Drag Coefficient
Horizontal Strut-Arm Optimization Effects on Drag Coefficient
... parasitic drag on the wind turbine during operation. The use of low drag airfoils attachments to the struts is not to act as blades or provide structural stability but to reduce ...possible drag ...
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Gliding flight: drag and torque of a hawk and a falcon with straight and turned heads, and a lower value for the parasite drag coefficient
... parasite drag coefficient could plausibly more than double if a falcon turned its head at 70 m s −1 , and doubling the parasite drag coefficient has a marked effect on the velocity polar ...
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In situ drag coefficient measurements for rooftop trees
... speed. The critical wind speeds necessary to cause uprooting were calculated to be 65 m/s for the spruce, and 133 m/s for the shirakanba specimen, using Eq. 6. How- ever, additional pulldown tests on rooftop trees should ...
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The influence of numerical models on determining the drag coefficient
... aerodynamic drag coefficient in the transition from laminar to turbulent flow regimes, where the selection of a suitable numerical model is ...of drag coefficients of each model are compared with the ...
6
Influence Of Accelerations On The Drag Coefficient: A Golf Ball Case
... the drag exerted on the sphere increases under the effect of the acceleration, which is in agreement with the results of other authors ([10], [17]); [5] have shown that drag reduced under the effect of ...
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Field estimates of body drag coefficient on the basis of dives in passerine birds
... We have presented radar tracks of migrating passerine birds commencing rapid descents from their cruising altitude. The birds were tracked during their spring migration, and the dives probably represent the termination ...
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Effects of Partial Caudal Fin Amputation on the Kinematics and Metabolic Rate of Underyearling Sockeye Salmon (Oncorhynchus Nerka) At Steady Swimming Speeds
... caudal-fin trailing-edge amplitude, cm total drag coefficient body drag coefficient caudal- fin drag coefficient caudal-fin trailing-edge depth total power generated by locomotory moveme[r] ...
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The relationship between 3 D kinematics and gliding performance in the southern flying squirrel, Glaucomys volans
... lift coefficient, indicating that the wings are stalled, and a positive correlation between angle of attack and drag ...lift coefficient, but were uncorrelated with drag ...
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Computational Aerodynamic Analysis of Blended Wing Body Aircraft
... versus angle of attack (α) taken at different Mach numbers. It is observed that the variation of drag coefficient is very slow and almost constant at low angles of attack. In that range of α, C D is small, ...
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Wake analysis of aerodynamic components for the glide envelope of a jackdaw (Corvus monedula)
... body drag coefficient, in the case of mounted frozen bodies clearly independent of body angle or tail ...body drag coefficient we measured was too dramatic (more than a factor of two) to be ...
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Intra specific variation in wing morphology and its impact on take off performance in blue tits (Cyanistes caeruleus) during escape flights
... acceleration of the centre of mass of the body aspect ratio total wing span parasite drag coefficient of the body profile drag coefficient of the wing centre of mass of the body kinetic [r] ...
9
Submerged swimming of the great cormorant Phalacrocorax carbo sinensis is a variant of the burst and glide gait
... the drag coefficient and vice ...mass coefficient is the volume of the added mass divided by the volume of the ...mass coefficient close to zero while the same cylinder moving perpendicular to ...
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NACA65 3218 cross sectional airfoil. The wing is of 660 mm span
... and Drag analysis have been successfully studied experimentally, in an aircraft model using elliptical and semicircular winglets at 0 and 60 degree cant angle ...as drag coefficient, C D , lift ...
5
Petroleum products interface volume reduction in back-to-back batching
... hydraulic drag reduction, at least in the contact area of petroleum products, can reduce the interface ...that drag-reducing agents, usually injected into the flow of the transported liquid, can also be ...
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Numerical investigation for cooperative multi blimp system
... of drag and pressure force of cooperative configurations shape in several formations: vee, echelon, line and ...low drag effect of drag coefficient and lift coefficient which offered ...
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The Boundary layer over a flat plate
... the drag force measurements are shown ...the drag force, can be found in Appendix ...measured drag coefficient for laminar flow is observed to be slightly higher than the value from theory, ...
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Simulation of Passenger Car by Attaching Add On Device to Reduce Drag Force by CFD Approach
... reduce drag force by computational fluid dynamics (CFD) ...of drag coefficient, the three aspectal computational analysis was carried out using with the help of software tools like ANSYS-CFX to ...
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The control of flight force by a flapping wing: lift and drag production
... of drag which, even though lasting only a small portion of the stroke, substantially increase the mean ...the drag contributed by delayed stall during translation (≈2) is higher than that predicted by ...
20
The role of drag in insect hovering
... A puzzle about hovering along an inclined stroke plane is that quick estimates of required lift coefficients based on blade- element theory, assuming constant lift and drag coefficient, range from 3.5 to 6 ...
9
BODY DRAG, FEATHER DRAG AND INTERFERENCE DRAG OF THE MOUNTING STRUT IN A PEREGRINE FALCON,FALCO PEREGRINUS
... drag coefficient body drag coefficient skin friction coefficient, laminar boundary layer skin friction coefficient, turbulent boundary layer drag on an object body drag erroneous body dr[r] ...
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