哈尔滨工程大学学报2025，Vol.46Issue(12)：2423-2432,10.DOI:10.11990/jheu.202408028
近弹性覆盖层的气泡脉动特性
Pulsation characteristics of bubbles near elastic coatings
摘要
Abstract
Cavitation bubble erosion can cause structural damage.Toward addressing this issue,the influence of an elas-tic coating on the cavitation behavior of bubbles was examined in this study.The critical conditions determining whether pulsating bubbles move away from or toward the elastic coating were identified,with the aim of reducing cavitation ero-sion effects.Based on the structured arbitrary Lagrangian-Eulerian algorithm and the immersed boundary method,a cou-pled model of bubbles and elastic coatings was established.This model was used to investigate the effects of the elastic and density parameters of the coating.The results revealed that within a certain range,the coating considerably promotes bubble ascent.In this range,parameters such as stress,strain,and energy on the covering layer are linearly related to the elastic parameters.Moreover,within a specific range,a higher density of the coating results in a more pronounced tendency of bubbles to move upward from the covering layer.The stress,strain,and parameters such as energy on the covering layer are also linearly related to the density parameters within this range.The research results clarify the param-eter control rules for bubbles moving away from or approaching the elastic covering layer,and provide a theoretical basis for the cavitation erosion suppression and protection design of the elastic covering layer.关键词
空化气泡/弹性覆盖层/流固耦合/S-ALE算法/空蚀现象/弹性模量/气泡迁移/数值模拟Key words
cavitation bubble/elastic coating/fluid-solid coupling/S-ALE algorithm/cavitation erosion/elastic modulus/bubble migration/numerical simulation分类
数理科学引用本文复制引用
孙丹,王宇,秦昊,苏浩晨,刘云龙..近弹性覆盖层的气泡脉动特性[J].哈尔滨工程大学学报,2025,46(12):2423-2432,10.基金项目
国防基础科学研究计划(JCKY2021604B027). （JCKY2021604B027）
