Hostname: page-component-78c5997874-8bhkd Total loading time: 0 Render date: 2024-11-19T13:35:23.939Z Has data issue: false hasContentIssue false
  • English
  • Français

The use of schlieren and shadowgraph techniques in the study of flow patterns in density stratified liquids

Published online by Cambridge University Press:  28 March 2006

D. E. Mowbray
D. E. Mowbray
Affiliation:
Department of the Mechanics of Fluids, University of Manchester Present address: Royal Aircraft Establishment, Bedford, England.
Get access Rights & Permissions [Opens in a new window]

Abstract

Various methods of establishing fluid media stably stratified in either temperature or the concentration of a foreign constituent are compared. A method used to construct a salt solution with precisely predetermined stratification is described. The Euler-Lagrange equations are solved exactly for a medium whose refractive index varies linearly in one dimension; the solution shows that a schlieren system may be used. For media with non-linear one-dimensional variation of refractive index, a modified shadowgraph technique may be employed. A device for the quantitative evaluation of a one-dimensional stratification is outlined and an example of its use is given.

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 27 , Issue 3 , 24 February 1967 , pp. 595 - 608
Copyright
© 1967 Cambridge University Press

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Beams, J. W. 1955 Shadow and Schlieren Methods. High Speed Aerodynamics and Jet Propulsion. 9, 22–44. Oxford University Press.
Ellison, T. H. & Turner, J. S. 1959 J. Fluid Mech. 8, 514.
Ellison, T. H. & Turner, J. S. 1960 J. Fluid Mech. 8, 529.
Lamm, O., Svedberg, T. & Peterson, P. O. 1939 The Ultracentrifuge. Oxford University Press.
Mowbray, D. E. & Rarity, B. S. H. 1967 (To be published.)
Webster, C. A. G. 1964 J. Fluid Mech. 19, 221.