Adaptive Cloud Refinement(ACR)-Adaptation in Meshless Framework

作     者：M.Somasekhar S.Vivek Keshav.S.Malagi V.Ramesh S.M.Deshpande 

作者机构：CTFDCSIR–National Aerospace LaboratoriesBangaloreIndia Dept.of Mechanical EngineeringIndian Institute of Technology MadrasChennaiIndia Engineering Mechanics UnitJNCASRBangaloreIndia 

出 版 物：《Communications in Computational Physics》 (计算物理通讯（英文）)

年 卷 期：2012年第11卷第4期

页      面：1372-1385页

核心收录：

学科分类：08[工学] 0704[理学-天文学] 0702[理学-物理学] 0812[工学-计算机科学与技术（可授工学、理学学位）] 

主　　题：KFVS LSKUM meshless methods adaptation ACR ACU 

摘      要：In the present work adaptation in meshless framework is *** grid adaptation or mesh adaptation is quite well developed area in case of conventional grid based solvers and is popularly known asAdaptivemesh refinement(AMR).In such cases the adaptation is done by subdividing the cells or elements into finer cells or *** case ofmeshlessmethods there are no cells or elements but only a cloud of *** this work we propose to achieve the meshless adaptation by locally refining the point density in the regions demanding higher *** results into an adaptive enriched cloud of *** call this method as Adaptive Cloud Refinement(ACR).Themeshless solvers need connectivity information,which is a set of neighboring *** is crucial part of meshless *** because of refining point density,the connectivity of nodes in such regions gets modified and hence has to be *** efficient connectivity update must exploit the fact that the node distribution would be largely unaffected except the region of *** connectivity updating needs to be done locally,only in these *** this paper we also present an extremely fast algorithm to update connectivity over adapted cloud called as ACU(Automatic Connectivity Update).