能源研究与管理2024，Vol.16Issue(2)：69-78,10.DOI:10.16056/j.2096-7705.2024.02.012
具有仿生结构的并联微细多通道蒸汽直接接触凝结数值模拟
Numerical Simulation of Steam Direct Contact Condensation in Parallel Micro-channel with Biomimetic Structure
摘要
Abstract
A parallel micro-fine multichannel model with biomimetic structure was designed based on the branched vascular tree system of mammalian arteries or veins.VOF multiphase flow model,large vortex simulation(LES)turbulence model and condensation double resistance model are used to simulate steam direct contact condensation in parallel and thin with multiple channels in Fluent.The feather shape,temperature and pressure distribution and condensation rate with time in parallel multiple channels are mainly obtained.The results show that the plume converges during horizontal condensation,and the overcooled water will periodically rush into the vertical branch pipe and the penetration height coincides,the pressure distribution is different in the vertical branch pipe,the condensation still occurs near the vapor interface,and the average condensation rate in each condensation cycle reaches the maximum of about 220 kg/(m3·s),before the plume is fully formed and accumulated,and the minimum is about 17 kg/(m3·s).关键词
微细通道/仿生结构/直接接触凝结/数值模拟Key words
micro-channels/biomimetic structure/direct contact condensation(DCC)/numerical simulation分类
能源科技引用本文复制引用
张超群,李树谦,周鹏程,樊凯伦,史金雨..具有仿生结构的并联微细多通道蒸汽直接接触凝结数值模拟[J].能源研究与管理,2024,16(2):69-78,10.基金项目
国家自然科学基金(51976052) （51976052）
河北省自然科学基金(E2020412176) （E2020412176）
