摘要
壁面流动一直以来是流体力学、计算流体力学和海洋工程类学科研究的热点话题,对于各类海洋结构物而言,还要考虑由于气体和液体之间的相互作用而形成的复杂气液两相流流动。该文针对气液混合流的壁面流动特性开展数值模拟研究,基于Euler-Euler双流体模型求解水气混杂的壁面流动情况。从壁面完全发展的湍流位置注入气体形成两相流,分析不同气含量下的壁面湍流发展情况以及气相的加入对原始湍流流动和发展的影响。结果发现,两相流对于壁面湍流有一定的抑制效果,该效果与喷气位置和气含量相关。
Wall flow has always been a hot topic in fluid mechanics,computational fluid dynamics and marine engineering.For various marine structures,it is also necessary to consider the complex gas-liquid two-phase flow formed by the interaction between gas and liquid.In this paper,the numerical simulation of the wall flow characteristics of gas-liquid mixed flow is carried out.Based on the Euler-Euler two-fluid model,the wall flow of water-gas mixture is solved.The gas is injected from the fully developed turbulent position on the wall to form a two-phase flow.The development of wall turbulence under different gas content and the influence of the addition of gas phase on the original turbulent flow and development are analyzed.The results show that the two-phase flow has a certain inhibitory effect on wall turbulence,which is related to the jet position and air flow rate.
作者
高启迪
王文涛
王建华
万德成
Gao Qidi;Wang Wentao;Wang Jianhua;Wan Decheng(Computational Marine Hydrodynamics Lab(CMHL),School of Naval Architecture,Ocean and Civil Engineering,Shanghai Jiao Tong University,Shanghai 200240,China;China Ship Scientific Research Center,Wuxi 214082,China)
出处
《水动力学研究与进展(A辑)》
北大核心
2025年第3期453-459,共7页
Chinese Journal of Hydrodynamics
基金
国家自然科学基金重点项目(52131102)。
