本文選題：SPH + 邊界處理��； 參考：《水動(dòng)力學(xué)研究與進(jìn)展(A輯)》2017年02期

【摘要】：光滑粒子流體動(dòng)力學(xué)(smoothed particle hydrodynamics,SPH)方法是一種拉格朗日型無網(wǎng)格粒子方法,其中合適的邊界處理方法一直是方法取得高精度的關(guān)鍵。該文介紹了一種新興的SPH邊界處理方法——統(tǒng)一半解析壁面邊界條件處理方法(unified semi-analytical wall boundary conditions,USAW),并提出了兩種不規(guī)則粒子分布。USAW邊界處理方法結(jié)合不規(guī)則粒子分布能更方便地求解復(fù)雜邊界問題。模擬了Couette流、靜水和楔形體潰壩等算例,驗(yàn)證了方法處理復(fù)雜邊界問題的有效性。
[Abstract]:Smooth particle hydrodynamics (particle) is a Lagrangian meshless particle method, in which the proper boundary treatment method is the key to obtain high accuracy. In this paper, a new SPH boundary treatment method, unified semi-analytical wall boundary conditions, is introduced. Two methods of irregular particle distribution. USAW boundary treatment combined with irregular particle distribution are proposed. It is convenient to solve complex boundary problems. Numerical examples of Couette flow, static water and wedge-shaped dam break are simulated to verify the effectiveness of the proposed method in dealing with complex boundary problems.
【作者單位】： 上海交通大學(xué)船舶海洋與建筑工程學(xué)院;
【基金】：國家重點(diǎn)基礎(chǔ)研究計(jì)劃(973計(jì)劃,2014CB046801)~~
【分類號(hào)】：O241.3

【相似文獻(xiàn)】

相關(guān)期刊論文 前1條

1 申洪;;二維粒子分布均勻度測算方法研究[J];數(shù)理醫(yī)藥學(xué)雜志;1993年01期

，

本文編號(hào)：1796525