Results 151 to 160 of about 18,084 (210)

A Novel Variable Volume Capillary Microgripper for Micromanipulation in Aqueous Media. [PDF]

Micromachines (Basel)
Mancha-Sánchez E, Serrano-Balbontín AJ, Tejado I, Vinagre BM.   +3 more
europepmc   +1 more source

Mathematical Physics Analysis of Nozzle Shaping at the Gas Outlet from the Aperture to the Differentially Pumped Chamber in Environmental Scanning Electron Microscopy (ESEM). [PDF]

Sensors (Basel)
Maxa J, Neděla V, Šabacká P, Binar T.
europepmc   +1 more source

Digital Twin-Enabled Extrusion Control for High-Fidelity Printing of Polymers. [PDF]

Polymers (Basel)
Chaiprabha K, Sithiwichankit C, Chungsangsatiporn W, Phanomchoeng G, Chancharoen R.   +4 more
europepmc   +1 more source

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Sonic and Subsonic Axisymmetric Nozzle Flows

SIAM Journal on Applied Mathematics, 1999
Summary: The boundary value problems governing compressible, steady, inviscid, axisymmetric flow from a nozzle are formulated and solved numerically. The Legendre, or contact, potential formulation is used in the hodograph plane to determine flows that are at most sonic.
Gilberto Schleiniger
exaly   +3 more sources

An axisymmetric ‘fluidic’ nozzle to generate jet precession

Journal of Fluid Mechanics, 1998
A continuously unstable precessing flow within a short cylindrical chamber following a large sudden expansion is described. The investigation relates to a nozzle designed to produce a jet which achieves large-scale mixing in the downstream field.
Nathan, G., Hill, S., Luxton, R.
openaire   +3 more sources

Elastic-Shakedown Analysis of Axisymmetric Nozzles

Journal of Pressure Vessel Technology, 2003
An investigation of the shakedown behavior of axisymmetric nozzles under internal pressure is presented. The analysis is based on elastic-plastic finite element analysis and Melan’s lower bound shakedown theorem. Calculated shakedown pressures are compared with values from the literature and with the ASME Boiler and Pressure Vessel Code Section VIII ...
Muscat, Martin, Mackenzie, D.
openaire   +2 more sources

Optimization of the profile of axisymmetric components of nozzles

Welding International, 2012
A mathematical model of a turbulent boundary layer, describing the non-stationary non-isothermal flow of an incompressible gas in axisymmetric channels with the heat exchange is constructed. The equations of motion, continuity, and energy; the closing relationships for the coefficients of friction; and the heat transfer at the appropriate boundary ...
G. N. Marchenko, Yu. G. Volodin, O. P. Marfina   +2 more
openaire   +1 more source

Navier-Stokes solutions for an axisymmetric nozzle

17th Joint Propulsion Conference, 1981
Numerical solutions of the Navier-Stokes equations are obtained for an axisymmetric nozzle in a supersonic external flowfield (M^ =1.94, My =3.0, Re^ =2.2xl0). Five jet pressure ratio conditions ranging from a highly overexpanded case that exhibits a Mach disk shock formation to a slightly underexpanded case are solved computationally.
openaire   +2 more sources

Transonic swirling flow in axisymmetric nozzles

Meccanica, 1976
The transonic flow in axisymmetric choked nozzles is computed in the case of a radial distribution of tangential velocity. The flow configuration is obtained by means of a time-dependent technique. The swirling flow is achieved through a particular surface located at the inlet of the nozzle.
openaire   +2 more sources

Axisymmetric nozzles with chamfered contraction

Sensors and Actuators A: Physical, 2017
Abstract Paper discusses experimental results obtained in measurements of essentially incompressible flows in axially symmetric nozzles with inlet entrance shaped as a 45° half-angle chamfering. Interest was concentrated on small, low Reynolds number conditions. Six differently behaving flow regimes, from A to F, were identified. Surprisingly, in the
openaire   +1 more source