本文選題：豎井旋流　切入點：數(shù)值模擬　出處：《人民長江》2017年03期 　論文類型：期刊論文

【摘要】：基于VOF法,分別選取標(biāo)準(zhǔn)k-ε紊流模型、RNG k-ε紊流模型和Realizable k-ε紊流模型,對某一超高水頭、大泄量豎井旋流泄洪洞的水力特性進行數(shù)值模擬,并將紊流模型計算結(jié)果與模型實驗數(shù)據(jù)進行了對比分析。結(jié)果表明:3種紊流模型模擬計算所得的空腔直徑、豎井壁面壓強、旋流角等參數(shù)變化趨勢與模型試驗測試結(jié)果基本相同,但量值有所差別。相比較而言,Realizable k-ε紊流模型計算所得旋轉(zhuǎn)水流的空腔直徑、壓坡底板與部分豎井壁面壓強、旋流角在量值上更接近試驗測量值。因此,Realizable k-ε紊流模型能夠更好地模擬這種具有超高水頭、大泄量、強旋轉(zhuǎn)并帶有自由液面旋轉(zhuǎn)水流的水力特性。
[Abstract]:Based on the VOF method, the standard k- 蔚 turbulence model and the Realizable k- 蔚 turbulence model are selected, respectively, to simulate the hydraulic characteristics of a high water head and large discharge shaft swirling flood discharge tunnel. The calculated results of the turbulent model are compared with the experimental data of the model. The results show that the cavity diameter and the wall pressure of the shaft are calculated by the simulation of the three kinds of turbulence models. The variation trend of swirl angle and other parameters is basically the same as that of the model test, but the values are different. Compared with the realizable k- 蔚 turbulence model, the cavity diameter of the rotating flow, the pressure on the bottom plate of the slope and the wall pressure of some vertical wells are calculated by using the realizable k- 蔚 turbulence model. The swirl angle is closer to the measured value, so the realizable k- 蔚 turbulence model can better simulate the hydraulic characteristics of the flow with super high head, large discharge, strong rotation and free surface rotation.
【作者單位】： 西北農(nóng)林科技大學(xué)水利與建筑工程學(xué)院;
【分類號】：TV135.2

【參考文獻】

相關(guān)期刊論文 前1條

1 栗帥;張建民;胡小禹;李君寧;何小瀧;;淹沒型旋流豎井泄洪洞流態(tài)過渡的數(shù)值模擬研究[J];四川大學(xué)學(xué)報(工程科學(xué)版);2014年04期

【共引文獻】

相關(guān)期刊論文 前10條

1 任巖;張飛;周梅;王娟;李曉航;張月;;基于Landsat 8影像的水體指數(shù)與地表水化學(xué)特征關(guān)系——以艾比湖流域為例[J];中國沙漠;2016年05期

2 趙寧;馬超;楊亞莉;;1973-2013年紅堿淖水域水質(zhì)變化及驅(qū)動力分析[J];湖泊科學(xué);2016年05期

3 程春梅;;基于歸一化光譜的渾濁水體葉綠素a濃度遙感估算[J];浙江水利水電學(xué)院學(xué)報;2016年04期

4 包穎;田慶久;陳e，

本文編號：1624306