Hostname: page-component-76fb5796d-r6qrq Total loading time: 0 Render date: 2024-04-26T12:37:11.066Z Has data issue: false hasContentIssue false
  • English
  • Français

Inclined buoyant puffs

Published online by Cambridge University Press:  28 March 2006

J. M. Richards
J. M. Richards
Affiliation:
Department of Electrical Engineering, Loughborough University of Technology
Get access Rights & Permissions [Opens in a new window]

Abstract

The motion of puffs which move in the direction of the buoyancy force was considered in a previous paper (Richards 1965). We now consider cases in which the directions of motion and of buoyancy are inclined or opposed. The main assumption is that the distributions of velocity inside the puffs are similar throughout the motion. Although this assumption is thought to be accurate only when the surroundings are neutral, we have reason to think that the same assumption may sometimes be used as an approximation to the internal distribution of velocity in other types of environment.

The particular case of motion when the buoyancy force is constant is calculated in detail. The calculations are supported by observations from new laboratory experiments.

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 32 , Issue 4 , 18 June 1968 , pp. 681 - 692
Copyright
© 1968 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

Lamb, H. 1932 Hydrodynamics, 6th edn. Cambridge University Press.
Richards, J. M. 1961 Experiments on the penetration of an interface by buoyant thermals J. Fluid Mech. 11, 369–84.Google Scholar
Richards, J. M. 1963 Experiments on the motions of isolated cylindrical thermals through unstratified surroundings Int. J. Air Water Pollution, 7, 17–34.Google Scholar
Richards, J. M. 1965 Puff motions in unstratified surroundings J. Fluid Mech. 21, 97–106.Google Scholar
Scorer, R. S. 1957 Experiments on convection of isolated masses of buoyant fluid J. Fluid Mech. 2, 583–94.Google Scholar
Woodward, B. 1959 The motion in and around isolated thermals Quart. J. Roy. Met. Soc. 85, 144–51.Google Scholar