EFFECT OF INLET DIAMETER ON THE DISCHARGE COEFFIENTS OF TOROIDAL- THROAT CRITICAL-FLOW VENTURI NOZZLES

机译：进气口直径对环喉临界流文氏管喷嘴排量系数的影响

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The effect of the inlet diameter D_(in) on the discharge coefficient Cd of critical-flow Venturi nozzle with a toroidal throat is investigated in the laminar boundary layer region. D_(in) ranged from 5.00D to 1.73D, which were obtained by shaving the inlet of a high-precision nozzle that was originally complying with ISO 9300. Flat, freestanding lip, and frustum inlets were investigated.

机译：在层流边界层区域研究了入口直径D_（in）对具有环形喉的临界流文丘里喷嘴的排放系数Cd的影响。 D_（in）的范围为5.00D至1.73D，这是通过剃除最初符合ISO 9300的高精度喷嘴的进口获得的。对扁平，独立式唇缘和平截头体的进口进行了研究。

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《5th Joint ASME(American Society of Mechanical Engineers)/JSME(Japanese Society of Mechanical Engineers) Fluids Engineering Division Summer Conference 2007(FEDSM2007)》|2007年|P.29|共1页
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Masahiro Ishibashi; Toshihiro Morioka;
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中图分类工程流体力学;
关键词
Cd: discharge coefficient; D: throat diameter; D_m: inlet diameter of nozzle; D_(out): outlet diameter of frustum inlet; R: inlet curvature; Re: the Reynolds number based on D and stagnation viscosity and theoretical flowrate; CFVN: critical-flo;

机译：Cd：排放系数; D：喉部直径; D_m：喷嘴的入口直径; D_（out）：圆锥台入口的出口直径; R：入口曲率; Re：基于D和滞流粘度和理论流量的雷诺数; CFVN：临界流;

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EFFECT OF INLET DIAMETER ON THE DISCHARGE COEFFIENTS OF TOROIDAL- THROAT CRITICAL-FLOW VENTURI NOZZLES

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