Results 31 to 40 of about 17,927 (212)

Comparison of synthetic jet actuators based on sharp-edged and round-edged nozzles

open access: yesEPJ Web of Conferences, 2017
Axisymmetric synthetic jet actuators based on a loudspeaker and on two types of flanged nozzles were tested and compared experimentally. The first type of the nozzle was a sharp-edged circular hole.
Kordík J., Trávníček Z.
doaj   +1 more source

Aerodynamic Design of a Laval Nozzle for Real Gas Using Hodograph Method

open access: yesAerospace, 2018
We propose an approach for the design of the subsonic part of plane and axisymmetric Laval nozzles for real gases. The proposed approach is based on the hodograph method and allows one to solve the inverse design problem directly.
Aleksandr Chikitkin   +3 more
doaj   +1 more source

Effect of Nozzle Exit Geometry on the Development of Turbulent jets

open access: yesJournal of King Saud University: Engineering Sciences, 1994
Results are presented for some features of the structure of turbulent free jets issuing from an equilateral triangular nozzle and from a sharp-edged square nozzle with the same cross-sectional area.
A. Seif, M. Zedan, A. Shibl
doaj   +1 more source

Numerical simulation of the dimensional transformation of atomization in a supersonic aerodynamic atomization dust-removing nozzle based on transonic speed compressible flow

open access: yesInternational Journal of Coal Science & Technology, 2020
To simulate the transonic atomization jet process in Laval nozzles, to test the law of droplet atomization and distribution, to find a method of supersonic atomization for dust-removing nozzles, and to improve nozzle efficiency, the finite element method
Tian Zhang   +5 more
doaj   +1 more source

Novel Nozzle Shapes for Synthetic Jet Actuators Intended to Enhance Jet Momentum Flux

open access: yesActuators, 2018
An axisymmetric synthetic jet actuator based on a loudspeaker and five types of flanged nozzles were experimentally tested and compared. The first (reference) type of nozzle was a common sharp-edged circular hole. The second type had a rounded lip on the
Jozef Kordík, Zdeněk Trávníček
doaj   +1 more source

Jet flow issuing from an axisymmetric pipe-cavity-orifice nozzle

open access: yesEPJ Web of Conferences, 2016
An axisymmetric air jet flow is experimentally investigated under passive flow control. The jet issues from a pipe of the inner diameter and length of 10 mm and 150 mm which is equipped with an axisymmetric cavity at the pipe end.
Broučková Zuzana   +3 more
doaj   +1 more source

Transonic Flow Field Analysis of a Minimum Nozzle Length Rocket Engine [PDF]

open access: yesINCAS Bulletin
The aim of this paper is to develop a profile of axisymmetric minimum length nozzle giving a uniform and parallel flow at the exit section. The study is done at high temperature, lower than the dissociation threshold of the molecules.
Omar ABADA, Hakim KBAB, Sidali HAIF
doaj   +1 more source

Characteristics of Oscillation in Cavity of Helmholtz Nozzle Generating Self-excited Pulsed Waterjet

open access: yesChinese Journal of Mechanical Engineering, 2022
Cavity flow oscillations in the axisymmetric cavity are critical to the operating efficiency of self-excited pulsed waterjets, which are widely employed in many practical applications.
Miao Yuan   +4 more
doaj   +1 more source

Digital program analyzes supersonic flow field within bell-shaped rocket nozzles [PDF]

open access: yes, 1970
Digital computer program computes and analyzes supersonic flow field in axisymmetric rocket nozzle for specified gas properties, nozzle geometry, and input or starting line.
Elliott, J. J., Stromsta, R. R.
core   +1 more source

Mean flow stability analysis of oscillating jet experiments [PDF]

open access: yes, 2014
Linear stability analysis is applied to the mean flow of an oscillating round jet with the aim to investigate the robustness and accuracy of mean flow stability wave models.
Oberleithner, Kilian   +2 more
core   +2 more sources

Home - About - Disclaimer - Privacy