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Some accuracy related aspects in two‐fluid hydrodynamic sub‐grid modeling of gas–solid riser flows

机译：一种精度相关方面的气固提升机流动的双流体流体动力子网格建模

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Abstract >Sub‐grid closures for filtered two‐fluid models (fTFM) useful in large scale simulations of riser flows can be derived from highly resolved simulations (HRS) with microscopic two‐fluid modeling (mTFM). Accurate sub‐grid closures require accurate mTFM formulations as well as accurate correlation of relevant filtered parameters to suitable independent variables. This article deals with both of those issues. The accuracy of mTFM is touched by assessing the impact of gas sub‐grid turbulence over HRS filtered predictions. A gas turbulence alike effect is artificially inserted by means of a stochastic forcing procedure implemented in the physical space over the momentum conservation equation of the gas phase. The correlation issue is touched by introducing a three‐filtered variable correlation analysis (three‐marker analysis) performed under a variety of different macro‐scale conditions typical or risers. While the more elaborated correlation procedure clearly improved accuracy, accounting for gas sub‐grid turbulence had no significant impact over predictions. </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”> <标题类型=“main”>抽象</ title> <P>用于过滤的两种流体模型（FTFM）的封闭件可用于大规模模拟的提升管流量，可以从高度分辨的模拟（HRS）导出，具有微观的两种流体建模（MTFM）。精确的子网格闭合需要准确的MTFM制剂，以及相关的滤波参数的准确相关性与合适的独立变量。本文涉及这两个问题。通过评估气体子栅极湍流的影响，通过评估HRS过滤的预测来触及MTFM的准确性。通过在气相的动量保守方程上的物理空间中实施的随机强制过程，通过在气相的动量保守方程中实现的随机强制过程是人工插入的气体湍流。通过引入在各种不同的宏观条件下进行的三个过滤的可变相关性分析（三标记分析）来触及相关问题，典型或立管的各种不同的宏观条件。虽然更精细的相关过程显然提高了准确性，但占气体潜水湍流的核算对预测没有显着影响。</ 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-18537/'>《AIChE Journal》</a> <b style="margin: 0 2px;">|</b><span>2020年第1期</span><b style="margin: 0 2px;">|</b><span>共13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=Mouallem Joseph&option=202" target="_blank" rel="nofollow">Mouallem Joseph;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Niaki Seyed R. A.&option=202" target="_blank" rel="nofollow">Niaki Seyed R. A.;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Chavez‐Cussy Norman&option=202" target="_blank" rel="nofollow">Chavez‐Cussy Norman;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Milioli Christian C.&option=202" target="_blank" rel="nofollow">Milioli Christian C.;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Milioli Fernando E.&option=202" target="_blank" rel="nofollow">Milioli Fernando E.;</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 EngineeringSchool of Engineering of S?o Carlos University of S?o PauloS?o Carlos Brazil;</p> <p>Department of Mechanical EngineeringSchool of Engineering of S?o Carlos University of S?o PauloS?o Carlos Brazil;</p> <p>Department of Mechanical EngineeringSchool of Engineering of S?o Carlos University of S?o PauloS?o Carlos Brazil;</p> <p>Department of Mechanical EngineeringSchool of Engineering of S?o Carlos University of S?o PauloS?o Carlos Brazil;</p> <p>Department of Mechanical EngineeringSchool of Engineering of S?o Carlos University of S?o PauloS?o Carlos Brazil;</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/238.html" title="化学工业">化学工业;</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=filtered closures&option=203" rel="nofollow">filtered closures;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=fluidization&option=203" rel="nofollow">fluidization;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=gas–particle flow&option=203" rel="nofollow">gas–particle flow;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=sub‐grid models&option=203" rel="nofollow">sub‐grid models;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=two‐fluid model&option=203" rel="nofollow">two‐fluid model;</a> </p> <div class="translation"> 机译：过滤封闭;流化;气体颗粒流;子网格模型;双流体模型; </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/0704022505731.html">Some accuracy related aspects in two‐fluid hydrodynamic sub‐grid modeling of gas–solid riser flows</a> <b>[J]</b> . <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Mouallem Joseph&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Mouallem Joseph,</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Niaki Seyed R. 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href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=刘燕&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor"> . 刘燕</a> <span> . 2010</span> </span> </div> </li> </ul> <ul style="display: none;"> <li> <div> <b>1. </b><a class="enjiyixqcontent" href="/patent-detail/061201066947.html">气相或气固两相流体实现全混流流动的反应器及方法</a> <b>[P]</b> . <span> 中国专利： CN101829534B </span> <span> . 2012.12.12</span> </div> </li> <li> <div> <b>2. </b><a class="enjiyixqcontent" href="/patent-detail/06120106035866.html">气相或气固两相流体实现全混流流动的反应器及方法</a> <b>[P]</b> . <span> 中国专利： CN101829534A </span> <span> . 2010-09-15</span> </div> </li> <li> <div> <b>3. </b><a class="enjiyixqcontent" href="/patent-detail/06130441256727.html">Fluid e.g. oil, flow in multilayer porous medium modeling method, involves discretizing each fractured layer by grid pattern, and calculating local flows between each fracture grid cell and associated matrix volume in pseudo-steady state</a> <b>[P]</b> . <span> 外国专利：  FR2850773A1 </span> <span> . 2004-08-06</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：流体例如油，多层多孔介质建模方法中的流动，涉及通过网格模式离散化每个裂缝层，并计算拟稳态下每个裂缝网格单元与相关基质体积之间的局部流动 </span> </p> </li> <li> <div> <b>4. </b><a class="enjiyixqcontent" href="/patent-detail/06130443523575.html">Fluid e.g. oil, flow in multilayer porous medium modeling method, involves discretizing each fractured layer by grid pattern, and calculating local flows between each fracture grid cell and associated matrix volume in pseudo-steady state</a> <b>[P]</b> . <span> 外国专利：  FR2837592A1 </span> <span> . 2003-09-26</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：流体例如油，多层多孔介质建模方法中的流动，涉及通过网格模式离散化每个裂缝层，并计算拟稳态下每个裂缝网格单元与相关基质体积之间的局部流动 </span> </p> </li> <li> <div> <b>5. </b><a class="enjiyixqcontent" href="/patent-detail/06130440135238.html">Apparatus for ensuring the flow of fluids through an external pipe, and methods to maintain the temperature of fluid flowing through an external pipe.To remove stagnant fluid in an external pipe with fluid flowing through the same, for treating fluid flowing through an external pipe.To remove solids formed in a pipe having fluid flowing through it.To depress a line connected with an underwater pipe flow upward extending to the superfu00eccie of water to remove sand from an external pipe.And to separate gas from lu00ecquidos in an external pipe</a> <b>[P]</b> . <span> 外国专利：  BR0215902A </span> <span> . 2005-08-09</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：用于确保流体通过外管的流动的设备以及用于维持流过外管的流体的温度的方法。用流过其的流体除去外管中的停滞流体，以处理流过外管的流体。去除流经其的管道中形成的固体;压低与水下管道相连的管线，管道向上延伸至水的表面，以去除外部管道中的沙子;并从管道中分离出气体外管 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