Journal ArticleDOI
Effect of Geometric Configurations on the Starting Transients in Vacuum Ejector
R. Arun Kumar,G. Rajesh +1 more
TLDR
In this article, the starting transients in vacuum ejector and its dependence on various geometric configurations were investigated, and various geometric parameters were the ratio of diffuser to priors were investigated.Abstract:
This paper investigates the starting transients in vacuum ejector and its dependence on various geometric configurations. Various geometric parameters investigated were the ratio of diffuser to pri...read more
Citations
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Journal ArticleDOI
Starting transients in second throat vacuum ejectors for high altitude testing facilities
Ghanshyam Bharate,Arun Kumar R +1 more
TL;DR: In this article, the authors investigated the process of vacuum generation in a second throat vacuum ejector system employed for the high altitude testing of rocket motors and found that the various stages of evacuation are closely linked to the internal shock wave movement in the supersonic nozzle.
Journal ArticleDOI
Transient characteristics of a typical vacuum ejector—An experimental study
TL;DR: In this article , the authors investigate the characteristics of a typical vacuum ejector's starting transient, steady-state, and shut-down transient, using time-resolved Schlieren images and oil flow visualization.
Journal ArticleDOI
Starting transient analysis of second throat exhaust diffuser in high-altitude test of a thrust optimized parabolic nozzle
TL;DR: In this paper , the authors present a combined numerical and experimental investigation of the starting process of a second throat diffuser during ground testing of a thrust-optimized parabolic (TOP).
References
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Journal ArticleDOI
Asymmetric flows and instabilities in symmetric ducts with sudden expansions
TL;DR: In this paper, the spectral distributions of the fluctuations in velocity are quantitatively related to the dimensions of the two unequal regions of flow recirculation, and it is shown that the intensity of fluctuating energy in these low Reynolds number flows can be larger than that in corresponding turbulent flows.
Journal ArticleDOI
Ejectors: applications in refrigeration technology
K. Chunnanond,Satha Aphornratana +1 more
TL;DR: A literature review on ejectors and their applications in refrigeration can be found in this article, where a number of studies are grouped and discussed in several topics, i.e. background and theory of ejector and jet refrigeration cycle, performance characteristics, working fluid and improvement of jet refrigerator.
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Bifurcation phenomena in incompressible sudden expansion flows
TL;DR: In this paper, a numerical study of laminar incompressible flows in symmetric plane sudden expansions was carried out, and the results revealed that the flow remains symmetric up to a certain Reynolds number depending on the expansion ratio, while asymmetries appear at higher Reynolds numbers.
Journal ArticleDOI
The plane Symmetric sudden-expansion flow at low Reynolds numbers
TL;DR: In this article, velocity measurements and numerical predictions are presented for the flow through a plane nominally two-dimensional duct with a Symmetric sudden expansion of area ratio 1:2.
Journal ArticleDOI
Review on solar-driven ejector refrigeration technologies
TL;DR: In this paper, the authors provide a literature review on solar-driven ejector refrigeration systems and give useful guidelines regarding background and operating principles of ejector, and report the development history and recent progress in solar driven ejector cooling systems.