Publications related to Fixed-wing aircraft

A wind-tunnel investigation of wind-turbine wakes in different yawed and loading conditions

Wind-turbine wakes have negative effects on wind-farm performance. They are associated with: (a) the velocity deficit, which reduces the generated power of downwind turbines; and (b) the turbulence level, which increases the fatigue loads on downwind turbi ...

2015

A Betz-Inspired Principle for Kite-Power Generation Using Tethered Wings

Dominique Bonvin, Grégory François, Sean Costello

This paper’s main contribution is a theoretical result that can be used to evaluate the maximum powergenerating potential of any kite-power system. An upper bound is derived for the power a wing can generate in a given wind speed. It is proven that the ang ...

2014

Optimization of an Airborne Wind Energy System Using Constrained Gaussian Processes

Colin Neil Jones, Ioannis Lymperopoulos, Sanket Sanjay Diwale

Wind resources tend to be significantly stronger and more consistent with increasing altitude. This effect creates a potential for power generation that can be reaped by an Airborne Wind Energy system positioned at elevations exceeding the height of conven ...

2014

Nonlinear Analysis of a Coaxial Microhelicopter with a Bell Stabilizer Bar

Philippe Müllhaupt, Basile Graf

Nonlinear modeling of coaxial microhelicopters is studied. All equations are derived using a Lagrangian approach and simplified aerodynamics assumptions so that all parameters have a physical meaning; there is no “black box.” The model is constructed with ...

Amer Helicopter Soc Inc2014

Fluid Flow Pattern Visualisation: An Alternative Approach Using Highly Resolved Heat Transfer Experiments

Peter Ott, Alexandros Terzis, Bernhard Weigand

The present study demonstrates an alternative approach for describing fluid flow characteristics very close to the wall, using locally resolved heat transfer experiments. Convection coefficients on the base surface and around a surface mounted vortex gener ...

2014

A Comparative Study of the Local Heat Transfer Distributions Around Various Surface Mounted Obstacles

Peter Ott, Alexandros Terzis, Dirk Ullmer, Robert Wyssmann

In many engineering applications, heat transfer enhancement techniques are of vital importance in order to ensure reliable thermal designs of convective heat transfer applications. This study examines experimentally the heat transfer characteristics on the ...

Science Press2014

Junctionless nano-electro-mechanical resonant transistor

Mihai Adrian Ionescu, Sebastian Thimotee Bartsch

A junctionless Nano-Electro-Mechanical (NEM) resonator, comprising a highly doped conductive channel (4) connecting a drain (9) and a source (10) electrode and movably fixed by at least two ends (11, 11') acting as said source and drain electrodes, respect ...

2014

Detection of Aircrafts on a Collision Course using Spatio-Temporal HOG

Pascal Fua, Vincent Lepetit, Artem Rozantsev, Christos Marios Christoudias

We have developed a method for the detection of both generic flight neighbouring aircrafts and those on a collision course. Our approach employs a sliding window linear Support Vector Machine (SVM) classifier with a Histogram of Oriented Gradients (HOG) fe ...

2013

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Fixed-wing aircraft

A wind-tunnel investigation of wind-turbine wakes in different yawed and loading conditions

A Betz-Inspired Principle for Kite-Power Generation Using Tethered Wings

Optimization of an Airborne Wind Energy System Using Constrained Gaussian Processes

Nonlinear Analysis of a Coaxial Microhelicopter with a Bell Stabilizer Bar

Fluid Flow Pattern Visualisation: An Alternative Approach Using Highly Resolved Heat Transfer Experiments

A Comparative Study of the Local Heat Transfer Distributions Around Various Surface Mounted Obstacles

Junctionless nano-electro-mechanical resonant transistor

Detection of Aircrafts on a Collision Course using Spatio-Temporal HOG

Vortical Flow Patterns for High Lift for High Speed Aircraft Concepts

Dynamic stall control by passive disturbance generators

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Nonlinear Analysis of a Coaxial Microhelicopter with a Bell Stabilizer Bar

A Comparative Study of the Local Heat Transfer Distributions Around Various Surface Mounted Obstacles

A wind-tunnel investigation of wind-turbine wakes in different yawed and loading conditions

Optimization of an Airborne Wind Energy System Using Constrained Gaussian Processes

A Betz-Inspired Principle for Kite-Power Generation Using Tethered Wings

Fluid Flow Pattern Visualisation: An Alternative Approach Using Highly Resolved Heat Transfer Experiments

Vortical Flow Patterns for High Lift for High Speed Aircraft Concepts

Detection of Aircrafts on a Collision Course using Spatio-Temporal HOG

Junctionless nano-electro-mechanical resonant transistor

Dynamic stall control by passive disturbance generators