Accession Number:

AD0625085

Title:

A HYDRAULIC ANALOG STUDY OF THE HARTMANN OSCILLATOR PHENOMENON,

Descriptive Note:

Corporate Author:

CALIFORNIA UNIV LOS ANGELES DEPT OF ENGINEERING

Personal Author(s):

• Solomon,Louis

Report Date:

1965-10-01

Pagination or Media Count:

69.0

Abstract:

The paper describes the construction of a water channel and its use for the investigation of the hydraulic analog of the Hartmann oscillator problem. Continuous shooting water flow was found to be analogous to supersonic isentropic gas flow a static depth of approximately one quarter-inch of water appeared to be satisfactory with this channel. Measurements were of two types direct measurement of the height of the free surface, and measurement obtained through photographic records. Quantitative agreement between hydraulic jumps and shock waves was not obtained this was not expected due to the theory given in the text. Qualitative features of the flow were reproduced and agreed well with the observations made with the cavity in the air stream. For research purposes, it seems that the most valuable aspect of the hydraulic analogy is its ability to easily present excellent flow visualization of flow phenomena which are not well understood. Furthermore, its usefulness as a teaching aid for the subject of fluid mechanics seems obvious. Author

Descriptors:

• *OSCILLATION
• *JET FLOW
• FLUID MECHANICS
• FLUID DYNAMICS
• HYDRAULICS
• FLOW

Subject Categories:

• Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE