Results 31 to 40 of about 18,062 (227)

An axisymmetric similarity solution for viscous-transonic nozzle flow [PDF]

open access: yesJournal of Fluid Mechanics, 1967
An axisymmetric viscous-transonic equation is presented. A nozzle-type similarity solution of this equation has been found, which describes the initial stages in the development of shock waves downstream of a converging-diverging nozzle throat. This solution is an extension of a two-dimensional solution found previously (Sichel 1966). By an appropriate
Sichel, M., Yin, Y. K.
openaire   +2 more sources

Analysis of a Low-Angle Annular Expander Nozzle

open access: yesShock and Vibration, 2015
An experimental and numerical analysis of a low-angle annular expander nozzle is presented to observe the variance in shock structure within the flow field. A RANS-based axisymmetric numerical model was used to evaluate flow characteristics and the model
Kyll Schomberg, John Olsen, Graham Doig
doaj   +1 more source

Statistical modelling for prediction of axis-switching in rectangular jets [PDF]

open access: yes, 2012
Rectangular nozzles are increasingly used for modern military aircraft propulsion installations, including the roll nozzles on the F-35B vertical/short take-off and landing strike fighter.
Bray, D., Knowles, K., Tipnis, T. J.
core   +1 more source

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

Fluidic valve for reactor regeneration flow switching [PDF]

open access: yes, 2004
An unusual and in many respects advantageous no-moving-part valve is described,developed for switching fluid flows in a through-flow reactor that requires a periodic regeneration by temporary replacement of the process fluid by another, regeneration ...
Perera   +19 more
core   +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

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

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