Results 31 to 40 of about 17,991 (229)

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

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

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

Spheres, tears, and spears: Regulating the perimeter and circularity of millimeter‐sized alginate hydrogel beads

open access: yesAIChE Journal, EarlyView.
Abstract Generating hydrogel beads pertains to many engineering applications. We examined two alginate‐based fluids at three concentrations of alginate, cAG$$ {c}_{\mathrm{AG}} $$. We used the “Map of Misery” to determine which material property (viscosity, elasticity, and inertia) drives droplet formation.
Conor G. Harris   +5 more
wiley   +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

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

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