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Pengyue Zhao, Xifeng Gao, Bo Zhao, Huan Liu, Jianwei Wu and Zongquan Deng
The aerodynamic properties of rotor systems operating within low Reynolds number flow field conditions are profoundly influenced by their geometric and flight parameters. Precise estimation of optimal airfoil parameters at different angles of attack is i...
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Ángel Antonio Rodríguez-Sevillano, Rafael Bardera-Mora, Alejandra López-Cuervo-Alcaraz, Daniel Anguita-Mazón, Juan Carlos Matías-García, Estela Barroso-Barderas and Jaime Fernández-Antón
The paper outlines an algorithm for the rapid aerodynamic evaluation of winglet geometries using the TORNADO Vortex Lattice Method. It is a very useful tool to obtain a first approximation of the aerodynamic properties and for performing an optimization ...
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Sekar Mano, RadhaKrishnan Ajay Sriram, Ganesan Vinayagamurthy, Subramania Nadaraja Pillai, Amjad Ali Pasha, Dwarshala Siva Krishna Reddy and Mustafa Mutiur Rahman
This numerical study reports the aerodynamic properties of a hybrid airship. The hybrid airships were designed by combining two semi-ellipsoids with a semi-discoid as the base model. From the base model, three different geometrics were identified to stud...
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Kun Zhang, Jianyao Yao, Wenxiang Zhu, Zhifu Cao, Teng Li and Jianqiang Xin
The thermal protection system (TPS) represents one of the most critical subsystems for vehicle re-entry. However, due to uncertainties in thermal loads, material properties, and manufacturing deviations, the thermal response of the TPS exhibits significa...
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Dmytro Pavlenko, Yaroslav Dvirnyk and Radoslaw Przysowa
Manufacturing costs, along with operational performance, are among the major factors determining the selection of the propulsion system for unmanned aerial vehicles (UAVs), especially for aerial targets and cruise missiles. In this paper, the design requ...
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Alessandro Airoldi, Paolo Bettini, Matteo Boiocchi, Giuseppe Sala
Pág. 13 - 15
The paper presents some engineering solutions for the development of innovative aerodynamic surfaces with the capability of progressive shape variation. A brief introduction of the most significant issues related to the design of such morphing structures...
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Daniel Gleichauf, Michael Sorg and Andreas Fischer
The evaluation of reduced laminar flow in the boundary layer of wind turbine rotor blades in operation introduced in this work enables estimations of wind turbine efficiency loss due to negative influence on the aerodynamic properties. This leads to a mo...
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Peter Weiand, Michel Buchwald and Dominik Schwinn
The German Aerospace Center is currently developing a new design environment for rotorcraft, which combines sizing, simulation and evaluation tasks into one toolbox. The complete environment applies distributed computation on the servers of the various i...
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Maurizio Arena, Christof Nagel, Rosario Pecora, Oliver Schorsch, Antonio Concilio and Ignazio Dimino
Nature has many striking examples of adaptive structures: the emulation of birds? flight is the true challenge of a morphing wing. The integration of increasingly innovative technologies, such as reliable kinematic mechanisms, embedded servo-actuation an...
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Yuji Takubo and Masahiro Kanazaki
Landing of supersonic transport (SST) suffers from a large uncertainty due to its highly sensitive aerodynamic properties in the subsonic domain, as well as the wind gusts around runways. At the vehicle design stage, a landing trajectory optimization und...
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Ruifan Hu, Yongliang Chen, Jifei Wu and Shuling Tian
At cryogenic temperatures, gases exhibit significant deviations from ideal behaviour, and the commonly employed gas model may inadequately represent the thermodynamic properties of cryogenic gases, subsequently impacting numerical simulations using vario...
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Luiz M. B. C. Campos and Manuel J. S. Silva
The safety zone around the flight path of a rocket is determined by the fall of debris in the case of an accidental explosion or commanded termination. The trajectory of a tumbling body in a vertical plane is determined by specifying the velocity, flight...
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Carlos Carbajosa, Alejandro Martinez-Cava, Eusebio Valero and Guillermo Paniagua
As high-pressure-turbines operate at extreme temperature conditions, base bleed can be applied at the trailing edge of the airfoils, enhancing the thermal protection along the trailing edge surface, but also disrupting the trailing edge flow and altering...
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Raquel Alonso Castilla, Florent Lutz, Joël Jézégou and Emmanuel Bénard
In the context of reducing the environmental footprint of tomorrow?s aviation, Distributed Electric Propulsion (DEP) has become an increasingly interesting concept. With the strong coupling between disciplines that this technology brings forth, multiple ...
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Jonathan Hilger and Markus Raimund Ritter
The Pazy wing aeroelastic benchmark is a highly flexible wind tunnel model investigated in the Large Deflection Working Group as part of the Third Aeroelastic Prediction Workshop. Due to the design of the model, very large elastic deformations in the ord...
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Zhenkai Zhang, Alessandro De Gaspari, Sergio Ricci, Chen Song and Chao Yang
This article presents a gradient-based aerodynamic optimization framework and investigates optimum deformations for a transonic airfoil equipped with morphing leading and trailing edges. Specifically, the proposed optimization framework integrates an inn...
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Dominique Paul Bergmann, Jan Denzel, Ole Pfeifle, Stefan Notter, Walter Fichter and Andreas Strohmayer
The high-power density and good scaling properties of electric motors enable new propulsion arrangements and aircraft configurations. This results in distributed propulsion systems allowing to make use of aerodynamic interaction effects between individua...
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Yun Chen, Yanjun Liu, Li Zhang and Xiaowei Yang
Turbine is one of the key components of the ocean thermal energy conversion system (OTEC), and its aerodynamic performance and geometric dimension affect the performance of the system directly. This paper proposes a design method for the radial inflow tu...
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Péter Bauer and Mihály Nagy
Research and industrial application can require custom high-level controllers for industrial drones. Thus, this paper presents the high-fidelity dynamic and control model identification of the DJI M600 Pro hexacopter. This is a widely used multicopter in...
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Nunzio Natale, Teresa Salomone, Giuliano De Stefano and Antonio Piccolo
Computational fluid dynamics is employed to predict the aerodynamic properties of the prototypical trailing-edge control surfaces for a small, regional transport, commercial aircraft. The virtual experiments are performed at operational flight conditions...
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