本文選題：MPS方法 + MLParticle-SJTU求解器��； 參考：《江蘇科技大學學報(自然科學版)》2017年05期

【摘要】：潰壩問題是我國防災減災工作中的一個突出問題.潰壩發(fā)生時,會對下游的結(jié)構(gòu)物產(chǎn)生劇烈的砰擊作用,并伴隨著自由液面的翻卷、破碎等強非線性現(xiàn)象.對這種短時間的自由面強非線性變化,基于網(wǎng)格的計算流體方法往往需要一些特殊的數(shù)值處理.文中采用本課題組自主開發(fā)的無網(wǎng)格粒子法求解器MLParticle-SJTU對二維帶斜坡、三維帶90°急彎的潰壩問題進行了模擬.研究了潰壩流的自由面演化,分析了潰壩流遭遇斜坡障礙物的復雜流動現(xiàn)象,并記錄下監(jiān)測點的波高時間歷程.通過MPS的數(shù)值模擬結(jié)果與試驗數(shù)據(jù)進行對比,兩者吻合較好.
[Abstract]:Dam break is a prominent problem in disaster prevention and mitigation in China. When the dam break occurs, it will produce severe slamming effect on the downstream structure, accompanied by strong nonlinear phenomena such as free liquid surface roll over and breakage. The mesh-based computational fluid method often requires some special numerical processing for the strong nonlinear variation of the free surface in a short time. In this paper, the meshless particle method solver (MLParticle-SJTU) developed by our team is used to simulate the dam-break problem with two and three dimensional slopes with 90 擄sharp bending. In this paper, the evolution of free surface of dam-break flow is studied, the complex flow phenomenon of dam-break flow against obstacles on slope is analyzed, and the time history of wave height at monitoring point is recorded. The numerical simulation results of MPS are in good agreement with the experimental data.
【作者單位】： 上海交通大學船舶海洋與建筑工程學院海洋工程國家重點實驗室;高新船舶與深海開發(fā)裝備協(xié)同創(chuàng)新中心;
【基金】：國家自然科學基金資助項目(51379125,51490675,11432009,51579145) 長江學者獎勵計劃基金資助項目(T2014099) 上海高校東方學者特聘教授崗位跟蹤計劃基金資助項目(2013022) 上海市優(yōu)秀學術(shù)帶頭人計劃基金資助項目(17XD1402300) 上海市船舶工程重點實驗室基金資助項目(K2015-11) 工信部數(shù)值水池創(chuàng)新專項VIV/VIM基金資助項目(2016-23/09)
【分類號】：TV122.4;TV87

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1 張馳;SPH和MPS方法在自由面粘性流場模擬中的應(yīng)用[D];上海交通大學;2012年

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