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Yihe He, Xiaojuan Shi and Honghu Ji
Based on the orthogonal experimental method, a simulation case of the flow field of the ejector nozzle was designed to investigate the influence of the structural parameters of the ejector nozzle on the internal and external flow. This study explored the...
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Grigore Cican, Tiberius-Florian Frigioescu, Daniel-Eugeniu Crunteanu and Laurentiu Cristea
This paper explores the implementation of an ejector to a micro turbojet engine and analysis of the advantages in terms of acoustic and thrust/fuel consumption. Starting with the analytical equations and a series of numerical simulations, the optimal eje...
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Nan He, Xiaolong Chi, Chi Feng, Manfei Lu, Li Zhang and Jingming Dong
Steam ejectors could improve the energy efficiency of ships by efficiently utilizing low-grade waste heat from ships for seawater desalination or cooling. The internal flow characteristics of steam ejectors can be deeply analyzed through numerical simula...
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Qi Jing, Wanwu Xu, Wei Ye and Zhiyan Li
Supersonic mixing layer development seriously impacts on the performance of an ejector, and the effect of mixing chamber contraction angle on supersonic jet mixing has been poorly studied. Numerical simulations are applied to investigate the effect of th...
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Hao Wu, Meng Liu, Youzhi Mi, Jun Wang and Menglei Guo
The dust storm on the surface of Mars is a severe threat to Mars exploration missions. Taking adequate measures to avoid the impact of the harsh wind-blown dust environment is indispensable. Ground simulation of the Martian high-speed windblown dust envi...
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Mengke Wang, Wenbo He, Minqi Wang, Jine Cao and Pinlu Cao
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. The air reverse circulation is caused by the combination of the ejector and th...
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Barbara Mikac, Marco Abbiati, Michele Adda, Marina Antonia Colangelo, Andrea Desiderato, Marco Pellegrini, Cesare Saccani, Eva Turicchia and Massimo Ponti
A sediment bypassing plant based on innovative jet pump, ejectors, has been tested in the first-of-a-kind demo application at the harbor of Cervia (Italy, Northern Adriatic Sea). The ejector is a jet pump aimed to reduce sediment accumulation in navigati...
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He Li, Xiaodong Wang, Jiuxin Ning, Pengfei Zhang and Hailong Huang
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...
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Marco Pellegrini, Arash Aghakhani, Maria Gabriella Gaeta, Renata Archetti, Alessandro Guzzini and Cesare Saccani
The need to remove deposited material from water basins is common and has been shared by many ports and channels since the earliest settlements along coasts and rivers. Dredging, the most widely used method to remove sediment deposits, is a reliable and ...
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Eldwin Djajadiwinata, Shereef Sadek, Shaker Alaqel, Jamel Orfi and Hany Al-Ansary
This paper studies the pressure variation that exists on the converging mixing section wall of a supersonic ejector for refrigeration application. The objective is to show that the ejector one-dimensional model can be improved by considering this wall?s ...
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