An analytical interface reconstruction algorithm in the PLIC‐VOF method for 2D polygonal unstructured meshes

机译：2D多边形非结构化网格PLIC-VOF方法中的分析界面重建算法

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Summary >Piecewise linear interface calculation (PLIC) schemes have been extensively employed in the volume‐of‐fluid (VOF) method for interface capturing in numerical simulations of multiphase flows. Polygonal unstructured meshes are often adopted because of their geometric flexibility and superiority in gradient calculation. An analytical interface reconstruction algorithm in the PLIC‐VOF method for arbitrary convex polygonal cells has been proposed in this study. The line interface at a given orientation within a polygonal cell is located by an analytical technique. It has been tested successfully for four different geometric shapes that are common in polygonal meshes. The computational efficiency of the present algorithm has been compared with several published schemes in the literature. The proposed algorithm has been shown to yield higher accuracy with reduction in computational complexity. A numerical simulation of a dam‐breaking problem has been performed using the proposed analytical PLIC technique on polygonal meshes. The results are in good agreement with experimental data available in the literature, which serves as a demonstration of its performance in a real multiphase flow. </abstract> </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”xml：id =“fld4664-abs-abs-0001”> <标题类型=“main”>摘要</ title> 分段线性界面计算（PLIC）方案在多相流的数值模拟中被广泛使用流体体积（VOF）方法中的界面捕获。通常采用多边形非结构化网格，因为它们在梯度计算中的几何柔性和优越性。本研究提出了一种关于任意凸多边形电池的PLIC-VOF方法的分析界面重建算法。在多边形电池内的给定取向处的线界面通过分析技术定位。它已经成功地测试了四种不同的几何形状，这些不同的多边形网格中很常见。将本算法的计算效率与文献中的几种公布方案进行了比较。已经显示了所提出的算法，从而降低计算复杂度来产生更高的准确性。已经使用多边形网格上提出的分析PLIC技术进行了坝断裂问题的数值模拟。结果与文献中可用的实验数据吻合良好，这是在真正的多相流中的性能的演示。</ p> </摘要> </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-20811/'>《International Journal for Numerical Methods in Fluids》</a> <b style="margin: 0 2px;">|</b><span>2018年第6期</span><b style="margin: 0 2px;">|</b><span>共12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=Dai Dezhi&option=202" target="_blank" rel="nofollow">Dai Dezhi;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Tong Albert Y.&option=202" target="_blank" rel="nofollow">Tong Albert Y.;</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 Mechanical and Aerospace EngineeringThe University of Texas at ArlingtonArlington Texas;</p> <p>Department of Mechanical and Aerospace EngineeringThe University of Texas at ArlingtonArlington Texas;</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/1155.html" title="流体力学">流体力学;</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=analytical method&option=203" rel="nofollow">analytical method;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=multiphase flow&option=203" rel="nofollow">multiphase flow;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=PLIC&option=203" rel="nofollow">PLIC;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=polygonal mesh&option=203" rel="nofollow">polygonal mesh;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=unstructured mesh&option=203" rel="nofollow">unstructured mesh;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=VOF&option=203" rel="nofollow">VOF;</a> </p> <div class="translation"> 机译：分析方法;多相流动;PLIC;多边形网格;非结构化网格;vof; 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