干旱地区农业研究
榦旱地區農業研究
간한지구농업연구
AGRICULTURAL RESEARCH IN THE ARID AREAS
2010年
2期
155-158
,共4页
VOF方法%标准k-ε模型%矩形渠道%机翼形%数值模拟
VOF方法%標準k-ε模型%矩形渠道%機翼形%數值模擬
VOF방법%표준k-ε모형%구형거도%궤익형%수치모의
VOF method%standard k-ε turbulence model%rectangular canal%airfoil-shaped%numerical simulation
采用VOF方法与标准k-ε紊流模型相耦合,对矩形农渠中三种不同收缩比的机翼形量水槽进行三维数值模拟,并将渠道下游断面水深、过流流量等数值计算结果与物理模型试验结果进行对比,结果表明,二者吻合得较好,从而证明采用三维CFD数值模型对实体模型内部流场的模拟是可靠的,为今后机翼形量水槽的深入研究和优化设计提供了新的方法和依据.
採用VOF方法與標準k-ε紊流模型相耦閤,對矩形農渠中三種不同收縮比的機翼形量水槽進行三維數值模擬,併將渠道下遊斷麵水深、過流流量等數值計算結果與物理模型試驗結果進行對比,結果錶明,二者吻閤得較好,從而證明採用三維CFD數值模型對實體模型內部流場的模擬是可靠的,為今後機翼形量水槽的深入研究和優化設計提供瞭新的方法和依據.
채용VOF방법여표준k-ε문류모형상우합,대구형농거중삼충불동수축비적궤익형량수조진행삼유수치모의,병장거도하유단면수심、과류류량등수치계산결과여물리모형시험결과진행대비,결과표명,이자문합득교호,종이증명채용삼유CFD수치모형대실체모형내부류장적모의시가고적,위금후궤익형량수조적심입연구화우화설계제공료신적방법화의거.
By means of conducting 3D numerical simulation on airfoil-shaped measuring-flume of 3 different contraction ratios in rectangular canal resorting to combination of VOF method and standard k-ε turbulence model, and comparing the numerical calculation results like downstream water depth at cross section, flow etc with physical model experiment, from which it can be seen that these data can match each other well, so the reliability of this kind of method to simulate the physical model internal flows is proved accordingly, and therefore the new concept can be referred to for further research and design optimization on air-foil-shaped measuring-flume.
