Andrea Ianiro

TL;DR: In this article, some of the experimental contributions evolved while studying the heat transfer behavior of these jets (with a specific focusing on the secondary annular peak) are reviewed, along with the development of specific experimental techniques in thermal-fluid sciences over the last 50 years.

TL;DR: In this article, an experimental investigation at Reynolds number equal to 5000 on circular and chevron impinging jets by means of time-resolved tomographic particle image velocimetry (TR-TOMO PIV) and infrared (IR) thermography is performed at kilohertz repetition rate in a tailored water jet facility where a plate is placed at a distance of 4 diameters from the nozzle exit.

TL;DR: The results show that, unlike existing techniques, the proposed method is robust in the presence of significant background noise intensity, gradients, and temporal oscillations and the computational cost is one to two orders of magnitude lower than conventional image normalization methods.

TL;DR: In this article, the influence of the swirl number on the wall heat transfer distribution on a flat plate with a swirling air jet impinging on it is experimentally analyzed, and the dependence of heat transfer rate and uniformity on swirl number is also explained.

TL;DR: Two models based on convolutional neural networks are trained to predict the two-dimensional instantaneous velocity-fluctuation fields at different wall-normal locations in a turbulent open-channel flow, using the wall-shear-stress components and the wall pressure as inputs, showing better predictions than the extended proper orthogonal decomposition (EPOD), which establishes a linear relation between the input and output fields.