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van Arnhem, N. (author), Sinnige, T. (author), Stokkermans, T.C.A. (author), Eitelberg, G. (author), Veldhuis, L.L.M. (author)This paper addresses the effects of propeller installation on the aerodynamic performance of a tailplane featuring tip-mounted propellers. A model of a low aspect ratio tailplane equipped with an elevator and a tip-mounted propeller was installed in a low-speed wind-tunnel. Measurements were taken with an external balance and surface pressure...conference paper 2018
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Marcus, E. A.P. (author), de Vries, R. (author), Raju Kulkarni, A. (author), Veldhuis, L.L.M. (author)This paper addresses the aerodynamic performance and numerical modeling of over-the-wing propellers. Installing the propeller above a wing has the potential to increase wing lift-to-drag ratio, high-lift capabilities, and to reduce flyover noise. However, the prediction of its performance is difficult, since research on the aerodynamic...conference paper 2018
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Li, Q. (author), Liu, Xinyuan (author), Eitelberg, G. (author), Veldhuis, L.L.M. (author)This paper addresses the design of swirl recovery vanes for propeller propulsion in tractor configuration at cruise conditions using numerical tools. A multi-fidelity optimization framework is formulated for the design purpose, which exploits low-fidelity potential flow-based analysis results as input for high-fidelity Euler equation-based...conference paper 2018
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- Li, Q. (author), Öztürk, K. (author), Ragni, D. (author), Sinnige, T. (author), Eitelberg, G. (author), Veldhuis, L.L.M. (author), Yangang, Wang (author) conference paper 2017
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- van Gent, I. (author), la Rocca, G. (author), Veldhuis, L.L.M. (author) conference paper 2017
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- Jindal, Aman (author), Sinnige, T. (author), Hulshoff, S.J. (author), Veldhuis, L.L.M. (author) conference paper 2017
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de Vries, R. (author), Sinnige, T. (author), della Corte, B. (author), Avallone, F. (author), Ragni, D. (author), Eitelberg, G. (author), Veldhuis, L.L.M. (author)<br/>conference paper 2017
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della Corte, B. (author), Sinnige, T. (author), de Vries, R. (author), Avallone, F. (author), Ragni, D. (author), Eitelberg, G. (author), Veldhuis, L.L.M. (author)<br/>conference paper 2017
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Veldhuis, L.L.M. (author), van Craenenbroeck, Jorik (author)<br/>conference paper 2017
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Sinnige, T. (author), Ragni, D. (author), Eitelberg, G. (author), Veldhuis, L.L.M. (author)Pylon-mounted pusher propellers suffer from installation effects due to the interaction between the pylon and the propeller. The impact of angular inflow on these installation effects was quantified at the Large Low-Speed Facility of the German-Dutch wind tunnels (DNW-LLF). Particle-image-velocimetry measurements showed that the pylon wake's...conference paper 2016
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Sinnige, T. (author), Ragni, D. (author), Eitelberg, G. (author), Veldhuis, L.L.M. (author)The aerodynamic interaction e_ects characteristic of pusher propellers were studied at the Large Low-Speed Facility of the German{Dutch wind tunnels (DNW-LLF). A propeller model was positioned downstream of a pylon equipped with a trailing-edge blowing system. Surface-pressure transducers integrated into the propeller blades con_rmed the local...conference paper 2016
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Veldhuis, L.L.M. (author), Stokkermans, T.C.A. (author), Sinnige, T. (author), Eitelberg, G. (author)In this paper we address a preliminary assessment of the performance effects of swirl recovery vanes (SRVs) in a installed and uninstalled tractor propeller arrangement. A numerical analysis was performed on a propeller and a propeller-wing configuration after the SRVs were optimized first in a separate process. The SRVs are essentially...conference paper 2016
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Florjancic, D. (author), Steenhuizen, D. (author), Veldhuis, L.L.M. (author)Optimization of a single slotted flap with dropped hinge is performed with the objective of increasing the payload of a propeller driven 4-seater general aviation aircraft. Within the optimization loop, two-dimensional aerodynamic characteristics are evaluated using the MSES code, while three-dimensional aerodynamic characteristics and weight...conference paper 2016
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van Campenhout, O.W.G. (author), van Nesselrooij, M. (author), Veldhuis, L.L.M. (author), van Oudheusden, B.W. (author), Schrijer, F.F.J. (author)Although various experimental studies have confirmed a potential drag reduction of dimpled surfaces in turbulent boundary layers, the working mechanism behind the effect remains largely unresolved. The goal of this experimental study is to reveal the flow structures that could explain this drag reduction. To this end, flow visualizations over...conference paper 2016
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Sinnige, T. (author), Malgoezar, A.M.N. (author), Ragni, D. (author), Snellen, M. (author), Eitelberg, G. (author), Veldhuis, L.L.M. (author)An experimental investigation was performed at the Large Low-speed Facility of the German-Dutch wind tunnels (DNW-LLF) to study the pylon interactions associated with pusher propellers. The aerodynamic and aeroacoustic effects of pylon trailing edge blowing and swirl recovery vanes (SRVs) were evaluated. The pylon installation increased the...conference paper 2015
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- Sinnige, T. (author), Veldhuis, L.L.M. (author) conference paper 2015
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- Sinnige, T. (author), Lynch, K.P. (author), Ragni, D. (author), Eitelberg, G. (author), Veldhuis, L.L.M. (author) conference paper 2015
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- Sinnige, T. (author), van Kuijk, JJ (author), Lynch, K.P. (author), Ragni, D. (author), Eitelberg, G. (author), Veldhuis, L.L.M. (author) conference paper 2015
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Kotsonis, M. (author), Giepman, R. (author), Veldhuis, L.L.M. (author)A numerical investigation on the use of plasma actuators for transition control is presented. The numerical framework involves the solution of the full unsteady 2D incompressible Navier Stokes equations using a finite volume formulation. The set of equations is formulated by solving for the perturbations in the flow while a mean laminar boundary...conference paper 2011
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Correale, G. (author), Popov, I.B. (author), Ratikin, A.E. (author), Starikovskii, A.Y. (author), Hulshoff, S.J. (author), Veldhuis, L.L.M. (author)An experimental study of flow separation control with a nanosecond pulse plasma actuator was performed in wind-tunnel experiments. The discharge used had a pulse width of 12 ns and rising time of 3 ns with voltage up to 12 kV. Repetition frequency was adjustable up to 10 kHz. The first series of experiments was to measure integral effects of the...conference paper 2011