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Simulation and Visual Tester Verification of Solid Propellant Slurry Vacuum Plate Casting

机译：固体推进剂浆料真空板铸造的仿真与视觉测试仪验证

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Abstract >Using an improved Carreau constitutive model, a numerical simulation of the casting process of a type of solid propellant slurry vacuum plate casting was carried out using the Flow3D software. Through the flow process in the orifice flow channel and the combustion chamber, the flow velocity of the slurry passing through the plate flow channel was quantitatively analyzed, and the viscosity, shear rate, and leveling characteristics of the slurry in the combustion chamber were qualitatively analyzed and predicted. The pouring time, pouring quality, and flow state predicted by the numerical simulation were verified using a visual tester consisting of a vacuum plate casting system in which a pouring experiment was carried out. Studies have shown that HTPB three‐component propellant slurry is a typical yielding pseudoplastic fluid. When the slurry flows through the flower plate and the airfoil, the fluid shear rate reaches its maximum value and the viscosity of the slurry decreases. The visual pouring platform was built and the experiment was controlled according to the numerically‐calculated parameters, ensuring the same casting speed. The comparison between the predicted casting quality and the one obtained in the verification test resulted in an error less than 10?%. Moreover, the error between the simulated casting completion time and the process verification test result was also no more than 10?%. Last, the flow state of the slurry during the simulation was consistent with the one during the experimental test. The overall leveling of the slurry in the combustion chamber was adequate and no relatively large holes and flaws developed during the pouring process. </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>使用改进的Carreau构成型模型，使用流量3D软件进行了一种固体推进剂浆料真空板铸件的铸造过程的数值模拟。通过流动通道和燃烧室中的流程，定量分析通过板流动通道的浆料的流速，燃烧室中浆料中的粘度，剪切速率和平整特性进行了定性分析并预测。通过由真空板铸造系统组成的视觉测试器来验证由数值模拟预测的倾倒时间，倾吐质量和流动状态，其中进行了浇注实验。研究表明，HTPB三组分推进剂浆料是典型的产量伪塑料。当浆料流过花板和翼型时，流体剪切速率达到其最大值，并且浆料的粘度降低。构建了视觉浇注平台，并根据数值计算的参数控制实验，确保相同的铸造速度。预测铸造质量与验证测试中获得的比较导致误差小于10？％。此外，模拟铸造完成时间和过程验证测试结果之间的误差也不超过10？％。最后，在模拟过程中浆料的流动状态与实验测试期间的浆料一致。燃烧室中浆料的整体平整是足够的，并且在浇注过程中没有产生的相对大的孔和缺陷。</ 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-29946/'>《Propellants, Explosives, Pyrotechnics》</a> <b style="margin: 0 2px;">|</b><span>2020年第6期</span><b style="margin: 0 2px;">|</b><span>共9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=Yue Wu&option=202" target="_blank" rel="nofollow">Yue Wu;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Zhuo Li&option=202" target="_blank" rel="nofollow">Zhuo Li;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Rong Lu&option=202" target="_blank" rel="nofollow">Rong Lu;</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>College of Chemical EngineeringInner Mongolia University of TechnologyInner Mongolia Hohhot 01005 China;</p> <p>College of ScienceInner Mongolia University of TechnologyInner Mongolia Hohhot 01005 China;</p> <p>China Aerospace Science &</p> <p>Industry CorporationInner Mongolia Hohhot 010051 China;</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/1837.html" title="爆炸物工业、火柴工业">爆炸物工业、火柴工业;</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=Solid propellant slurry&option=203" rel="nofollow">Solid propellant slurry;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Vacuum plate casting&option=203" rel="nofollow">Vacuum plate casting;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Numerical simulation&option=203" rel="nofollow">Numerical simulation;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Experimental study&option=203" rel="nofollow">Experimental study;</a> </p> <div class="translation"> 机译：固体推进剂浆料;真空板铸造;数值模拟;实验研究; 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