Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volume 1; Volume 7, Part 1American Society of Mechanical Engineers, 1988 - Arctic regions |
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Page 119
... chord ratio blades turbine with a high level of inlet turbulence . the configurations tested showed improvements in the operation range primarily by postponement of stall . NOMENCLATURE C blade chord length , m Dh rotors , and ( 7 ) ...
... chord ratio blades turbine with a high level of inlet turbulence . the configurations tested showed improvements in the operation range primarily by postponement of stall . NOMENCLATURE C blade chord length , m Dh rotors , and ( 7 ) ...
Page 121
... chord OS = 15 % chord 0 0.1 0.2 0.3 0.4 ( a ) Variation of ʼn with ( low solidity ) 60 50 40 77 % 30 h = 0.62 NACA 0021 20 10 S = 0.59 C = 0.075m R = 2.5 × 105 n = 4 OS % chord OS 15 % chord 0 0.1 0.2 Φ 0.3 0.4 ( b ) Variation of n with ...
... chord OS = 15 % chord 0 0.1 0.2 0.3 0.4 ( a ) Variation of ʼn with ( low solidity ) 60 50 40 77 % 30 h = 0.62 NACA 0021 20 10 S = 0.59 C = 0.075m R = 2.5 × 105 n = 4 OS % chord OS 15 % chord 0 0.1 0.2 Φ 0.3 0.4 ( b ) Variation of n with ...
Page 122
... chord the direction of blade rotation ( Figs . 5 ( a ) , 5 ( b ) ) show that reducing the backward sweep postpones stall in with This only a small reduction in the peak efficiency . is true at two different solidities of S = 0.44 ( Fig ...
... chord the direction of blade rotation ( Figs . 5 ( a ) , 5 ( b ) ) show that reducing the backward sweep postpones stall in with This only a small reduction in the peak efficiency . is true at two different solidities of S = 0.44 ( Fig ...
Contents
FLOATING PRODUCTION SYSTEMS | 1 |
OFFSHORE MECHANICS | 23 |
Early Production Systems in the North | 31 |
Copyright | |
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adsorber amplitude analysis angle Arctic Engineering axial bending buoyancy cable calculated coefficient compliant tower components Conference on Offshore curve damage diameter displacement drag coefficient drilling dynamic effect equation equipment fatigue finite element flexible floating production flow function horizontal hydrodynamic installation jacket kips length linear liquid limit load marine mass matrix maximum measured Mechanics and Arctic method mode mode shapes model tests modulus mooring line mooring system motion natural frequency nonlinear obtained Offshore Mechanics Offshore Technology Conference operation parameters performance pile pipe pipe materials pipeline platform pressure production riser random wave ratio response rope rotation RPIT shear shear modulus shear strength shown in Figure simulation soil static stiffness strength stress structure subsea surface syntactic foam tendon turbine uranium vane velocity vertical vessel water depth wave forces wave height wave power weight wellhead wire