Title

A Laser Interferometer for Combustion, Aerodynamics and Heat Transfer Studies

Document Type

Article

Publication Date

10-1972

Publication Source

Journal of Physics E: Scientific Instruments

Abstract

A large-area interferometer is described which is based on schlieren system and designed to be used subtractively by a double exposure method. The beam is split using front and rear surface reflections from a small-angle prism. On the double exposure interferogram both the fringe spacing and shear are variable. The aim is to subtract not only aberrations and windows, but principally end-effects, which otherwise introduce disproportionately large errors in the study of hot test objects. To this end burners and heated pipes of different lengths, but identical in every other respect, are used. Various methods of subtraction are discussed and illustrated by examples taken from a study of the effect of electric fields on heat transfer from flame gases.

Inclusive pages

1018-1020

ISBN/ISSN

0950-7671

Comments

Permission documentation is on file.

Publisher

IOP Publishing

Volume

5

Issue

10

Peer Reviewed

yes