On the mechanics of high speed liquid jets
Abstract
Attention is given to the mechanics of high-speed liquid jets in terms of emergence and flight mechanics of a jet flying at speeds which are supersonic relative to the sound speed of the liquid. The question is treated experimentally via an Imacon image converter camera, and theoretically via similarity arguments and the Chaplygin transformation to evaluate liquid overcompression during jet emergence. Taylor instability effects in the jet's flight late time history are discussed along with the effects of Stokes drag on the small liquid-particle shroud around the jet. The hypothesis that subsonic (relative to the liquid sound speed) jets do not undergo the violent decompression process predicted for supersonic jets is tested in an evacuated chamber.
- Publication:
-
Proceedings of the Royal Society of London Series A
- Pub Date:
- October 1977
- DOI:
- 10.1098/rspa.1977.0160
- Bibcode:
- 1977RSPSA.357..143F
- Keywords:
-
- Flow Stability;
- Flow Visualization;
- Hydraulic Jets;
- Supersonic Jet Flow;
- Taylor Instability;
- Compressibility Effects;
- Drag;
- Liquid Flow;
- Fluid Mechanics and Heat Transfer