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Início Arquivos Representantes Futuras reuniões American Society of Thermal and Fluids Engineering

ISSN On-line: 2379-1748

ISBN Imprimir: 978-1-56700-517-2 (Flash drive)

5-6th Thermal and Fluids Engineering Conference (TFEC)
May, 26–28, 2021 , Virtual

TWO-DIMENSIONAL MAXIMUM ENTROPY PRINCIPLE TO PREDICT SPRAY CHARACTERISTICS DUE TO WAVE-BODY INTERACTIONS

Get access pages 1159-1169
DOI: 10.1615/TFEC2021.mph.036466

Resumo

A set of significant conservation constraints that govern the flow behavior, which is significantly important in the process of spray cloud formation resulting from the wave impact, were introduced. The size and velocity distribution arising from the maximization of the entropy is subject to these constraints. The probability distribution prediction considers the imposition of integral conservation of mass, momentum and kinematic energy on the process of water sheet breakup due to the wave impact. The prediction is based on a statistical tool called Maximum Entropy Principle (MEP) and the resulting size distribution is in agreement with the general empirical distributions. The prediction distribution is compared with the result of the experiment in a small-scale spray due to the wave impact, and it is more accurate than the prediction results from the one-dimensional MEP. The measurement of joint droplet size and velocity of droplets was made based on the Image processing and Digital Particle Image Velocimetry (DPIV) technique for a lab-scaled flat plate model. The spray was formed topside of this flat-shaped structure due to the interaction with breaking waves. The prediction model imposed to the full-scale conditions and is compared with the 1-D results of MEP by other researchers.
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