Accession Number:

AD0649558

Title:

ON THE SHOCK TRANSITION, THE HYDRAULIC JUMP, AND VORTEX BREAKDOWN.

Descriptive Note:

Technical rept.,

Corporate Author:

CALIFORNIA INST OF TECH PASADENA DIV OF ENGINEERING AND APPLIED SCIENCE

Personal Author(s):

Report Date:

1967-03-01

Pagination or Media Count:

32.0

Abstract:

The normal shock, hydraulic jump, and vortex breakdown have a common feature they are all marked by a transition from a supercritical to a subcritical flow state. These phenomena are due to the nonlinearity of the flow, and it is shown that viscosity also plays an essential role. The paper demonstrates explicitly how viscosity enters into these flows. The treatment of normal shock served a starting illustration. Then an equation governing the phenomenon of hydraulic jump is derived with the inclusion of the effect of viscosity. It is explicitly shown that supercritical flow is not stable and has to go through a transition to a conjugate subcritical flow state downstream. Similar treatment is also applied to vortex breakdown with largely similar results. Author

Subject Categories:

  • Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE