เครื่องวัดกระแสน้ำ | No | 12642 | ||||||||
เครื่องวัดกระแสน้ำ | By | Cable way | 55 | lbs | ||||||
ยี่ห้อ | A-OTT | |||||||||
Model | V "ARK" | |||||||||
Test certificate by | A-OTT | year1966 | ||||||||
1 | Propeller | No | R | if n | < | 0.57 | v = | 0.2248n | +0.029 | m/s |
dia | 100 mm | if n | > | 0.57 | v = | 0.2441n | +0.018 | m/s | ||
< | 3.67 | v = | 0.2441n | +0.018 | m/s | |||||
if n | > | 3.67 | v = | 0.2490n | ||||||