Results 21 to 30 of about 79,452 (304)

Occurrence-Time-Ratio Measurements on Air Entrainment in a Suction Sump

open access: yesTRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B, 2008
In order to get accurate measurements of air entrainment in a suction sump, we design a new and simple conductance-type electric bubble sensor, which can detect the existence of air bubbles inside a suction pipe with no disturbances by the sensor probe and with a fine spatial resolution. We focus on occurrence-time ratio γ of the air entrainment,
Katsuya HIRATA   +4 more
openaire   +5 more sources

Experimental Performance of a Two-Phase Ejector: Nozzle Geometry and Subcooling Effects

open access: yesInventions, 2020
This paper presents the results of an experimental study on a two-phase ejector. The main objective is to assess the effects of the nozzle’s divergent and the throat diameter on performance under various working conditions.
Khaled Ameur   +2 more
doaj   +1 more source

Numerical Investigation on the Performance of Two-Throat Nozzle Ejectors with Different Mixing Chamber Structural Parameters

open access: yesEnergies, 2021
In this study, the effects of the mixing chamber diameter (Dm), mixing chamber length (Lm) and pre-mixing chamber converging angle (θpm) were numerically investigated for a two-throat nozzle ejector to be utilized in a CO2 refrigeration cycle.
Fatong Jia, Dazhang Yang, Jing Xie
doaj   +1 more source

Turbulent mixing layers in supersonic protostellar outflows, with application to DG Tauri [PDF]

open access: yes, 2015
Turbulent entrainment processes may play an important role in the outflows from young stellar objects at all stages of their evolution. In particular, lateral entrainment of ambient material by high-velocity, well-collimated protostellar jets may be the ...
Bicknell, Geoffrey V.   +4 more
core   +3 more sources

Analytical and Numerical Study on the Performance of ‎Supersonic Ejector at Different Operating Conditions ‎and Working Fluids

open access: yesJournal of Applied Fluid Mechanics, 2021
The computation of ejector geometry for a given fluid is essential and plays a crucial role in creating an ejector profile and performance analysis.
S. K. Yadav, K. M. Pandey, R. Gupta
doaj  

Optimization of Two-Phase Ejector Mixing Chamber Length under Varied Liquid Volume Fraction

open access: yesEntropy, 2022
The ejector performance varies with the mixing chamber length which is largely dependent on the fluid liquid volume fraction at the inlet. In this study, numerical simulations are conducted to optimize two mixing chamber lengths of a two-phase ejector ...
Jia Yan   +3 more
doaj   +1 more source

KAJI EKSPERIMENTAL PENGARUH ANGLE MIXING CHAMBER TERHADAP UNJUK KERJA STEAM EJECTOR REFRIGERATION

open access: yesSimetris: Jurnal Teknik Mesin, Elektro dan Ilmu Komputer, 2013
Abstrak Sistem steam ejector refrigeration merupakan siklus refrigerasi dengan memanfaatkan energi yang terbuang. Siklus steam ejector refrigeration menggunakan fluida air sebagai refrigeran sehingga lebih ramah lingkungan, selain itu sistem steam ...
Bachtiar Setya Nugraha
doaj   +1 more source

Isolating the effects of moisture entrainment on convectively coupled equatorial waves in an aquaplanet GCM [PDF]

open access: yes, 2018
The rate of humidity entrainment in the convective parametrization scheme in a general circulation model affects the simulation of convectively-coupled waves.
Methven, John   +2 more
core   +2 more sources

Effect of geometrical factors interactions on design optimization process of a natural gas ejector

open access: yesAdvances in Mechanical Engineering, 2019
Enhancing the ejector entrainment ratio plays an important role in the ejector performance. In this article, a surrogate-based optimization approach along with computational fluid dynamics technique has been employed to optimize the entrainment ratio of ...
Amin Hassan Amin   +3 more
doaj   +1 more source

On density effects and large structure in turbulent mixing layers [PDF]

open access: yes, 1974
Plane turbulent mixing between two streams of different gases (especially nitrogen and helium) was studied in a novel apparatus. Spark shadow pictures showed that, for all ratios of densities in the two streams, the mixing layer is dominated by large ...
Brown, Garry L., Roshko, Anatol
core   +1 more source

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