Krishna M. Pillai – författare

Wicking of Liquids in Porous Media: Advances and Applications explores the intricate physics and innovative modeling techniques governing the movement of liquids through porous media, a phenomenon known as wicking.This comprehensive resource delivers the latest advancements in theoretical models, experimental methodologies, and practical applications of wicking across diverse fields. By synthesizing contemporary research findings with foundational theories, the book serves as a comprehensive resource for understanding the complexities of fluid flow and transport in porous structures. At its core, the book provides an in-depth exploration of the physics of wetting and the dynamics of capillary action within the context of porous media. Theoretical discussions elucidate key concepts such as capillary pressure, wetting front dynamics, and the influence of porous media characteristics on wicking behavior. Advanced modeling approaches, including the Lucas-Washburn equation, sharp-front and diffused-front models, and pore network models, are thoroughly examined.Designed to appeal to a diverse audience, this book targets professionals in industries reliant on porous materials, such as textiles, water management, energy storage, and biomedical devices, as well as academic researchers and graduate students in materials science, chemical, mechanical, environmental, and biomedical engineering.

This reference offers information on the science and advances of wicking in porous materials. It describes various modeling approaches, traditional and modern, but maintains an emphasis on the modern methodologies. A host of internationally recognized scientists and researchers contribute chapters that describe the physics of wicking and the different approaches available for modeling wicking. Chapters cover measurement of wetting parameters such as surface tension and contact angle; the Washburn Equation; measurement of various quantities; wicking in rigid porous materials; wicking in swelling porous materials; and two-phase flow approaches to modeling wick flow.

A comprehensive presentation of wicking models developed in academia and industry, Wicking in Porous Materials: Traditional and Modern Modeling Approaches contains some of the most important approaches and methods available, from the traditional Washburn-type models to the latest Lattice-Boltzmann approaches developed during the last few years. It provides a sound conceptual framework for learning the science behind different mathematical models while at the same time being aware of the practical issues of model validation as well as measurement of important properties and parameters associated with various models.Top experts in the field reveal the secrets of their wicking models. The chapters cover the following topics: Wetting and wettabilityDarcy’s law for single- and multi-phase flows Traditional capillary models, such as the Washburn-equation based approachesUnsaturated-flow based methodologies (Richard’s Equation)Sharp-front (plug-flow) type approaches using Darcy’s lawPore network models for wicking after including various micro-scale fluid-flow phenomenaStudying the effect of evaporation on wicking using pore network modelsFractal-based methods Modeling methods based on mixture theoryLattice-Boltzmann method for modeling wicking in small scales Modeling wicking in swelling and non-rigid porous media This extensive look at the modeling of porous media compares various methods and treats traditional topics as well as modern technologies. It emphasizes experimental validation of modeling approaches as well as experimental determination of model parameters. Matching models to particular media, the book provides guidance on what models to use and how to use them.