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本文采用数学方法,建立了挡板为椭圆型的文氏管喉口通流面积和挡板开度的普遍关系式,推导严密,方式简单,并通过实例证明了它的正确性。
In this paper, we establish a universal relationship between vent area and baffle opening of Venturi tube with baffle as ellipse by using mathematical method. The derivation is rigorous and simple, and its correctness is proved by an example.