| 摘要 |
domestic water flowmeters. SUBSTANCE: flow shaper for creation of turbulence is mounted before slotted nozzle of flowmeter forming liquid jet oscillating due to Koand effect at inlet of confuser passage located before nozzle. Flow shaper is made in form of disk having holes of different diameters or slotted holes separated by extended strips. At laminar and transient modes, flow shaper straightens profile of velocity distribution at flow meter inlet. EFFECT: linearity of flowmeter characteristics; extended range of measurements towards low flow rates at low Reynolds number. 9 cl, 7 dwg
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