Chao Wang , Yan Lu , Donghui Feng , Jiayuan Zhou , Yangfan Li , Hao Zhang
{"title":"Experimental study on nanobubble distribution control method based on the slip drag reduction effect","authors":"Chao Wang , Yan Lu , Donghui Feng , Jiayuan Zhou , Yangfan Li , Hao Zhang","doi":"10.1016/j.triboint.2022.107940","DOIUrl":null,"url":null,"abstract":"<div><p><span>We compared the nanobubbles nucleation and slip phenomena on four morphological HOPG<span> surface within the nanochannel by molecular-dynamics simulation, and results showed that the distribution morphology of nanobubbles played a decisive factor in the slip reduction, and the larger equivalent nano-gas film thickness, the larger the slip length. The four experimental plans were advanced in layers using AFM under-liquid experiments and the control of the nanobubble distribution morphology was successfully achieved. The optimal combination of experimental parameters effectively improves the nano-gas film thickness. The experimental method of distribution morphology control of nanobubbles and the effect analysis of equivalent nano-gas film thickness on slip reduction are proposed to provide technical support for the </span></span>engineering application<span> of nanobubble drag reduction lubrication.</span></p></div>","PeriodicalId":23238,"journal":{"name":"Tribology International","volume":"177 ","pages":"Article 107940"},"PeriodicalIF":6.1000,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Tribology International","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0301679X22005114","RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, MECHANICAL","Score":null,"Total":0}
引用次数: 2
Abstract
We compared the nanobubbles nucleation and slip phenomena on four morphological HOPG surface within the nanochannel by molecular-dynamics simulation, and results showed that the distribution morphology of nanobubbles played a decisive factor in the slip reduction, and the larger equivalent nano-gas film thickness, the larger the slip length. The four experimental plans were advanced in layers using AFM under-liquid experiments and the control of the nanobubble distribution morphology was successfully achieved. The optimal combination of experimental parameters effectively improves the nano-gas film thickness. The experimental method of distribution morphology control of nanobubbles and the effect analysis of equivalent nano-gas film thickness on slip reduction are proposed to provide technical support for the engineering application of nanobubble drag reduction lubrication.
期刊介绍：
Tribology is the science of rubbing surfaces and contributes to every facet of our everyday life, from live cell friction to engine lubrication and seismology. As such tribology is truly multidisciplinary and this extraordinary breadth of scientific interest is reflected in the scope of Tribology International.
Tribology International seeks to publish original research papers of the highest scientific quality to provide an archival resource for scientists from all backgrounds. Written contributions are invited reporting experimental and modelling studies both in established areas of tribology and emerging fields. Scientific topics include the physics or chemistry of tribo-surfaces, bio-tribology, surface engineering and materials, contact mechanics, nano-tribology, lubricants and hydrodynamic lubrication.
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
