A theoretical analysis of jet deflection from plane and axisymmetric curved obstacles.
Hiriart Le-Bert, Gerardo
MetadataShow full item record
A class of analytical and numerical solutions to the problem of inviscid-jet deflection from plane and axisymmetric concave surfaces are presented. The methods of solution for the two-dimensional cases included a novel method developed in the present investigation, as well as those due to Levi-Civita and Riemann and Hilbert. These methods have provided indirect solutions for the shape of the curved solid boundary in terms of a given jet-departure and jet-deflection angle. The axisymmetric cases, namely, the deflection of axisymmetric jets from hemispherical thrust reversers are solved directly through the use of the finite element method and a novel iteration scheme. The real-fluid effects on the jet deflection are estimated by comparing the results with those obtained experimentally. The analytical and numerical methods developed or used herein are sufficiently general to yield direct and indirect solutions for more general nozzle and curved-reverser combinations of special interest to thrust reversal on aircraft engines.
RightsCopyright is reserved by the copyright owner
Showing items related by title, author, creator and subject.
Radko, Timour (2008);This study explores the interaction of two nearly axisymmetric two-dimensional vortices using a combination of numerical simulations and analytical arguments. We consider isolated or ‘shielded’ eddies, characterized by ...
Rauch, Charles F. (Monterey, California: Naval Postgraduate School, 1957., 1957);Until the advent of the high-speed computer, engineers have spent untold hours with monotonous and lengthy computations when they have attempted analytical solutions of piping flexibility for even moderately simple ...
Peterson, Kristofer A. (Monterey, California. Naval Postgraduate School, 2008-06);The study of weapon delivery probabilities has historically been focused around analytical solutions and approximations for weapon delivery accuracy and effectiveness calculations. With the relatively recent increase in ...