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Discussion on Ball Screw Slide–Roll Ratio and Entrainment Velocity Calculation
Machines, 2022 The slide–roll ratio and entrainment velocity are critical parameters in ball screw mechanism tribology investigations and are often determined by Chin-Chung Wei’s approach. Their findings indicated that substantial sliding always occurs between the ball
Weike Wang +3 more
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Analytical Study of the Bed Roughness and Entrainment Ratio of Saline Density Currents on Hydraulic Jump [PDF]
مهندسی منابع آب, 2017 Density current is produced due to a density contrast with the ambient fluid. This density difference can result from dissolved solids, suspended materials, temperature, etc.
Nader Barahmand
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Applied Sciences, 2021 This paper investigated the effect of air leaking into the working fluid on the performance of a steam ejector. A simulation of the mixing of air into the primary and secondary fluids was performed using CFD. The effects of air with a 0, 0.1, 0.3 and 0.5
He Li +4 more
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Investigation of the Motive Steam Pressure Effect on Performance and Reverse Flows in Sugar Factory Thermo-compressor: Validation and Numerical Study [PDF]
Journal of Agricultural Machinery, 2022 IntroductionThermo-compressors or ejectors are used to enhance the vapor enthalpy in the process industry. The low costs of construction and maintenance, and simple structure, have increased by using this equipment in relevant fields of industry and ...
A Rezvanivand fanaei +2 more
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Energies, 2023 The present study established an experimental system of steam ejector refrigeration to evaluate the effect of the operating parameters, such as pressure on the diffuser wall and primary and secondary fluid, on the performance and efficiency of the ...
Youhao Xie +4 more
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Entrainment ratio analysis of compress/ejector refrigeration system [PDF]
Proceedings of the 2015 International Conference on Advances in Mechanical Engineering and Industrial Informatics, 2015 Entrainment ratio is one of the main characteristic parameters of ejector. Studding on it is of a quiet importance to the compression/ejector refrigeration system. Computational Fluid Dynamics (CFD) is used to simulate the inner flow and analyse the influence of driving fluid pressure and outlet pressure to the performance of ejector. By simulating the
Jianwen Wang, Jiangming Tan
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Dual dean entrainment with volume ratio modulation for efficient droplet co-encapsulation: extreme single-cell indexing [PDF]
Lab on a Chip, 2021 Pirouette coupling involves Dean flow for cell and reporter bead inertial ordering for efficient co-encapsulation, achieving a throughput of 1 million cells per hour, a 2.5% multiplet rate and a 70% cell capture efficiency.
Jack Harrington +14 more
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Numerical Simulation Study of a Swirling Drill Bit Used for Ice Core Drilling
Journal of Marine Science and Engineering, 2022 Due to its high mechanical penetration rate and lack of pollution of the environment, air reverse circulation drilling is considered to be a promising method for ice drilling.
Mengke Wang +4 more
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Entropy, 2022 The steam ejector is valuable and efficient in the fire suppression field due to its strong fluid-carrying capacity and mixing ability. It utilizes pressurized steam droplets generated at the exit to extinguish the fire quickly and the steam droplet ...
Yu Han +4 more
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Effect of Superheat Steam on Ejector in Distilled Water Preparation System for Medical Injection
Entropy, 2022 In this study, a wet steam model was used to investigate the effect of steam superheat on ejector performance and non-equilibrium condensation phenomena. The simulation data for the ejector were validated with experimental data. The simulations show that
Bin Yang +5 more
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