Accession Number : AD0716519

Title :   Questions of Pneumonics (Fluid Flow Pneumoautomation),

Corporate Author : FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : Zalmanzon,L. A.

Report Date : 26 OCT 1970

Pagination or Media Count : 12

Abstract : Some general problems of determining the characteristics of jet elements are considered, with emphasis on elements whose operation is based on the simple effect jet interaction in the presence of turbulent flow in both the supply and control channels, and elements in which the flow in the supply channels is turbulent and in the control channels laminar. In the first case it is assumed that the channels have a rectangular cross section and that the jets interact between the parallel walls. In the second case it is assumed that the laminar jet issuing from the given channel consists of a countless number of elementary jets. Expressions are derived describing the dependence of the angle of deflection of the main jet, flow velocity, and gage pressures of the velocity head at various points of the cross section of the resulting jet on control and supply pressures and other quantities determining the operation of the jet element. In addition, deflection of a jet by another jet in the presence of turbulent flow in both channels was studied experimentally. (Author)

Descriptors :   (*FLUIDICS, *REVIEWS), JETS, TURBULENCE, LAMINAR FLOW, INTERACTIONS, CONTROL SYSTEMS, USSR

Subject Categories : Fluidics and Fluerics

Distribution Statement : APPROVED FOR PUBLIC RELEASE