Author
Ghanshyam Bharate
Bio: Ghanshyam Bharate is an academic researcher from Indian Institute of Technology, Jodhpur. The author has contributed to research in topics: Diffuser (thermodynamics) & Nozzle. The author has co-authored 1 publications.
Topics: Diffuser (thermodynamics), Nozzle
Papers
More filters
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.
7 citations
Cited by
More filters
TL;DR: In this article , an Euler turbine-based hybrid mesh turbomachinery is proposed to operate in complicated conditions, e.g., in offshore gas fields, where the environmentally friendly net reservoir energy of high-pressure well gas should be rationally used for operating a booster compressor station.
Abstract: This research discusses developing an Euler turbine-based hybrid mesh turbomachinery. Within the framework of mechanical engineering science, turbomachinery classification and a novel method for mesh turbomachinery design were considered. In such a turbomachine, large blades are replaced by a set of smaller blades, which are interconnected to form flow channels in a mesh structure. Previous studies (and reasoning within the framework of inductive and deductive logic) showed that the jet mesh control system allows for operation with several flows simultaneously and provides a pulsed flow regime in flow channels. This provides new opportunities for expanding the control range and reducing the thermal load on the turbomachine blades. The novel method for performance evaluation was confirmed by the calculation: the possibility of implementing pulsed cooling of blades periodically washed by a hot working gas flow (at a temperature of 1000°C) and a cold gas flow (at a temperature of 20°C) was shown. The temperature of the blade walls remained 490–525°C. New results of ongoing research are focused on creating multi-mode turbomachinery that operates in complicated conditions, e.g., in offshore gas fields. Gas energy is lost and dissipated in the throttle at the mouth of each high-pressure well. Within the framework of ongoing research, the environmentally friendly net reservoir energy of high-pressure well gas should be rationally used for operating a booster compressor station. Here, the energy consumption from an external power source can be reduced by 50%, according to preliminary estimates. Doi: 10.28991/CEJ-2022-08-11-017 Full Text: PDF
3 citations
TL;DR: In this article , numerical and experimental investigation of exhaust diffuser transient starting in a high-altitude ground test of a thrust optimized parabolic (TOP) nozzle was conducted to examine flow unsteadiness at the starting phase.
2 citations
TL;DR: In this paper , a CNN-based DSMC method (CNN-DSMC) is proposed for real-time analysis of the vacuum plume during the lunar landings, where shape information and boundary conditions are transformed into the signed distance function (SDF) and identifier matrix (IM), respectively.
1 citations
TL;DR: Doi et al. as mentioned in this paper discussed the development of mesh jet devices for hybrid turbines, including developing Euler's ideas, and considered a new patented version of a mesh jet device designed to create guiding devices for turbines.
Abstract: This paper discusses the development of mesh jet devices for hybrid turbines, including developing Euler's ideas, and considers a new patented version of a mesh jet device designed to create guiding devices for turbines. The research methods are based on simulations using CFD and additive technologies. An intermediate conclusion is that a new scientific direction for the study and creation of mesh jet control systems has been formed as part of developing Euler's ideas. Calculation methods showed possible improvements in the performance of jet devices, including the use of curved tubes proposed by Euler to create turbines. This study shows that at the nozzle or mixing chamber outlet, the jet can deflect by an angle from +180° to -180° within the geometric sphere. This study also shows that the scientific groundwork prepared by Euler is not yet fully understood. The ongoing research mainly focuses on creating multi-mode jet devices designed for control systems for mesh turbomachines. Here, power consumption from an external source can be reduced to save energy. Some results of ongoing studies can also be applied in other industries (for example, when creating hybrid propulsion systems or propulsors). The scientific novelty of this work consists of improving the design methodology of jet machinery and turbomachines. Doi: 10.28991/CEJ-2022-08-12-06 Full Text: PDF
1 citations
TL;DR: In this paper , the authors examined the allowable second-throat cross-sectional area of exhaust diffuser in ground tests of a thrust-optimized parabolic nozzle with different expansion ratios.
1 citations