical simulations

Beam splitters

Holograms

High speed photography

Photonics

Mirrors

RELATED CONTENT


Back to Top