Accession Number : AD0851930

Title :   An Experimental Study of the Magnitude and Direction of Lateral Thrust Developed by a Three-Dimensional Coanda Nozzle.

Descriptive Note : Master's thesis,

Corporate Author : AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING

Personal Author(s) : Baird, James

Report Date : MAR 1969

Pagination or Media Count : 63

Abstract : A pendulum stagnation chamber and lateral thrust measuring system were used to experimentally determine the magnitude and direction of the lateral thrust developed by a three-dimensional Coanda Nozzle. The study included an investigation of thrust vector control (jet-switching) using parallel injection of a secondary fluid jet. Several nozzle configurations were tested to determine the effect of pressure ratio Po/Pa and setback ratio on lateral thrust and jet-switching performance. Pressure ratio was varied from 1.7 to 7.63 for a setback ratio range of 4 to 10.24. Lateral to theoretical axial thrust ratios of 0.23 were achieved. (Author)

Descriptors :   (*NOZZLE GAS FLOW, COANDA EFFECT), NOZZLE INSERTS, THREE DIMENSIONAL FLOW, EXHAUST NOZZLES, SECONDARY INJECTION, STAGNATION POINT, THRUST, NOZZLE AREA RATIO, DATA PROCESSING, THRUST VECTOR CONTROL SYSTEMS, THESES.

Subject Categories : Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE