【摘要】：水閘沖刷問題是水利工程中普遍存在的問題,諸多研究人員對(duì)該問題進(jìn)行了系統(tǒng)地研究,研究結(jié)果顯示使用汽車的廢舊輪胎對(duì)海漫段增大糙率,可以起到減少?zèng)_刷的作用。通過對(duì)比分析不同的湍流模型、數(shù)值計(jì)算方法、網(wǎng)格劃分尺度、壁面處理方法,最終采用RNG k-ε湍流模型、PISO算法,將整個(gè)流場(chǎng)劃分為67.27萬網(wǎng)格,選擇標(biāo)準(zhǔn)壁面函數(shù)對(duì)流場(chǎng)進(jìn)行模擬計(jì)算。計(jì)算結(jié)果與模型試驗(yàn)實(shí)測(cè)結(jié)果吻合較好,說明模型能更好地用于加糙后的流場(chǎng)模擬計(jì)算。
[Abstract]:The problem of sluice scour is a common problem in hydraulic engineering. Many researchers have systematically studied the problem. The results show that the use of used tires can reduce scour to increase the roughness of the sea flood section. By comparing and analyzing different turbulence models, numerical calculation methods, meshing scales and wall treatment methods, the RNG k-蔚 turbulence model and PISO algorithm are adopted to divide the whole flow field into six hundred and seventy two thousand six hundred and ninety nine grids. The standard wall function is selected to simulate the flow field. The calculated results are in good agreement with the measured results of the model test, which shows that the model can be used to simulate the roughened flow field better.
【作者單位】： 咸陽職業(yè)技術(shù)學(xué)院;內(nèi)蒙古農(nóng)業(yè)大學(xué)水利與土木建筑工程學(xué)院;
【基金】：國(guó)家自然科學(xué)基金項(xiàng)目(50169001) 咸陽職業(yè)技術(shù)學(xué)院院級(jí)科研基金項(xiàng)目(2013KYB05)~~
【分類號(hào)】：TV653
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本文編號(hào)：2461125