首页> 外文期刊>International Journal for Numerical Methods in Fluids >An incompressible smoothed particle hydrodynamics scheme for Newtonian/non‐Newtonian multiphase flows including semi‐analytical solutions for two‐phase inelastic Poiseuille flows

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An incompressible smoothed particle hydrodynamics scheme for Newtonian/non‐Newtonian multiphase flows including semi‐analytical solutions for two‐phase inelastic Poiseuille flows

机译：用于牛顿/非牛顿多相流量的不可压缩的平滑粒子流体动力学方案，包括两相梭形流量流动的半分析解决方案

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Summary >An incompressible smoothed particle hydrodynamics (ISPH) method is developed for the modeling of multiphase Newtonian and inelastic non‐Newtonian flows at low density ratios. This new method is the multiphase extension of Xenakis et al, J. Non‐Newtonian Fluid Mech., 218, 1‐15, which has been shown to be stable and accurate, with a virtually noise‐free pressure field for single‐phase non‐Newtonian flows. For the validation of the method a semi‐analytical solution of a two‐phase Newtonian/non‐Newtonian (inelastic) Poiseuille flow is derived. The developed method is also compared with the benchmark multiphase case of the Rayleigh Taylor instability and a submarine landslide, thereby demonstrating capability in both Newtonian/Newtonian and Newtonian/non‐Newtonian two‐phase applications. Comparisons with analytical solutions, experimental and previously published results are conducted and show that the proposed methodology can accurately predict the free‐surface and interface profiles of complex incompressible multi‐phase flows at low‐density ratios relevant, for example, to geophysical environmental applications. </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 Type =“Main”XML：Lang =“en”XML：ID =“FLD4802-ABS-ABS-0001”> <标题类型=“main”>摘要</ title> >为低密度比下的多相牛顿和非弹性非牛顿流动建模开发了不可压缩的平滑粒子流体动力学（ISPH）方法。这种新方法是Xenakis等，J.非牛顿流体机械的多相扩展。，218,1-15，已被证明是稳定和准确的，具有几乎无辐射的单相的压力场-newtonian流动。为了验证方法，推导出两相牛顿/非牛顿（无弹性）Poiseuille流的半分析解决方案。还与瑞利泰勒不稳定和潜艇滑坡的基准多相情况进行了比较了开发的方法，从而在牛顿/牛顿和牛顿/非牛顿两相应用中展示了能力。进行了分析解决方案的比较，实验和先前公布的结果，并表明所提出的方法可以准确地预测复合不可压缩的多相流的自由表面和界面曲线，例如，在低密度比例中，例如，地球物理环境应用。 </ 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>2020年第7期</span><b style="margin: 0 2px;">|</b><span>共24页</span> </div> </li> <li> <div class="author"> <span class="lefttit">作者</span> <p id="fAuthorthree" class="threelineshidden zhankaihshouqi"> </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"> </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=incompressible SPH&option=203" rel="nofollow">incompressible SPH;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=inelastic non‐Newtonian&option=203" rel="nofollow">inelastic non‐Newtonian;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=landslides&option=203" rel="nofollow">landslides;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=multi‐phase flows&option=203" rel="nofollow">multi‐phase flows;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=semi‐analytical two phase non‐Newtonian&option=203" rel="nofollow">semi‐analytical two phase non‐Newtonian;</a> </p> <div class="translation"> 机译：不可压缩的SPH;无弹性非牛顿;山体滑坡;多相流动;半分析两相非牛顿; </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/0704022976195.html">An incompressible smoothed particle hydrodynamics scheme for Newtonian/non‐Newtonian multiphase flows including semi‐analytical solutions for two‐phase inelastic Poiseuille flows</a> <b>[J]</b> . <span> <a 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