aerodynamic efficiency
Aerodynamic efficiency of flapping flight: analysis of a two stroke model
... have aerodynamic efficiency close to, but slightly lower than, the optimal steady ...the aerodynamic cost function in the parameter space can be ...
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Enhancement of Aerodynamic Efficiency of Truck-Trailer
... Geometry: A basic 3d model of the freight vehicle was designed with a simple cuboidal shaped trailer with sixteen tyres on the trailer and four tyres under the truck body. CAD software NX8 Unigraphics is used for the ...
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Modelling of Wind Turbine by Aerodynamic Efficiency in a Wind Energy Conversion System
... From “equation (12)”, the mechanical power of a wind turbine is determined by several factors. Among them are (i) Wind velocity, (ii) Blade radius (iii) Blade pitch angle (iv) Tip speed ratio (TSR), the tip speed ratio ...
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Air Suction and Blowing as Effective Means to Increase Aerodynamic Efficiency of a Tiltrotor Wing-Fuselage Junction
... Using these configurations, a remarkable increment in the lift coefficient (+15% for the slot 1500x125 mm at the highest mass flow rate, figure 3(a)) was achieved with respect to the baseline. Also the drag grew (figure ...
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On the Use of Wing Adaptation and Formation for Improved Aerodynamic Efficiency
... the aerodynamic benefits of formation flight were presented by Wieselsberger, 9 who suggested that a vee-formation shape results in equal distribution of the drag benefits among all the birds in a ...
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Wind turbine blade design
... their aerodynamic deficiencies. This increase in structural efficiency can be used to minimise the use of structural materials and allow significant weight reductions ...for aerodynamic ...
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Reduction of Induced Drag by Single Slotted Raked Wingtip
... on aerodynamic efficiency were observed above 6 o angle of ...of aerodynamic efficiency were increased for all the three Reynolds ...that, aerodynamic efficiency was higher for ...
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An investigation into wing in ground effect aerofoil geometry
... The NACA 0012 produces peak aerodynamic efficiencies in excess of the DHMTU at h/c=0.2 and 0.3 and comparable at 0.1. This however is not the only measure of performance of the sections, as the DHMTU produces ...
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Effect of trailing edge roundness on FX 63 137 and Seling S1223 Airfoil
... High lift airfoils like Wortmann FX 63-137 and Selig S1223 [1] are two of the very popular airfoils for the low Reynolds number regime in which high lift cargo planes, unmanned aerial vehicles (UAVs) and vehicles of ...
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Performance Analysis of Winglet using CFD
... increase aerodynamic efficiency after attaching the winglet at wingtip, also to find the aerodynamic performance with different cant angles and angle of ...the aerodynamic efficiency in ...
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Aerodynamic Analysis of Multi Element Airfoil
... the aerodynamic properties of a NACA 4412 and 0012 ...and aerodynamic forces, it is found that multi element with tail airfoil has better aerodynamic efficiency at different flap and slat ...
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Flight of the dragonflies and damselflies
... sequences, individuals and species. These values mean that, for the dragonflies to fly, they must generate 221% of the power that would be necessary to produce the same lift with perfect aerodynamic ...
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Numerical investigation of the coupled interaction between an unsteady aerodynamic flow field and a water film coating on a circular cylinder
... obtained from the combinations of loading previously examined (Section 3.1, Taylor and Robertson, 2011), indicating that for the present conditions there was a maximum thickness of rivulet which could form before ...
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Development Of Aerodynamic Smoke Tunnel Unit For Teaching And Learning
... The smoke tunnel is one of method to visualize the aerodynamic flow trajectory occurred on small scale vehicle model. This equipment designed to help the lecturer to visualize and explain about aerodynamic ...
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Into thin air: contributions of aerodynamic and inertial elastic forces to wing bending in the hawkmoth Manduca sexta
... than aerodynamic forces (Ellington, 1984b; Lehmann and Dickinson, 1997; Wilkin and Williams, 1993; Zanker and Gotz, 1990), whereas other studies conclude the opposite (Sun and Tang, 2002b; Wakeling and Ellington, ...
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The energetic cost of variations in wing span and wing asymmetry in the zebra finch Taeniopygia guttata
... the aerodynamic models and care must be taken when using models for birds that are in moult or have undergone stresses, which have a different wing shape from the ...
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Improved cost energy comparison of permanent magnet generators for large offshore wind turbines
... In this study the diameter of the direct-drive generator was limited to 7m – this was assumed to be pragmatic in terms of transportation – and based on an air-cooled design. The optimisation consistently delivered ...
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Rotorblade Aerodynamic Performance Evaluation
... cover aerodynamic theory review, mainly on lift and drag ...rotorblade aerodynamic lift and drag performance was based under incompressible, subsonic flow ...
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Aerodynamic Study On An Aircraft
... 2 Aerodynamic problems can be identified in a number of ways. The flow environment defines the first classification criterion. External aerodynamics is the study of flow around solid objects of various shapes. ...
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Issues in the design of switched linear systems: a benchmark study
... deviation of the rate of change of the pitch angle reflects the actuator activity over the medium and long term and is required to remain less than (0.4V-1.8) deg/s over the operating range of mean wind speeds up to 24 ...
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