Abstract
Infrared (IR) thermography, due to its two-dimensionality and non-contact character, can be usefully employed in a vast variety of heat transfer industrial applications as well as research fields. The present work deals with measurements of temperature and/or convective heat transfer coefficients in several types of fluid flow configurations studied by means of the IR scanning radiometer applied to the heated-thin-foil technique. In more details, it is analysed the capability of the infrared system to study particular phenomena such as: the heat transfer, including the spiral vortical structures developing at transition, over a disk rotating in still air; the thermal exchange enhancement induced by a jet centrally impinging on the rotating disk; the complex heat transfer pattern associated with a jet in cross-flow.
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Giovanni Maria Carlomagno: He became Doctor in Mechanical Engineering (summa cum laude) in 1965, Research assistant at University of Princeton (1967-68), Associate professor of Physics (1969), Associate Professor of Gasdynamics (1975), Professor of Aerospace and Mechanical Enginnering (1986). He has chaired 14 International Meetings, is editor of 14 books and author of some 200 scientific papers on Aerodynamics, Gasdynamics, Heat transfer, Fluidics, Non-newtonian fluid dynamics, Measurement techniques in thermo-fluid-dynamics, Tethered satellites, Infrared thermography, Image Processing. He is Member of the Advisory Board of the Pacific Center of Thermal-Fluids Engineering, the Scientific Council of the International Centre for Heat and Mass Transfer and of the Executive Committee of the International Council for Aeronautical Sciences, Member of the Editorial Board of more than 10 International Scientific Journals, Chairman of the Technical Advisory Committee of the von Karman Institute and Dean of the school of Aerospace Engineering of the University of Naples.
Tommaso Astarita: He received his master degree in Aeronautical Engineering (summa cum laude) in 1993 and PhD in Aerospace Engineering in 1997 at University of Naples. He is an expert in Infrared Thermography applied to convective heat transfer problems and is an author of some 20 scientific papers in this field. His more recent research interest includes the application of PIV techniques to fluid dynamics.
Gennaro Cardone: He graduated with summa cum laude in Mechanical Engineering (1988), and received PhD in Aerospace Engineering at University of Naples (1991). He was an Assistant Professor at the University of Naples from 1992 to 1998, and has been an Associate Professor of Fluid Mechanics at the University of Naples since 1998. His major research fields are: Two-beam and reference beam interferometry; Application of the Infrared Thermography to quantitative measurements of heat transfer coefficients and flow fields visualization; Aerodynamic heating and visualization of flow fields in hypersonic flow; Viscous interaction and Goertler vortices in hypersonic flow; Boundary layer diagnostic and visualization of subsonic flow fields; Internal flow in the laminar, transitional and turbulent regimes. He is an author of more than 50 scientific publications.
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Carlomagno, G.M., Astarita, T. & Cardone, G. Thermographic investigation of some surface flow patterns. J Vis 2, 381–393 (2000). https://doi.org/10.1007/BF03181453
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DOI: https://doi.org/10.1007/BF03181453