Guangyu Yuan , Xin Wang , Baoyu Ni , Wei Xu , Di Yang , Yanzhuo Xue
{"title":"浸没文丘里空化水射流载荷特性及破冰过程试验研究","authors":"Guangyu Yuan , Xin Wang , Baoyu Ni , Wei Xu , Di Yang , Yanzhuo Xue","doi":"10.1016/j.jfluidstructs.2025.104374","DOIUrl":null,"url":null,"abstract":"<div><div>This study studied the mechanism and process of ice breaking by a submerged high-pressure water jet (HPWJ) in a Venturi structure through experimental investigations. Firstly, the analysis focused on the load characteristics and flow field properties of the submerged cavitating HPWJs, including typical wall load time-history curves and characteristic phases. Furthermore, two key structural parameters of the Venturi nozzle were optimized under the parameter combination used in this study, unlike the non-submerged state, the nozzle with a throat length-to-diameter ratio of 1 and a divergence angle of 8° was the best for wall loads. Subsequently, based on the load analysis, the ice breaking process and failure modes under the combined effects of flow field disturbance pressure loads and cavitation pressure loads of the submerged HPWJ were discussed. Finally, the influence of submerged status on the ice breaking process was summarized. The research found that the submerged jets exhibited good performance during sustained icebreaking processes due to cavitation generated from Venturi throat and shear action of the submerged water jet interacting with the flow field, thus potentially serving as an auxiliary method for future subglacial structure icebreaking.</div></div>","PeriodicalId":54834,"journal":{"name":"Journal of Fluids and Structures","volume":"137 ","pages":"Article 104374"},"PeriodicalIF":3.5000,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Experimental study on load characteristic and icebreaking process of submerged Venturi cavitating water jets\",\"authors\":\"Guangyu Yuan , Xin Wang , Baoyu Ni , Wei Xu , Di Yang , Yanzhuo Xue\",\"doi\":\"10.1016/j.jfluidstructs.2025.104374\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>This study studied the mechanism and process of ice breaking by a submerged high-pressure water jet (HPWJ) in a Venturi structure through experimental investigations. Firstly, the analysis focused on the load characteristics and flow field properties of the submerged cavitating HPWJs, including typical wall load time-history curves and characteristic phases. Furthermore, two key structural parameters of the Venturi nozzle were optimized under the parameter combination used in this study, unlike the non-submerged state, the nozzle with a throat length-to-diameter ratio of 1 and a divergence angle of 8° was the best for wall loads. Subsequently, based on the load analysis, the ice breaking process and failure modes under the combined effects of flow field disturbance pressure loads and cavitation pressure loads of the submerged HPWJ were discussed. Finally, the influence of submerged status on the ice breaking process was summarized. The research found that the submerged jets exhibited good performance during sustained icebreaking processes due to cavitation generated from Venturi throat and shear action of the submerged water jet interacting with the flow field, thus potentially serving as an auxiliary method for future subglacial structure icebreaking.</div></div>\",\"PeriodicalId\":54834,\"journal\":{\"name\":\"Journal of Fluids and Structures\",\"volume\":\"137 \",\"pages\":\"Article 104374\"},\"PeriodicalIF\":3.5000,\"publicationDate\":\"2025-07-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Fluids and Structures\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0889974625001094\",\"RegionNum\":2,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"ENGINEERING, MECHANICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Fluids and Structures","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0889974625001094","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, MECHANICAL","Score":null,"Total":0}
Experimental study on load characteristic and icebreaking process of submerged Venturi cavitating water jets
This study studied the mechanism and process of ice breaking by a submerged high-pressure water jet (HPWJ) in a Venturi structure through experimental investigations. Firstly, the analysis focused on the load characteristics and flow field properties of the submerged cavitating HPWJs, including typical wall load time-history curves and characteristic phases. Furthermore, two key structural parameters of the Venturi nozzle were optimized under the parameter combination used in this study, unlike the non-submerged state, the nozzle with a throat length-to-diameter ratio of 1 and a divergence angle of 8° was the best for wall loads. Subsequently, based on the load analysis, the ice breaking process and failure modes under the combined effects of flow field disturbance pressure loads and cavitation pressure loads of the submerged HPWJ were discussed. Finally, the influence of submerged status on the ice breaking process was summarized. The research found that the submerged jets exhibited good performance during sustained icebreaking processes due to cavitation generated from Venturi throat and shear action of the submerged water jet interacting with the flow field, thus potentially serving as an auxiliary method for future subglacial structure icebreaking.
期刊介绍:
The Journal of Fluids and Structures serves as a focal point and a forum for the exchange of ideas, for the many kinds of specialists and practitioners concerned with fluid–structure interactions and the dynamics of systems related thereto, in any field. One of its aims is to foster the cross–fertilization of ideas, methods and techniques in the various disciplines involved.
The journal publishes papers that present original and significant contributions on all aspects of the mechanical interactions between fluids and solids, regardless of scale.