CAJ | 학술논문

利用C FD技术，模拟计算了两种调节阀简化模型的流量特性曲线，其中扇形模型的流通面积与行程之间是线性关系，而环形模型的流通面积与行程之间是平方关系。针对一种工程应用的网孔型套筒阀提出了优化方案并比较了优化前后的流量特性，优化前的网孔型套筒阀网孔数量均匀分布，而优化后的网孔数量逐渐递增。结果表明，扇形模型的流量特性曲线接近直线型，而环形模型的流量特性曲线接近对数型；优化前的网孔型套筒阀的流量特性曲线为直线型，优化后则为抛物线型，可以满足其他的流量调节需求。
이용C FD기술，모의계산료량충조절벌간화모형적류량특성곡선，기중선형모형적류통면적여행정지간시선성관계，이배형모형적류통면적여행정지간시평방관계。침대일충공정응용적망공형투통벌제출료우화방안병비교료우화전후적류량특성，우화전적망공형투통벌망공수량균균분포，이우화후적망공수량축점체증。결과표명，선형모형적류량특성곡선접근직선형，이배형모형적류량특성곡선접근대수형；우화전적망공형투통벌적류량특성곡선위직선형，우화후칙위포물선형，가이만족기타적류량조절수구。
Flow characteristic curve of two kinds of simplified control valve are simulated based on CFD software .The fan-valve with the linear relationship between the flow channel area and travel ,and the circular-valve with the square relationship are studied .Mo‐reover ,a kind of perforated sleeve valve for engineering and its improved type is simulated .The perforation of the original valve is distributed uniformly and the improved valve is incremental .Results show that the flow characteristic curve of fan-valve close to the linear type ,and the curve of circular-valve close to the logarithmic type .The flow characteristic curve of the original perforated sleeve valve is a linear type ,and the improved valve is parabolic type ,which can reach different requirements of regulation .