Search Results - "Astarita, Tommaso"

Main results of the 4th International PIV Challenge by Kähler, Christian J., Astarita, Tommaso, Vlachos, Pavlos P., Sakakibara, Jun, Hain, Rainer, Discetti, Stefano, La Foy, Roderick, Cierpka, Christian

“…In the last decade, worldwide PIV development efforts have resulted in significant improvements in terms of accuracy, resolution, dynamic range and extension…”
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Heat flux sensors for infrared thermography in convective heat transfer by Carlomagno, Giovanni Maria, de Luca, Luigi, Cardone, Gennaro, Astarita, Tommaso

“…This paper reviews the most dependable heat flux sensors, which can be used with InfraRed (IR) thermography to measure convective heat transfer coefficient…”
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Perspective Camera Model With Refraction Correction for Optical Velocimetry Measurements in Complex Geometries by Paolillo, Gerardo, Astarita, Tommaso

“…Camera calibration is among the most challenging aspects of the investigation of fluid flows around complex transparent geometries, due to the optical…”
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Heat transfer enhancement of impinging jets with fractal-generated turbulence by Cafiero, Gioacchino, Discetti, Stefano, Astarita, Tommaso

“…A new passive method for the heat transfer enhancement of circular impinging jets is proposed and tested. The method is based on enhancing the mainstream…”
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Effects of the swirl number, Reynolds number and nozzle-to-plate distance on impingement heat transfer from swirling jets by Paolillo, Gerardo, Greco, Carlo Salvatore, Astarita, Tommaso, Cardone, Gennaro

“…•IR Thermography is applied to measure heat transfer from impinging swirling jets.•The swirl number and impingement distance influence the shape of the heat…”
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Fast 3D PIV with direct sparse cross-correlations by Discetti, Stefano, Astarita, Tommaso

“…The extension of the well-assessed high-accuracy algorithms for two-dimensional-two components particle image velocimetry (PIV) to the case of…”
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A fast multi-resolution approach to tomographic PIV by Discetti, Stefano, Astarita, Tommaso

“…Tomographic particle image velocimetry (Tomo-PIV) is a recently developed three-component, three-dimensional anemometric non-intrusive measurement technique,…”
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A semi-empirical correlation for the swirl number of swirling jets generated by a radial-type swirler by Paolillo, Gerardo, Greco, Carlo Salvatore, Cardone, Gennaro, Astarita, Tommaso

“…This work presents a semi-empirical correlation for the swirl number of a radial-type swirl generator under different conditions of both the Reynolds number…”
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Effect of the grid geometry on the convective heat transfer of impinging jets by Cafiero, Gioacchino, Castrillo, Giusy, Greco, Carlo Salvatore, Astarita, Tommaso

“…•Experimental investigation of an impinging jet with a multiclass of grids.•Effects investigated: grid thickness ratio, initial pattern, number of…”
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Spatial filtering improved tomographic PIV by Discetti, Stefano, Natale, Andrea, Astarita, Tommaso

“…Tomographic reconstruction accuracy is of fundamental importance to obtain reliable three-dimensional three-components velocity field measurements when…”
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On the behaviour of impinging sweeping jets: effects of the mixing chamber length, the feedback channel minimum cross-sectional area and the nozzle-to-plate distance by D’Angelo, Cristina, Paolillo, Gerardo, Greco, Carlo Salvatore, Cardone, Gennaro, Astarita, Tommaso

“…An experimental investigation on the effects of the mixing chamber length, the feedback channel minimum cross-sectional area and the nozzle-to-plate distance…”
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In Memoriam John A. Marino (1946-2014) by Astarita, Tommaso

“…Astarita presents an obituary for John A. Marino, who died on San Diego on Dec 3, 2014. Marino is a leading historian of early modern Italy. He received his BA…”
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Near field evolution of wingtip vortices under synthetic-jet based control by Zaccara, Mirko, Paolillo, Gerardo, Cafiero, Gioacchino, Astarita, Tommaso, Iuso, Gaetano, Cardone, Gennaro, Greco, Carlo Salvatore

“…The present research focuses on the experimental investigation of the effectiveness of synthetic jet actuation on a pair of counter-rotating vortices generated…”
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Flow field features of fractal impinging jets at short nozzle to plate distances by Cafiero, Gioacchino, Greco, Carlo Salvatore, Astarita, Tommaso, Discetti, Stefano

“…•Tomographic PIV study of impinging jets with fractal inserts is carried out.•The grid triggers azimuthal instabilities, producing streamwise vortices.•The…”
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Flow control of wingtip vortices through synthetic jets by Zaccara, Mirko, Paolillo, Gerardo, Greco, Carlo Salvatore, Astarita, Tommaso, Cardone, Gennaro

“…•Near wake analysis of wingtip vortices features under synthetic jet actuation.•Active flow control tuned to the inherent instability frequencies of the…”
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Experimental investigation on the three-dimensional organization of the flow structures in precessing jets by tomographic PIV by Ceglia, Giuseppe, Cafiero, Gioacchino, Astarita, Tommaso

“…•Visualization and characterization of the main large coherent structures generated by a fluidic precessing jet.•Vortex filaments with zero convective velocity…”
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Simultaneous visualization of the velocity and wall temperature fields in impinging swirling jets by Contino, Mattia, Paolillo, Gerardo, Greco, Carlo Salvatore, Astarita, Tommaso, Cardone, Gennaro

“…•Tomographic PIV is used to visualize the flow fields of impinging swirling jets.•IR Thermography is applied to measure simultaneously the wall jet…”
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3D reconstruction of the flow and vortical field in a rotating sharp “U” turn channel by Gallo, Mauro, Astarita, Tommaso

“…Particle image velocimetry experiments have been carried out to obtain visualizations and measurements of the main and secondary flow fields in a square…”
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Far field behaviour of wingtip vortices under synthetic jet-based control by Zaccara, Mirko, Bragança, Pierre, Cuvier, Christophe, Paolillo, Gerardo, Astarita, Tommaso, Cardone, Gennaro, Foucaut, Jean-Marc, Greco, Carlo Salvatore

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On the near field of single and twin circular synthetic air jets by Greco, Carlo Salvatore, Ianiro, Andrea, Astarita, Tommaso, Cardone, Gennaro

“…•Flow field of single and twin circular synthetic jets studied with phase locked PIV.•A potential core region is defined for phase averaged flow field of…”
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