{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,22]],"date-time":"2026-09-22T21:30:49Z","timestamp":1790112649647,"version":"4.0.1"},"reference-count":28,"publisher":"MDPI AG","issue":"1","license":[{"start":{"date-parts":[[2022,12,31]],"date-time":"2022-12-31T00:00:00Z","timestamp":1672444800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["61773240"],"award-info":[{"award-number":["61773240"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["2020CXGC010404"],"award-info":[{"award-number":["2020CXGC010404"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"name":"Key R&amp;D projects of Shandong Province","award":["61773240"],"award-info":[{"award-number":["61773240"]}]},{"name":"Key R&amp;D projects of Shandong Province","award":["2020CXGC010404"],"award-info":[{"award-number":["2020CXGC010404"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Entropy"],"abstract":"<jats:p>In this paper, a wet steam model is utilized to study the fluid characteristic and performance of a supersonic ejector. The condensation process, which has been ignored by most researchers, is analyzed in detail. It is found that the most intensive condensation happens at the primary nozzle downstream and nozzle exit region. Moreover, the impacts of primary flow pressure and back pressure on ejector performance are studied by the distribution of Mach number inside the ejector. Furthermore, the results show that the secondary mass flow rate first grows sightly then remains almost unchanged, while the primary mass flow rate rises sharply and ejector entrainment ratio drops dramatically with the increase in primary flow pressure.<\/jats:p>","DOI":"10.3390\/e25010085","type":"journal-article","created":{"date-parts":[[2023,1,2]],"date-time":"2023-01-02T04:51:22Z","timestamp":1672635082000},"page":"85","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":10,"title":["Investigation of Fluid Characteristic and Performance of an Ejector by a Wet Steam Model"],"prefix":"10.3390","volume":"25","author":[{"given":"Chen","family":"Wang","sequence":"first","affiliation":[{"name":"School of Control Science and Engineering, Shandong University, Jinan 250061, China"},{"name":"Department of Mechanical, Aerospace and Civil Engineering, University of Manchester, Manchester M13 9PL, UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0296-8993","authenticated-orcid":false,"given":"Lei","family":"Wang","sequence":"additional","affiliation":[{"name":"School of Control Science and Engineering, Shandong University, Jinan 250061, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2022,12,31]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"117590","DOI":"10.1016\/j.applthermaleng.2021.117590","article-title":"Cooperative control of air and fuel feeding for PEM fuel cell with ejector-driven recirculation","volume":"199","author":"Yin","year":"2021","journal-title":"Appl. Therm. Eng."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"23818","DOI":"10.1016\/j.ijhydene.2022.05.177","article-title":"A development toolchain for a pulsed injector-ejector unit for PEM fuel cell applications","volume":"47","author":"Singer","year":"2022","journal-title":"Int. J. Hydrogen Energy"},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"119159","DOI":"10.1016\/j.applthermaleng.2022.119159","article-title":"Optimization of the primary nozzle for design a high entrainment ejector in spacesuit portable life support system","volume":"217","author":"Guo","year":"2022","journal-title":"Appl. Therm. Eng."},{"key":"ref_4","doi-asserted-by":"crossref","unstructured":"Yan, J., and Wang, C. (2022). Experimental Study on a Multi-Evaporator Refrigeration System Equipped with EEV-Based Ejector. 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Mech."},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"442","DOI":"10.1021\/i260064a003","article-title":"A new ejector theory applied to steam jet refrigeration","volume":"16","author":"Munday","year":"1977","journal-title":"Ind. Eng. Chem. Process Des. Dev."},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"2533","DOI":"10.1016\/j.enconman.2007.03.024","article-title":"Shock circle model for ejector performance evaluation","volume":"48","author":"Zhu","year":"2007","journal-title":"Energy Convers. Manag."},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"1750","DOI":"10.1016\/j.ijrefrig.2013.04.009","article-title":"A 1D model to predict ejector performance at critical and sub-critical operational regimes","volume":"36","author":"Chen","year":"2013","journal-title":"Int. J. Refrig."},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"102","DOI":"10.1016\/j.ijrefrig.2016.04.001","article-title":"Experimental study on key geometric parameters of an R134A ejector cooling system","volume":"67","author":"Yan","year":"2016","journal-title":"Int. J. Refrig."},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"219","DOI":"10.1016\/j.ijrefrig.2017.02.010","article-title":"Numerical study on optimization of ejector primary nozzle geometries","volume":"76","author":"Wang","year":"2017","journal-title":"Int. J. Refrig."},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"155","DOI":"10.1016\/j.renene.2012.03.031","article-title":"Geometry parameters effect for air-cooled ejector cooling systems with R134a refrigerant","volume":"46","author":"Yan","year":"2012","journal-title":"Renew. Energy"},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"673","DOI":"10.1016\/j.energy.2017.08.104","article-title":"Design and numerical investigation of an adaptive nozzle exit position ejector in multi-effect distillation desalination system","volume":"140","author":"Wang","year":"2017","journal-title":"Energy"},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"459","DOI":"10.1016\/j.wear.2013.03.045","article-title":"Mechanisms of stainless steels erosion by water droplets","volume":"303","author":"Luiset","year":"2013","journal-title":"Wear"},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"245","DOI":"10.1016\/j.mcm.2011.06.040","article-title":"Performance comparison and erosion prediction of jet pumps by using a numerical method","volume":"57","author":"Song","year":"2013","journal-title":"Math. Comput. Model."},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"115090","DOI":"10.1016\/j.applthermaleng.2020.115090","article-title":"Optimization of the primary nozzle based on a modified condensation model in a steam ejector","volume":"171","author":"Zhang","year":"2020","journal-title":"Appl. Therm. Eng."},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"117264","DOI":"10.1016\/j.applthermaleng.2021.117264","article-title":"Effects of surface roughness and temperature on non-equilibrium condensation and entrainment performance in a desalination-oriented steam ejector","volume":"196","author":"Sun","year":"2021","journal-title":"Appl. Therm. Eng."},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"74","DOI":"10.1016\/j.applthermaleng.2015.02.023","article-title":"Non-equilibrium condensation of wet steam flow within high-pressure thermo-compressor","volume":"81","author":"Abadi","year":"2015","journal-title":"Appl. Therm. Eng."},{"key":"ref_20","doi-asserted-by":"crossref","first-page":"519","DOI":"10.1016\/j.applthermaleng.2014.06.038","article-title":"Ejector primary nozzle steam condensation: Area ratio effects and mixing layer development","volume":"71","author":"Ariafar","year":"2014","journal-title":"Appl. Therm. Eng."},{"key":"ref_21","doi-asserted-by":"crossref","unstructured":"Yang, B., Ma, X., Zhang, H., Sun, W., Jia, L., and Xue, H. (2022). Effect of Superheat Steam on Ejector in Distilled Water Preparation System for Medical Injection. Entropy, 24.","DOI":"10.3390\/e24070960"},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"168","DOI":"10.1016\/j.enconman.2017.07.025","article-title":"Influences of area ratio and surface roughness on homogeneous condensation in ejector primary nozzle","volume":"149","author":"Wang","year":"2017","journal-title":"Energy Convers. 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Refrig."},{"key":"ref_24","doi-asserted-by":"crossref","first-page":"694","DOI":"10.1016\/j.energy.2018.08.184","article-title":"Realization of novel constant rate of kinetic energy change (CRKEC) supersonic ejector","volume":"164","author":"Kumar","year":"2018","journal-title":"Energy"},{"key":"ref_25","doi-asserted-by":"crossref","first-page":"380","DOI":"10.1016\/j.energy.2015.12.027","article-title":"Mixing layer effects on the entrainment ratio in steam ejectors through ideal gas computational simulations","volume":"95","author":"Ariafar","year":"2016","journal-title":"Energy"},{"key":"ref_26","doi-asserted-by":"crossref","first-page":"108","DOI":"10.1016\/j.ijrefrig.2022.08.014","article-title":"Optimal nozzle exit position for a single-phase ejector (Experimental, numerical and thermodynamic modelling)","volume":"144","author":"Rand","year":"2022","journal-title":"Int. J. Refrig."},{"key":"ref_27","doi-asserted-by":"crossref","first-page":"118377","DOI":"10.1016\/j.applthermaleng.2022.118377","article-title":"Influence of operating conditions on the optimal nozzle exit position for vapor ejector","volume":"210","author":"Poirier","year":"2022","journal-title":"Appl. Therm. Eng."},{"key":"ref_28","doi-asserted-by":"crossref","first-page":"118907","DOI":"10.1016\/j.applthermaleng.2022.118907","article-title":"Geometry dimension optimization of a liquid\u2013gas vacuum ejector for MED-TVC system","volume":"214","author":"Ren","year":"2022","journal-title":"Appl. Therm. 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