Date of Award
Spring 1975
Document Type
Thesis
Department
Mechanical & Aerospace Engineering
Program/Concentration
Mechanical Engineering
Committee Director
Robert Ash
Committee Member
D. S. Ousterhout
Committee Member
J. M. Kuhlman
Call Number for Print
Special Collections; LD4331.E56L58
Abstract
A study of the influence of a solid center body on lift loss and pitching moment has been conducted. It has been well established that a round free jet emitted from a flat plate at right angles to a cross flow causes an induced pressure distribution on the plate which adversely affects the lift and pitching stability of the flat plate.
This investigation has employed a 2.58 - cm diameter round jet with a 1.91 - cm diameter solid rounded core in order to modify the induced flow field and attempt to reduce the lift loss and pitching moment. Preliminary results on influence of centerbody location on the induced surface pressure distribution are presented for four different cross flow - jet velocity combinations. These data indicate that lift loss and pitching moment can be favorably changed only under very specific plug location, velocity ratio conditions. Recommendations have been made for further parametric studies which are required to permit optimization (minimization) of the lift loss and pitching moment condition.
Rights
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DOI
10.25777/eqf0-ny24
Recommended Citation
Livingston, Danny K..
"An Experimental Investigation of a Cold Jet with Solid Centerbody Emitting from a Flat Plate Into a Subsonic Free Stream"
(1975). Thesis, Old Dominion University, DOI: 10.25777/eqf0-ny24
https://digitalcommons.odu.edu/mae_etds/600