Article(id=1242135702398382194, tenantId=1146029695717560320, journalId=1146031591421210625, issueId=1242135676540494779, articleNumber=null, orderNo=17, doi=10.3981/j.issn.1000-7857.2017.02.012, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1456156800000, receivedDateStr=2016-02-23, revisedDate=1480953600000, revisedDateStr=2016-12-06, acceptedDate=null, acceptedDateStr=null, onlineDate=1487227671623, onlineDateStr=2017-02-16, pubDate=1485532800000, pubDateStr=2017-01-28, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1487227671623, onlineIssueDateStr=2017-02-16, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1774077829213, creator=sys-migrate, updateTime=1774077829213, updator=sys-migrate, issue=Issue{id=1242135676540494779, tenantId=1146029695717560320, journalId=1146031591421210625, year='2017', volume='35', issue='2', pageStart='1', pageEnd='96', issueExtLink='null', onlineDate='null', pubDate='1485532800000', pubDateStr='2017-01-28', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=3, issueType=-1, specialIssue=null, createTime=1774077823049, creator='sys-migrate', updateTime=1774077823049, updator='sys-migrate', preIssue=null, nextIssue=null, articleTotal=null, ext=null, issueFiles=null, downloadFileDto=null}, startPage=87, endPage=91, ext={EN=ArticleExt(id=1242135706634629268, articleId=1242135702398382194, tenantId=1146029695717560320, journalId=1146031591421210625, language=EN, title=Research of droplet impact on super hydrophobic surface based on an improved stress algorithm of SPH method, columnId=1242116080374710456, journalTitle=Science & Technology Review, columnName=Articles, runingTitle=null, highlight=null, articleAbstract=The compressive stress in the Van der Waals state equation is coupled into the SPH model to simulate the droplet's surface tension. To improve model's stress stability, the tensile stress and compressive stresses are calculated, respectively with a modified Quintic kernel function and a Bell-Shaped kernel function. The model is verified by simulating the droplet impact on super hydrophobic surface, and the numerical result is in good agreement with experiment data. Furthermore, the solid surface's frictional stress and its effective region are analyzed. It is shown that, when the wall relative infiltration diameter φ<1, the effect of the solid surface viscosity υ' on the droplet's spreading is not significant. When φ≥1, under the same condition, the droplet spreading velocity and φ_max (maximum φ) will decrease with the increase of υ'. During the spreading process φ≥1 is the main effective region of the frictional stress. The time taken to achieve the φ_max at different υ' sees very small change, so υ' has little influence on the spreading time. Under the same solid boundary condition, the frictional stress of the spreading droplet will increase with the increase of the impact velocity ν₀. The relation between υ' and ν₀ is roughly in a parabola., authors=WANG Zhichao, NIU Jiao, authorsList=WANG Zhichao, NIU Jiao, authorCompany=Jiangxi Hydraulic Research Institute, Nanchang 330029, China, correspAuthors=null, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=jmq3tYunD8lH8tTHkx7USA==, pdfFileSize=2101156, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1242135704151601279, articleId=1242135702398382194, tenantId=1146029695717560320, journalId=1146031591421210625, language=CN, title=基于SPH应力修正算法的液滴撞击超疏水壁面模拟分析, columnId=1146540929516700224, journalTitle=科技导报, columnName=研究论文, runingTitle=null, highlight=null, articleAbstract=针对SPH方法中的压应力不稳定问题，提出一种改进的Quintic核函数，相对于传统的“钟形”核函数可以更好地改善SPH模拟过程中粒子的聚集现象。应用改进模型对液滴撞击超疏水壁面过程进行模拟研究，根据撞击后液滴铺展的运动特征，分析了影响壁面摩擦阻力的因素以及摩擦阻力的作用区域。结果表明，当壁面相对浸润直径φ<1时，撞击后液滴铺展受壁面黏度系数υ'的影响不明显，而当φ≥1时，相同条件下υ'越大液滴铺展速度越小，壁面相对浸润直径的最大值φ_max越小，因此φ≥1为撞击后液滴铺展过程中壁面摩擦阻力的主要作用区域；壁面黏度系数υ'值对撞击后液滴铺展时间影响较小，不同υ'条件下液滴铺展达到φ_max的时间相近，在相同壁面条件下液滴铺展受到的摩擦阻力会随着撞击速度v₀的增加而变大，υ'与v₀大致按二次抛物线变化。, authors=王志超, 牛娇, authorsList=王志超, 牛娇, authorCompany=江西省水利科学研究院, 南昌 330029, correspAuthors=null, authorNote=王志超,博士,研究方向为水动力学与模拟,电子信箱:wzc_tju@sina.com, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=a1PLF8eWR3/bLDm0L3iKuw==, pdfFileSize=2101156, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null)}, authors=null, 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