Alexandros Terzis

Cette personne n’est plus à l’EPFL

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Publications associées (27)

Heat Transfer and Performance Characteristics of Axial Cooling Fans with Downstream Guide Vanes

Peter Ott, Alexandros Terzis

This study examines experimentally the effect of stators on the performance and heat transfer characteristics of small axial cooling fans. A single fan impeller, followed by nine stator blades in the case of a complete stage, was used for all the experimen ...

2012

Swirl Jets in Crossflow at Low Velocity Ratios

Peter Ott, Alexandros Terzis, Charilaos Kazakos

This investigation examines experimentally the behavior of swirled jets produced by axial flow fans blowing into a crossflow at low velocity ratios. The main difference with non-swirl cases is an asymmetry of the dominant kidney vortex and a slight distort ...

2012

Influence of Thermocouple Thermal Inertia in Impingement Heat Transfer Experiments Using Transient Techniques

Peter Ott, Guillaume Wagner, Bernhard Weigand, Alexandros Terzis

A typical transient heat transfer experiment for an impingement cooling configuration requires usually a temperature step in the flow. A moving isotherm of the liquid crystal surface coating is then monitored using a video camera. However, for small imping ...

2012

Effect of Stators on the Performance and the Thermal Capabilities of Small Axial Cooling Fans

Peter Ott, Alexandros Terzis

This investigation examines experimentally the effect of stators on the performance curves and the heat transfer capabilities of small axial cooling fans. The experimental data indicated that the results are highly affected by the flow conditions at the fa ...

2011

Swirl Jet and Crossflow Interaction at Low Velocity Ratios and Incompressible Flows

Peter Ott, Alexandros Terzis

Swirl jets in crosflow are investigated experimentally and numerically. The main difference with non-swirl cases is an asymmetry of the dominant kidney vortex and a slight distortion of the jet trace downstream of the injection hole. Jet rotation, at relat ...

2011

On the Applicability of Oil and Dye Technique During the Design Phase and Operation of Experimental Rigs

Alexandros Terzis

In this paper, an oil and dye flow visualization technique applied in two different cases of experimental testing is described, namely a single fan in crossflow and the wake of a compressor cascade. In both cases, the mixture of paint was prepared using a ...

2011

Effects of Swirl Velocities From Fan Assemblies Mounted on Lifting Surfaces

Alexandros Terzis, Charilaos Kazakos, Nikolaos Papadopoulos

The penetration of a jet of fluid into a traversal moving stream is a basic configuration of a wide range of engineering applications, such as film cooling and V/STOL aircrafts. This investigation examines experimentally the effect of blowing ratio of fans ...

2011

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