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aerodynamic forces

The advantages of an unsteady panel method in modelling the aerodynamic forces on rigid flapping wings

The advantages of an unsteady panel method in modelling the aerodynamic forces on rigid flapping wings

... horizontal forces acting on a tethered sphingid ...latter forces are derived by subtracting estimates of the inertial forces from measured data that include both the aerodynamic and inertial ...

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Pseudorandom Noise Impulsive Response Analysis and Aerodynamic Forces of Unmanned Aerial Vehicle Structure

Pseudorandom Noise Impulsive Response Analysis and Aerodynamic Forces of Unmanned Aerial Vehicle Structure

... the forces of aerodynamics were found through the use of the device to find the aerodynamic forces affecting on UAV, where it was calculated the lift and drag forces and torque and the amount ...

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A computational study of the aerodynamic forces and power requirements of
dragonfly (Aeschna juncea) hovering

A computational study of the aerodynamic forces and power requirements of dragonfly (Aeschna juncea) hovering

... In the present study, we extend our previous two- dimensional study (Lan and Sun, 2001c) to a three-dimensional case. As a first step, we study the case of hovering flight. For the dragonfly Aeschna juncea in free ...

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Numerical Simulation of Flow and Determination of Aerodynamic Forces in the Balanced Control Valve

Numerical Simulation of Flow and Determination of Aerodynamic Forces in the Balanced Control Valve

... Using the obtained results of simulation a force characteristic of the valve was drawn up. It shows the force load of the shaft which continuously regulates valve travel and is connected to a servo-drive. It was also ...

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Dragonfly flight  I  Gliding flight and steady state aerodynamic forces

Dragonfly flight I Gliding flight and steady state aerodynamic forces

... these aerodynamic forces can be calculated from measurements of its glide angle, glide speed and body ...drag forces to be calculated. These forces represent the total lift and drag acting on ...

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The influence of wing–wake interactions on the production of aerodynamic forces in flapping flight

The influence of wing–wake interactions on the production of aerodynamic forces in flapping flight

... the aerodynamic forces generated by the back-and-forth wing motion of hovering insects may be conveniently separated into four components due to: added-mass acceleration, translational circulation, ...

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Force balance in the take off of a pierid butterfly: relative importance and timing of leg impulsion and aerodynamic forces

Force balance in the take off of a pierid butterfly: relative importance and timing of leg impulsion and aerodynamic forces

... sole aerodynamic wing force could explain the observed motion of the insect, we have firstly compared a simple analytical model of the wing force with the acceleration of the insect’s center of mass estimated from ...

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Neuromuscular control of aerodynamic forces and moments in the blowfly,
Calliphora vicina

Neuromuscular control of aerodynamic forces and moments in the blowfly, Calliphora vicina

... difficulty forces a trade-off between the number of kinematic parameters that may be sensibly measured and the length of time over which they can be ...of aerodynamic forces, such simultaneous ...

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Investigation of Aerodynamic Forces on Vehicle using CFD Technique

Investigation of Aerodynamic Forces on Vehicle using CFD Technique

... to aerodynamic forces like drag, lift, weight, side forces and thrust ...[7]. Aerodynamic drag is the result of interaction between the vehicle shell and the surrounding air ...[6]. ...

7

Effects of wing deformation on aerodynamic forces in hovering hoverflies

Effects of wing deformation on aerodynamic forces in hovering hoverflies

... We can now examine why the effect of the camber deformation on the aerodynamic forces is not very large. As measured by Walker et al., the angle of attack of the flapping wing of the insects is very high ...

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Unsteady aerodynamic forces of a flapping wing

Unsteady aerodynamic forces of a flapping wing

... the aerodynamic forces on a mechanical model of fruit fly wing in flapping motion, showed that when the translation velocity varied according to a trapezoidal function (TF) with large accelerations at ...

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An Experimental Investigation of the Effects of Canard Position on the Aerodynamic Forces of a Fighter Type Configuration Model

An Experimental Investigation of the Effects of Canard Position on the Aerodynamic Forces of a Fighter Type Configuration Model

... An extensive experimental investigation is conducted to study the effect of canard position - wind tunnel. The wing and the canard have triquetrous shapes. Experiments are conducted ! " # $ $ The canard at its up ...

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Numerical Analysis of the Influence of Particular Parts of the High Efficient Electric Vehicle on the Aerodynamic Forces

Numerical Analysis of the Influence of Particular Parts of the High Efficient Electric Vehicle on the Aerodynamic Forces

... Figure 8 shows the magnitude of the drag force acting on the individual vehicle components for the predefined air velocity v with and without the ground velocity. The largest magnitude of the drag force acts on the body ...

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Modelling and Analysis of a Car for Reducing Aerodynamic Forces

Modelling and Analysis of a Car for Reducing Aerodynamic Forces

... which specializes in solving CFD problems. In a view to simulate real life conditions we decided to simulate the forces acting on the car when it moves at a speed of 40 m/s (approx. 144 km/hr.) the choice for ...

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Choking: The Heimlich Abdominal Thrust vs Back Blows: An Approach to Measurement of Inertial and Aerodynamic Forces

Choking: The Heimlich Abdominal Thrust vs Back Blows: An Approach to Measurement of Inertial and Aerodynamic Forces

... Lower record shows single Heimlich maneuver that raised air pressure in lungs by 27 mm. Hg, as calculated using Boyle’s law for compression of gases[r] ...

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Into thin air: contributions of aerodynamic and inertial elastic forces
to wing bending in the hawkmoth Manduca sexta

Into thin air: contributions of aerodynamic and inertial elastic forces to wing bending in the hawkmoth Manduca sexta

... As a wing is flapped through the air and deformed by inertial and/or aerodynamic forces, its motions are damped by some combination of internal (e.g. elastic or structural) and external (fluid) mechanisms. ...

8

Ontogeny of aerodynamics in mallards: comparative performance and developmental implications

Ontogeny of aerodynamics in mallards: comparative performance and developmental implications

... of aerodynamic force ...measurable aerodynamic forces early (<8  days), and improved gradually throughout a 100  day ontogenetic ...delayed aerodynamic force production until just prior ...

10

On the calculation of dynamic derivatives using computational fluid dynamics

On the calculation of dynamic derivatives using computational fluid dynamics

... aerodynamic forces and moments are a function of the instantaneous values of the dis- turbance velocities, control angles and their ...the forces and moments on these variables is obtained by a ...

213

Simulation of Turbulent Flow around a Generic High-Speed Train Using Hybrid Models of RANS Numerical Method with Machine Learning

Simulation of Turbulent Flow around a Generic High-Speed Train Using Hybrid Models of RANS Numerical Method with Machine Learning

... the aerodynamic forces (as lift, drag, side and pressure coefficients) at different wind direction θ = 0°, 30°, 45° and 60° and constant velocity magnitude of the free stream with Re = ...and ...

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Aerodynamics of asymmetrical land speed record vehicles

Aerodynamics of asymmetrical land speed record vehicles

... opposite aerodynamic lateral forces when yawed by equal positive or negative angles around the vertical axis of ...significant aerodynamic forces are ...asymmetrical aerodynamic ...

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