Claudio Selcan

Claudio Selcan
Universität der Bundeswehr München · Fakultät für Luft- und Raumfahrttechnik

Master of Science

About

18
Publications
2,983
Reads
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78
Citations
Citations since 2016
10 Research Items
56 Citations
2016201720182019202020212022024681012
2016201720182019202020212022024681012
2016201720182019202020212022024681012
2016201720182019202020212022024681012
Additional affiliations
February 2015 - present
Universität der Bundeswehr München
Position
  • Research Assistant

Publications

Publications (18)
Article
Boundary-layer disturbances on a cone in a hypersonic flow are investigated by heat flux sensors. The cone has a half-angle of 10.9 deg and is situated with a 0 deg angle of attack in a Mach 10 region of a conical nozzle in a shock-tunnel facility. There are three atomic layer thermopile heat flux sensors mounted at different chordwise positions in...
Article
Full-text available
Experimental determination of test gas caloric quantities in high-enthalpy ground testing is impeded by excessive pressure and temperature levels as well as minimum test timescales of short-duration facilities. Yet, accurate knowledge of test gas conditions and stagnation enthalpy prior to nozzle expansion is crucial for a valid comparison of exper...
Article
Experimental determination of test gas temperature and enthalpy in ground testing is a challenging task, particularly regarding excessive pressure and temperature levels as well as minimum characteristic time scales available in transient facilities. Accurate knowledge of test gas conditions and stagnation enthalpy in reentry experiments is, howeve...
Article
Full-text available
The current work investigates the aero-thermal impact of standing sound waves, excited in a straight channel geometry, on turbulent, separating and reattaching flow over a fence. Effects of distinct frequency resonant forcing (ReH = 10,050 and f = 122 Hz) are quantified by wall static pressure measurements and detailed convective heat transfer dist...
Article
Full-text available
In light of the background in periodic boundary-layer forcing as employed for flow control applications, the present work discusses the role of standing acoustic waves toward convective heat transfer modification in a turbulent straight channel flow. To this end, a dedicated low-speed wind-Tunnel facility is designed, analyzed, and built, and it is...
Article
The research effort investigates the aero-thermal ramifications of acoustically excited turbulent reattaching shear flow in the wake of an isolated fence obstacle. In order to contrast the effectiveness of traveling and standing sound wave excitations towards surface heat transfer modulation, the flow is stimulated with forcing frequencies and ampl...
Article
Full-text available
In an attempt to investigate the acoustic resonance effect of serpentine passages on internal convection heat transfer, the present work examines a typical high pressure turbine blade internal cooling system, based on the geometry of the NASA E3 engine. In order to identify the associated dominant acoustic characteristics, a numerical FEM simulatio...
Article
Full-text available
In light of the potential of acoustic excitation for heat transfer enhancement, the research effort herein is geared towards a better understanding of the underlying physical mechanisms of aero-thermal laminar and turbulent boundary layer development under the influence of directed sound excitation. An experimental measurement campaign is carried o...
Conference Paper
Full-text available
The present study is geared towards quantifying the effects of film cooling holes on turbine internal cooling passages. In this regard, tests are conducted in a generic stationary model, with evenly distributed rib type perturbators at 90°, constituting a passage blockage ratio of H/Dh = 0.3 and pitch-to-height ratio of P/H = 10. The 1/3H diameter...
Article
Full-text available
Cooling technology of gas turbine blades, primarily ensured via internal forced convection, is aimed towards withdrawing thermal energy from the airfoil. To promote heat exchange, the walls of internal cooling passages are lined with repeated geometrical flow disturbance elements and surface non-uniformities. Raising the heat transfer at the expens...

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