Modeling of a Single Bubble Dynamics at Boiling by Lattice Boltzmann Method

Abstract: Абстракт: To study the process of boiling on a solid heater surface, a hybrid model basedon lattice Boltzmann method and heat transfer equation is presented. The process of formationand rise of a single bubble during boiling over a single lyophobic zone located on a smoothlyophilic surface was studied. Dependences of the bubble departure frequency and bubbledeparture diameter on the width of the lyophobic zone and the wall superheat were obtained. It isshown that the bubble departure diameter increases with the width of the lyophobic zone, and thefrequency of bubble departure increases with the wall superheat. Based on the obtained data, theoptimal size of the lyophobic zone on the lyophilic surface was determined from the point of viewof heat transfer enhancement. © 2023, Pleiades Publishing, Ltd.