Search Results - "Yakinthos, K."

Aerodynamic efficiency and performance enhancement of fixed-wing UAVs by Panagiotou, P., Yakinthos, K.

“…The present work aims in providing guidelines for the aerodynamic and performance optimization of fixed-wing Unmanned Aerial Vehicles (UAVs) that operate in…”
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Conceptual design of a hybrid solar MALE UAV by Panagiotou, P., Tsavlidis, I., Yakinthos, K.

“…This study presents the conceptual design of a hybrid solar Medium-Altitude-Long-Endurance Unmanned-Aerial-Vehicle (MALE UAV) designed to perform…”
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Aerodynamic design of a MALE UAV by Panagiotou, P., Kaparos, P., Salpingidou, C., Yakinthos, K.

“…In the present study the aerodynamic design procedure of a Medium-Altitude-Long-Endurance (MALE) Unmanned-Aerial-Vehicle (UAV) is presented. The procedure is…”
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Winglet design and optimization for a MALE UAV using CFD by Panagiotou, P., Kaparos, P., Yakinthos, K.

“…In this study, a winglet optimization procedure for a Medium-Altitude-Long-Endurance (MALE) Unmanned-Aerial-Vehicle (UAV) is presented. The UAV layout,…”
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CFD modeling of a polymer solar collector by Martinopoulos, G., Missirlis, D., Tsilingiridis, G., Yakinthos, K., Kyriakis, N.

“…A polymer solar collector is developed and its behavior is investigated both experimentally and with computational fluid dynamics (CFD). Solar irradiation as…”
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Investigation of the heat transfer behaviour of a polymer solar collector for different manifold configurations by Missirlis, D., Martinopoulos, G., Tsilingiridis, G., Yakinthos, K., Kyriakis, N.

“…In order to further promote the utilization of solar thermal systems, solar collectors need to become more efficient and cost effective. This can be…”
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Thermodynamic analysis of recuperative gas turbines and aero engines by Salpingidou, C., Vlahostergios, Z., Misirlis, D., Donnerhack, S., Flouros, M., Goulas, A., Yakinthos, K.

“…•Thermodynamic models of three recuperative configurations were developed.•Heat exchanger design and engine geometrical constraints affect cycle…”
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Effect of turbulence intensity on the pressure drop and heat transfer in a staggered tube bundle heat exchanger by Vlahostergios, Z., Missirlis, D., Flouros, M., Albanakis, C., Yakinthos, K.

“…•The effect of turbulence intensity on pressure drop and heat transfer was studied.•Isothermal and non-isothermal measurements were performed.•Reynolds number…”
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Computational modeling of vortex breakdown control on a delta wing by Vlahostergios, Z., Missirlis, D., Yakinthos, K., Goulas, A.

“…► We present an effort to model the vortex breakdown phenomenon on a delta wing. ► The use of jet flaps is investigated with two eddy-viscosity turbulence…”
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Numerical development of a heat transfer and pressure drop porosity model for a heat exchanger for aero engine applications by Missirlis, D., Donnerhack, S., Seite, O., Albanakis, C., Sideridis, A., Yakinthos, K., Goulas, A.

“…Heat exchangers are used in various applications. In a typical CFD approach, where it is necessary to model the flow in a device with a heat exchanger, a first…”
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Modelling the Flow in a Transonic Diffuser with One Reynolds-Stress and Two Eddy-Viscosity Models by Vlahostergios, Z., Yakinthos, K.

“…Turbulence modeling combined with the mass averaged Navier-Stokes equations and detailed comparisons with experimental data are presented for a transonic flow…”
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Wind flow simulation over forested areas using a 3D RANS solver with a tree – scale approach by Kormas, A., Prospathopoulos, J.M., Chaviaropoulos, P.K., Yakinthos, K.

“…Wind flow over forested areas is simulated using a 3-D Reynolds Averaged Navier–Stokes solver, employing the Wilcox k–ω model modified for atmospheric flows…”
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The effect of heat transfer on the pressure drop through a heat exchanger for aero engine applications by Albanakis, C., Yakinthos, K., Kritikos, K., Missirlis, D., Goulas, A., Storm, P.

“…This work is focused on the experimental study of the performance of a heat exchanger designed for aero engine applications. The heat exchanger is operating as…”
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Performance assessment of a non-linear eddy-viscosity turbulence model applied to the anisotropic wake flow of a low-pressure turbine blade by Vlahostergios, Z., Sideridis, A., Yakinthos, K., Goulas, A.

“…► We model the wake flow produced by a LPT blade using a non-linear turbulence model. ► We use two interpolation schemes for the convection terms with…”
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Turbulent kinetic energy balance measurements in the wake of a low-pressure turbine blade by Sideridis, A., Yakinthos, K., Goulas, A.

“…The turbulent kinetic energy budget in the wake generated by a high lift, low-pressure two-dimensional blade cascade of the T106 profile was investigated…”
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Experimental analysis of the pressure drop and heat transfer through metal foams used as volumetric receivers under concentrated solar radiation by Albanakis, C., Missirlis, D., Michailidis, N., Yakinthos, K., Goulas, A., Omar, H., Tsipas, D., Granier, B.

“…The main objective of this work was to evaluate the behavior of porous materials, when treated as volumetric receivers under concentrated solar radiation. For…”
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Modeling the flow in a 90° rectangular duct using one Reynolds-stress and two eddy-viscosity models by Yakinthos, K., Vlahostergios, Z., Goulas, A.

“…A new effort to model the flow in a 90° rectangular duct by adopting three low-Reynolds-number turbulence models, two eddy-viscosity models (a linear and a…”
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Experimental and numerical investigation of the flow field through a heat exchanger for aero-engine applications by Missirlis, D., Yakinthos, K., Palikaras, A., Katheder, K., Goulas, A.

“…An experimental and computational study for the flow development through a heat exchanger for aero-engine applications is presented. The heat exchanger…”
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Separation-induced boundary layer transition: Modeling with a non-linear eddy-viscosity model coupled with the laminar kinetic energy equation by Vlahostergios, Z., Yakinthos, K., Goulas, A.

“…We present an effort to model the separation-induced transition on a flat plate with a semi-circular leading edge, using a cubic non-linear eddy-viscosity…”
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Modeling pressure drop of inclined flow through a heat exchanger for aero-engine applications by Missirlis, D., Yakinthos, K., Storm, P., Goulas, A.

“…In the present work further numerical predictions for the flow field through a specific type of a heat exchanger, which is planned to be used in the exhaust…”
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