J. J. Tian, H. Y. Wang, S. Mehendale, Z. Zhang, C. X. Wu, X. D. Gu
{"title":"水滴对碳纤维板的冲击和冻结过程的视觉研究","authors":"J. J. Tian, H. Y. Wang, S. Mehendale, Z. Zhang, C. X. Wu, X. D. Gu","doi":"10.1134/S1810232823040112","DOIUrl":null,"url":null,"abstract":"<p>The present study investigates the effects of droplet impact height, tilt angle, and surface temperature on the impact and freezing process of water droplet on a cold surface by using a Motionpro high-speed camera and a DSA-30 droplet surface analyzer. The temperature of the plate was changed from an ambient temperature of 24.0°C to <span>\\(-10.0^{\\circ}\\)</span>C, while three impact heights (<span>\\(H\\)</span> = 100, 150 and 200 mm) were set. The data indicated that increasing impact height led to increase in the maximum spreading diameter and maximum endpoint displacement, but its effect on droplet spreading time was not significant. With decreasing the surface temperature, the rate of change in the droplet diameter was smoother and the droplet freezing time reduced. Moreover, at low Weber number (<span>\\(We < 200\\)</span>), the impact height has less effect on the freezing time of the droplet. Besides, compared with the horizontal plate, the droplet freezing time on plate tilted at 30° was higher for the same impact height.</p>","PeriodicalId":627,"journal":{"name":"Journal of Engineering Thermophysics","volume":"32 4","pages":"788 - 806"},"PeriodicalIF":1.3000,"publicationDate":"2023-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Visual Study of the Impact and Freezing Process of a Water Droplet on Carbon Fiber Plates\",\"authors\":\"J. J. Tian, H. Y. Wang, S. Mehendale, Z. Zhang, C. X. Wu, X. D. Gu\",\"doi\":\"10.1134/S1810232823040112\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>The present study investigates the effects of droplet impact height, tilt angle, and surface temperature on the impact and freezing process of water droplet on a cold surface by using a Motionpro high-speed camera and a DSA-30 droplet surface analyzer. The temperature of the plate was changed from an ambient temperature of 24.0°C to <span>\\\\(-10.0^{\\\\circ}\\\\)</span>C, while three impact heights (<span>\\\\(H\\\\)</span> = 100, 150 and 200 mm) were set. The data indicated that increasing impact height led to increase in the maximum spreading diameter and maximum endpoint displacement, but its effect on droplet spreading time was not significant. With decreasing the surface temperature, the rate of change in the droplet diameter was smoother and the droplet freezing time reduced. Moreover, at low Weber number (<span>\\\\(We < 200\\\\)</span>), the impact height has less effect on the freezing time of the droplet. Besides, compared with the horizontal plate, the droplet freezing time on plate tilted at 30° was higher for the same impact height.</p>\",\"PeriodicalId\":627,\"journal\":{\"name\":\"Journal of Engineering Thermophysics\",\"volume\":\"32 4\",\"pages\":\"788 - 806\"},\"PeriodicalIF\":1.3000,\"publicationDate\":\"2023-12-14\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Engineering Thermophysics\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://link.springer.com/article/10.1134/S1810232823040112\",\"RegionNum\":4,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"ENGINEERING, MECHANICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Engineering Thermophysics","FirstCategoryId":"5","ListUrlMain":"https://link.springer.com/article/10.1134/S1810232823040112","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENGINEERING, MECHANICAL","Score":null,"Total":0}
Visual Study of the Impact and Freezing Process of a Water Droplet on Carbon Fiber Plates
The present study investigates the effects of droplet impact height, tilt angle, and surface temperature on the impact and freezing process of water droplet on a cold surface by using a Motionpro high-speed camera and a DSA-30 droplet surface analyzer. The temperature of the plate was changed from an ambient temperature of 24.0°C to \(-10.0^{\circ}\)C, while three impact heights (\(H\) = 100, 150 and 200 mm) were set. The data indicated that increasing impact height led to increase in the maximum spreading diameter and maximum endpoint displacement, but its effect on droplet spreading time was not significant. With decreasing the surface temperature, the rate of change in the droplet diameter was smoother and the droplet freezing time reduced. Moreover, at low Weber number (\(We < 200\)), the impact height has less effect on the freezing time of the droplet. Besides, compared with the horizontal plate, the droplet freezing time on plate tilted at 30° was higher for the same impact height.
期刊介绍：
Journal of Engineering Thermophysics is an international peer reviewed journal that publishes original articles. The journal welcomes original articles on thermophysics from all countries in the English language. The journal focuses on experimental work, theory, analysis, and computational studies for better understanding of engineering and environmental aspects of thermophysics. The editorial board encourages the authors to submit papers with emphasis on new scientific aspects in experimental and visualization techniques, mathematical models of thermophysical process, energy, and environmental applications. Journal of Engineering Thermophysics covers all subject matter related to thermophysics, including heat and mass transfer, multiphase flow, conduction, radiation, combustion, thermo-gas dynamics, rarefied gas flow, environmental protection in power engineering, and many others.
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
