A Lagrangian gradient smoothing method for solid‐flow problems using simplicial mesh

机译：一种利拉朗日梯度平滑方法，用于使用单层网格的固态问题

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Summary >A novel Lagrangian gradient smoothing method (L‐GSM) is developed to solve “solid‐flow” (flow media with material strength) problems governed by Lagrangian form of Navier‐Stokes equations. It is a particle‐like method, similar to the smoothed particle hydrodynamics (SPH) method but without the so‐called tensile instability that exists in the SPH since its birth. The L‐GSM uses gradient smoothing technique to approximate the gradient of the field variables, based on the standard GSM that was found working well with Euler grids for general fluids. The Delaunay triangulation algorithm is adopted to update the connectivity of the particles, so that supporting neighboring particles can be determined for accurate gradient approximations. Special techniques are also devised for treatments of 3 types of boundaries: no‐slip solid boundary, free‐surface boundary, and periodical boundary. An advanced GSM operation for better consistency condition is then developed. Tensile stability condition of L‐GSM is investigated through the von Neumann stability analysis as well as numerical tests. The proposed L‐GSM is validated by using benchmarking examples of incompressible flows, including the Couette flow, Poiseuille flow, and 2D shear‐driven cavity. It is then applied to solve a practical problem of solid flows: the natural failure process of soil and the resultant soil flows. The numerical results are compared with theoretical solutions, experimental data, and other numerical results by SPH and FDM to evaluate further L‐GSM performance. It shows that the L‐GSM scheme can give a very accurate result for all these examples. Both the theoretical analysis and the numerical testing results demonstrate that the proposed L‐GSM approach restores first‐order accuracy unconditionally and does not suffer from the tensile instability. It is al </span> <span class="z_kbtn z_kbtnclass hoverxs" style="display: none;">展开▼</span> </div> <div class="translation abstracttxt"> <span class="zhankaihshouqi fivelineshidden" id="abstract"> <span>机译：</span><abstract xmlns =“http://www.wiley.com/namespaces/wiley”type =“main”xml：lang =“en”> <title type =“main”>摘要</ title> >一部小说拉格朗日梯度平滑方法（L-GSM）是开发的，以解决“固体流动”（流量介质，具有材料强度）由拉格朗日形式的Navier-Stokes方程所致的问题。它是一种类似于平滑颗粒流体动力学（SPH）方法的颗粒状方法，但是由于没有其出生以来SPH中存在的所谓的拉伸不稳定。 L-GSM使用梯度平滑技术来近似基于与一般流体的欧拉网格合作的标准GSM来近似现场变量的梯度。采用Delaunay三角测量算法来更新粒子的连接，从而可以确定支持相邻粒子的准确梯度近似。还设计了3种类型边界的治疗方法的特殊技术：无滑移实体边界，自由表面边界和周期边界。然后开发出用于更好一致性条件的高级GSM操作。通过von Neumann稳定性分析以及数值测试来研究L-GSM的拉伸稳定性条件。所提出的L-GSM通过使用不可压缩流动的基准测试示例，包括Couette流量，Poiseuille Flow和2D剪切驱动腔。然后应用于解决实际流动的实际问题：土壤的自然失效过程和所得土壤流动。通过SPH和FDM将数值结果与理论溶液，实验数据和其他数值结果进行比较，以评估其他L-GSM性能。它表明L-GSM方案可以为所有这些示例提供非常准确的结果。理论分析和数值测试结果表明，所提出的L-GSM方法无条件地恢复一阶精度，并且不会遭受拉伸不稳定性。这是al </span> <span class="z_kbtn z_kbtnclass hoverxs" style="display: none;">展开▼</span> </div> </div> <div class="record"> <h2 class="all_title" id="enpatent33" >著录项</h2> <ul> <li> <span class="lefttit">来源</span> <div style="width: 86%;vertical-align: text-top;display: inline-block;"> <a href='/journal-foreign-20801/'>《International Journal for Numerical Methods in Engineering》</a> <b style="margin: 0 2px;">|</b><span>2018年第5期</span><b style="margin: 0 2px;">|</b><span>共33页</span> </div> </li> <li> <div class="author"> <span class="lefttit">作者</span> <p id="fAuthorthree" class="threelineshidden zhankaihshouqi"> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Mao Zirui&option=202" target="_blank" rel="nofollow">Mao Zirui;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Liu G. R.&option=202" target="_blank" rel="nofollow">Liu G. R.;</a> </p> <span class="z_kbtnclass z_kbtnclassall hoverxs" id="zkzz" style="display: none;">展开▼</span> </div> </li> <li> <div style="display: flex;"> <span class="lefttit">作者单位</span> <div style="position: relative;margin-left: 3px;max-width: 639px;"> <div class="threelineshidden zhankaihshouqi" id="fOrgthree"> <p>Department of Aerospace Engineering and Engineering MechanicsUniversity of CincinnatiCincinnati OH 45219 USA;</p> <p>Department of Aerospace Engineering and Engineering MechanicsUniversity of CincinnatiCincinnati OH 45219 USA;</p> </div> <span class="z_kbtnclass z_kbtnclassall hoverxs" id="zhdw" style="display: none;">展开▼</span> </div> </div> </li> <li > <span class="lefttit">收录信息</span> <span style="width: 86%;vertical-align: text-top;display: inline-block;"></span> </li> <li> <span class="lefttit">原文格式</span> <span>PDF</span> </li> <li> <span class="lefttit">正文语种</span> <span>eng</span> </li> <li> <span class="lefttit">中图分类</span> <span><a href="https://www.zhangqiaokeyan.com/clc/6940.html" title="工程数学">工程数学;</a></span> </li> <li class="antistop"> <span class="lefttit">关键词</span> <p style="width: 86%;vertical-align: text-top;"> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=free‐surface flow&option=203" rel="nofollow">free‐surface flow;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=GSM&option=203" rel="nofollow">GSM;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Lagrangian gradient smoothing method&option=203" rel="nofollow">Lagrangian gradient smoothing method;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=mesh‐free method&option=203" rel="nofollow">mesh‐free method;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=solid flow&option=203" rel="nofollow">solid flow;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=SPH&option=203" rel="nofollow">SPH;</a> </p> <div class="translation"> 机译：自由表面流动;GSM;拉格朗日梯度平滑方法;无网格法;固体流动;SPH; </div> </li> </ul> </div> </div> <div class="literature cardcommon"> <div class="similarity "> <h3 class="all_title" id="enpatent66">相似文献</h3> <div class="similaritytab clearfix"> <ul> <li class="active" >外文文献</li> <li >中文文献</li> <li >专利</li> </ul> </div> <div class="similarity_details"> <ul > <li> <div> <b>1. </b><a class="enjiyixqcontent" href="/journal-foreign-detail/0704022969944.html">A Lagrangian gradient smoothing method for solid‐flow problems using simplicial mesh</a> <b>[J]</b> . <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Mao Zirui&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Mao Zirui,</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Liu G. 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Walker&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Wade A. Walker </a> <span>2009</span> </span> </div> <p class="zwjiyix translation" style="max-width: initial;height: auto;word-break: break-all;white-space: initial;text-overflow: initial;overflow: initial;"> <span>机译：重复替换方法：用于计算流体动力学的纯拉格朗日无网格方法</span> </p> </li> <li> <div> <b>7. </b><a class="enjiyixqcontent" href="/open-access_resources_thesis/0100074336953.html ">Users manual for Opt-MS : local methods for simplicial mesh smoothing and untangling.</a> <b>[O] </b> . <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Freitag, L.&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Freitag, L. </a> <span>1999</span> </span> </div> <p class="zwjiyix translation" style="max-width: initial;height: auto;word-break: break-all;white-space: initial;text-overflow: initial;overflow: initial;"> <span>机译：Opt-ms的用户手册：用于单纯网格平滑和解开的局部方法。</span> </p> </li> <li> <div> <b>8. </b><a class="enjiyixqcontent" href="/ntis-science-report_de_thesis/02071400283.html">Users manual for Opt-MS: Local methods for simplicial mesh smoothing and untangling</a> <b>[R] </b> . <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Freitag, L.&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Freitag, L. </a> <span>1999</span> </span> </div> <p class="zwjiyix translation" style="max-width: initial;height: auto;word-break: break-all;white-space: initial;text-overflow: initial;overflow: initial;"> <span>机译：Opt-ms的用户手册：用于单纯网格平滑和解开的局部方法</span> </p> </li> </ul> <ul style="display: none;"> <li> <div> <b>1. </b><a class="enjiyixqcontent" href="/academic-journal-cn_journal-ship-ocean-engineering-english_thesis/0201293335635.html">拉格朗日无网格方法中用于拉普拉斯算子离散的二次SFDI研究</a> <b>[J]</b> <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Shiqiang Yan&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor"> . Shiqiang Yan</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Q.W.Ma&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">,Q.W.Ma</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Jinghua Wang&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">,Jinghua Wang</a> <span> <a href="/journal-cn-53008/" target="_blank" rel="nofollow" class="tuijian_authcolor"> . 船舶与海洋工程学报：英文版 </a> </span> <span> . 2020</span><span>,第3期</span> </span> </div> </li> <li> <div> <b>2. </b><a class="enjiyixqcontent" href="/academic-journal-cn_acta-mathematica-scientia_thesis/0201280444632.html">一种非结构网格上求解拉格朗日形式可压缩欧拉方程的二阶RKDG方法</a> <b>[J]</b> <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=赵晓龙&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor"> . 赵晓龙</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=邱美兰&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">,邱美兰</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=蔚喜军&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">,蔚喜军</a> <span> <a href="/journal-cn-14556/" target="_blank" rel="nofollow" class="tuijian_authcolor"> . 数学物理学报 </a> </span> <span> . 2020</span><span>,第005期</span> </span> </div> </li> <li> <div> <b>3. </b><a class="enjiyixqcontent" href="/academic-journal-cn_chinese-journal-engineering-geophysics_thesis/0201214517760.html">一种用于Occam反演中搜索拉格朗日乘子的方法</a> <b>[J]</b> <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=刘俊峰&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor"> . 刘俊峰</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=邓居智&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">,邓居智</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=陈辉&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">,陈辉</a> <span> <a href="/journal-cn-9714/" target="_blank" rel="nofollow" class="tuijian_authcolor"> . 工程地球物理学报 </a> </span> <span> . 2013</span><span>,第003期</span> </span> </div> </li> <li> <div> <b>4. </b><a class="enjiyixqcontent" href="/academic-journal-cn_detail_thesis/0201293730484.html">一种固定网格上拉格朗日点追踪的快速算法</a> <b>[J]</b> <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=刘永丰&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor"> . 刘永丰</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=明平剑&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">,明平剑</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=张文平&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">,张文平</a> <span> <a href="/journal-cn-57258/" target="_blank" rel="nofollow" class="tuijian_authcolor"> . 计算物理 </a> </span> <span> . 2010</span><span>,第4期</span> </span> </div> </li> <li> <div> <b>5. </b><a class="enjiyixqcontent" href="/academic-journal-cn_computer-modernization_thesis/0201241736807.html">一种基于拉格朗日多项式的网格RBAC设计</a> <b>[J]</b> <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=邹成武&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor"> . 邹成武</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=黄文文&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">,黄文文</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=余敏&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">,余敏</a> <span> <a href="/journal-cn-8911/" target="_blank" rel="nofollow" class="tuijian_authcolor"> . 计算机与现代化 </a> </span> <span> . 2009</span><span>,第004期</span> </span> </div> </li> <li> <div> <b>6. </b><a class="enjiyixqcontent" href="/academic-conference-cn_meeting-60429_thesis/020222663340.html">一种稳健总体最小二乘的拉格朗日乘数方法</a> <b>[C]</b> <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=GONG Xun-Qiang&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor"> . 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