中国农村水利水电
中國農村水利水電
중국농촌수이수전
CHINA RURAL WATER AND HYDROPOWER
2015年
1期
164-166,171
,共4页
调节阀%计算流体力学%C FD数值模拟
調節閥%計算流體力學%C FD數值模擬
조절벌%계산류체역학%C FD수치모의
control valve%computational fluid dynamics%CFD numerical simulation
基于C FD对直通式调节阀内部流场进行了二维数值模拟，并得到了内部流动参数的可视化图形。对比25％和5％两种开度下，阀门处的压力，速度以及能量损失都存在很大的差异。25％开度下的压力、流速有明显的下降趋势，而5％开度下压力和速度则迅速变化。＋两种开度下产生的涡流位置不同，5％开度下能量损失比25％开度下的要大。
基于C FD對直通式調節閥內部流場進行瞭二維數值模擬，併得到瞭內部流動參數的可視化圖形。對比25％和5％兩種開度下，閥門處的壓力，速度以及能量損失都存在很大的差異。25％開度下的壓力、流速有明顯的下降趨勢，而5％開度下壓力和速度則迅速變化。＋兩種開度下產生的渦流位置不同，5％開度下能量損失比25％開度下的要大。
기우C FD대직통식조절벌내부류장진행료이유수치모의，병득도료내부류동삼수적가시화도형。대비25％화5％량충개도하，벌문처적압력，속도이급능량손실도존재흔대적차이。25％개도하적압력、류속유명현적하강추세，이5％개도하압력화속도칙신속변화。＋량충개도하산생적와류위치불동，5％개도하능량손실비25％개도하적요대。
In this paper ,a two-dimensional numerical simulation was performed of the internal flow field of straightway pattern con‐trol valve using CFD ,and get the visual graphics of internal flow parameter .Compared to 25% and 5% of the two opening ,it is a big difference for the valve of the pressure ,velocity and energy loss .The pressure and flow velocity have obvious downtrend under the 25% opening ,while the pressure and speed change quickly under the 5% opening .The position of eddy current is different under the two opening ,and energy loss is bigger under the 5% opening .
