本文選題：波浪形底板　切入點：消力池　出處：《系統(tǒng)仿真學(xué)報》2017年04期

【摘要】：采用VOF(Volume of Fluid)方法追蹤自由液面,輔以RNG(重正化群)k-?湍流模型封閉兩相流時均方程,對9種工況波浪形底板消力池自由水躍的水力特性進行數(shù)值模擬。研究發(fā)現(xiàn):波浪形底板表面附近有漩渦產(chǎn)生,沿順時針方向旋轉(zhuǎn);波浪形底板上壓強呈波浪狀分布,相鄰波峰和波谷的差值在水躍區(qū)沿程減小;在閘孔開度和底板粗糙度相同時,波浪形底板消力池的自由水躍長度和消能率隨進口斷面弗勞德數(shù)增加而增大。
[Abstract]:A VOF(Volume of fluid method was used to trace the free liquid surface, supplemented by RNG (renormalization group).In the turbulent model, the hydraulic characteristics of the free hydraulic jump of the wavy bottom stilling tank under nine conditions are numerically simulated by the equalization equation when the two-phase flow is closed.It is found that there is a swirl around the surface of the wavy bottom, which rotates clockwise, the pressure on the wavy bottom is wave-like, and the difference between the adjacent wave peaks and the trough decreases in the hydraulic jump region.When the opening of the sluice hole and the roughness of the bottom plate are the same, the free water jump length and the energy dissipation rate of the wave bottom stilling pool increase with the increase of Froude number of the inlet section.
【作者單位】： 西安理工大學(xué)陜西省西北旱區(qū)生態(tài)水利工程重點實驗室;
【基金】：國家自然科學(xué)基金(51578452,51178391) 陜西省科學(xué)研究計劃(2014K15-03-05) 陜西省教育廳重點實驗室科學(xué)研究計劃(15JS063)
【分類號】：TV135.2
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本文編號：1711456