Searched for: author:"Kotsonis, M."
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Droste, B. (author), Van Gent, R. (author), Straathof, M. (author), Steenhuizen, D. (author), Kotsonis, M. (author), Geuskens, F. (author), Shroff, S. (author), Guerriero, G. (author), Gangoli Rao, A. (author), Lada, C. (author), Dewanji, D. (author), Yu, H. (author), Schroijen, M. (author), Hoekstra, J. (author), The CleanEra Team (author)
The CleanEra project was initiated with the goal of developing revolutionary ideas for civil aviation. These ideas were to offer solutions which would limit and reduce some of the negative aspects of aviation, namely: emissions and the use of resources. This book presents you with the highlights of this journey in search of new technologies for...
book 2015
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Groot, K.J. (author), Serpieri, J. (author), Kotsonis, M. (author), Pinna, Fabio (author)
conference paper 2017
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Kotsonis, M. (author), Boon, P. (author), Veldhuis, L. (author)
This paper describes the experimental investigation of the properties of Dielectric Barrier Discharge (DBD) actuators aimed at transition delay techniques. A wide range of geometrical configurations are tested as well as several electrical operational conditions. For the majority of the measurements statistical data for the induced flow field...
conference paper 2009
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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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Serpieri, J. (author), Kotsonis, M. (author)
In this work the flow visualization of the transition pattern occurring on a swept wing in a subsonic flow is presented. This is done by means of fluorescent oil flow technique and boundary layer hot-wire scans. The experiment was performed at Reynolds number of 2:15 . 106 and at angle of attack of -3º. At these conditions, three different flows...
conference paper 2015
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Yadala Venkata, Srikar (author), Hehner, M.T. (author), Serpieri, J. (author), Benard, Nicolas (author), Kotsonis, M. (author)
undergoing cross-flow instability (CFI) induced transition. Dielectric barrier...
conference paper 2018
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Van Ingen, J.L. (author), Kotsonis, M. (author)
A correction to the eN method for transition prediction, that at present is in use at Delft University, is developed and tested. The existing method is based on solutions of the Falkner-Skan similar boundary layer equation without suction or blowing. The correction is based on additional solutions of this equation with suction and blowing. For...
conference paper 2011
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Kotsonis, M. (author), Ghaemi, S. (author), Giepman, R.H.M. (author), Veldhuis, L.L.M. (author)
An experimental investigation on thrust and body force of Dielectric Barrier Discharge (DBD) /plasma actuators aimed at low power flow control applications is presented. A parametric study on thrust is conducted for a wide range of geometrical configurations as well as several electrical operational conditions. Direct measurements of the induced...
conference paper 2010
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Serpieri, J. (author), Kotsonis, M. (author)
Time-resolved PIV measurements of the secondary instability modes of cross-flow vortices are presented. Measurements are performed on a large scale 45o swept wing at chord Reynolds number of 2.17 million in a low turbulence wind-tunnel facility. Using acquisition frequencies of 20 kHz, the present study is the first experimental demonstration...
conference paper 2017
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Michelis, Theodorus (author), Kotsonis, M. (author), Yarusevych, S. (author)
The present study considers the development of a Laminar Separation Bubble on the suction side of a NACA0018 airfoil under natural and forced conditions. Deterministic forcing is applied by means of a two-dimensional plasma actuator installed on the airfoil surface. The spatiotemporal characteristics of the bubble are measured using time...
conference paper 2017
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Rius Vidales, A.F. (author), Kotsonis, M. (author), Antunes, Alexandre (author), Cosin, Renato (author)
An experimental investigation was carried out to examine the effect of two-dimensional Forward Facing Steps surface irregularities, on the laminar-to-turbulent boundary-layer transition on a 45° swept-wing. For the clean reference case, the numerical boundary-layer flow is calculated from pressure measurements, and a thorough linear stability...
conference paper 2018
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Tol, H.J. (author), de Visser, C.C. (author), Kotsonis, M. (author)
This paper presents a study on control of fluid flows using multivariate spline reduced order models. A new approach is presented for model reduction of the incompressible Navier-Stokes equations using multivariate splines defined on triangulations. State space descriptions are derived that can be used for control design. This paper considers...
conference paper 2016
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Rizzo, Paolo (author), Serpieri, J. (author), Kotsonis, M. (author)
The present work is an experimental investigation of stationary crossflow (CF) instability-induced transition of the boundary layer over a 45°swept wing, under varying free-stream turbulence, surface roughness, angle of attack and Reynolds number. Key topological features of the transition front, such as the mean transition location and the...
conference paper 2019
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Kotsonis, M. (author)
doctoral thesis 2012
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Serpieri, J. (author), Kotsonis, M. (author)
In this study, experiments are performed towards the identification and measurement of unsteady modes occurring in a transitional swept wing boundary layer. These modes are generated by the interaction between the primary stationary and travelling cross-flow instabilities or by secondary instability mechanisms of the stationary cross-flow...
journal article 2018
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Zong, H. (author), Kotsonis, M. (author)
The performance of a two–electrode plasma synthetic jet actuator (PSJA) is investigated for a wide range of dimensionless actuation frequencies (f*) using high-speed phase-locked Particle Imaging Velocimetry (PIV) measurements. The jet-induced velocity fields in the axisymmetric plane are measured during both...
journal article 2017
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Kotsonis, M. (author), Veldhuis, L. (author)
An experimental investigation is performed on the operation of dielectric barrier discharge plasma actuators used as manipulators of secondary and unsteady flow structures such as boundary layer instabilities or shedding vortices. The actuators are tested mainly in pulse mode. High sample rate hot-wire measurements of the induced velocity field...
journal article 2010
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Wang, Y. (author), Li, Q. (author), Eitelberg, G. (author), Veldhuis, L.L.M. (author), Kotsonis, M. (author)
Swirl recovery vanes (SRVs) are a set of stationary vanes located downstream from a propeller, which may recover some of the residual swirl from the propeller, hoping for an improvement in both thrust and efficiency. The SRV concept design for a scaled version representing the Fokker 29 propeller is performed in this paper, which may give rise...
journal article 2014
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Zong, H. (author), Kotsonis, M. (author)
, and the peak lift...
journal article 2018
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Zong, H. (author), Kotsonis, M. (author)
journal article 2017
Searched for: author:"Kotsonis, M."
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