机电工程技术2026，Vol.55Issue(1)：19-22,54,5.DOI:10.3969/j.issn.1009-9492.2025.00045
基于不同喉径喷嘴内部自发凝结的数值分析
Numerical Analysis of Spontaneous Condensation Inside Nozzles with Different Throat Diameters
摘要
Abstract
Spontaneous condensation of wet steam always occurs inside the nozzle of the steam injector,this is due to the two-phase non-equilibrium flow of wet steam with shifting phase and heat transfer processes in the nozzle and the mixing chamber,where the flow mechanism is much more complicated than single-phase flow.Spontaneous condensation seriously affects the working efficiency of the steam injector and even reduces its working life.By changing the geometric parameters of the nozzle,an intrinsic relationship between wet steam condensation behavior and nozzle throat diameter is constructed.Numerical simulation is conducted based on the nozzle model established by laboratory data to verify the correctness of the model.The results show that the average relative error with the laboratory data is 1.77%,and the maximum relative error is 4.18%.Increasing the throat diameter can inhibit the spontaneous condensation behavior of wet steam to a certain extent.关键词
蒸汽凝结/喷嘴/数值模拟Key words
steam condensation/nozzle/numerical simulation分类
数理科学引用本文复制引用
唐榛,李赫,柯世博,纪欣,杨子斌..基于不同喉径喷嘴内部自发凝结的数值分析[J].机电工程技术,2026,55(1):19-22,54,5.基金项目
2022年度辽宁省教育厅基本科研项目(JYTMS20231249) （JYTMS20231249）
