THE EFFECT OF FLOW BOUNDARIES UPON CAVITY FLOW AROUND A CYLINDER,
Abstract
The reduction of experimental data characterizing cavity flow-around of a cylinder in a straight working chamber of a hydrodynamic tube to conditions of flow-around by a flow of infinite width with the help of the equivalent velocity found from the equation of continuity can lead to errors in determining these parameters. The cause of these errors is that the increment of equivalent velocity along the profile of the model of a cylinder is nonuniform and, besides the effect of the flow boundaries, it is also subjected to the effect of the stage of cavitation development, i.e., to changes in the form and dimensions of the cavitation zone depending upon the cavitation number. The true magnitude of the correction can be determined only as a result of a series of tests with different constriction of the flow by the models at identical Reynolds numbers and cavitation stages by the method of extrapolation. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 11, 1966
- Accession Number
- AD0626973
Entities
People
- K. K. Shalnev
Organizations
- National Air and Space Intelligence Center