江苏大学学报（自然科学版）2025，Vol.46Issue(3)：301-308,8.DOI:10.3969/j.issn.1671-7775.2025.03.007
基于计算流体力学代理模型的天然气混氢装置结构优化
Structure optimization of hydrogen enriched natural gas unit based on computational fluid dynamics agent model
摘要
Abstract
The three-dimensional SK-type static mixer model based on the mixer without mixing elements was established to simulate the mixing behavior of gas mixtures.The operational and design parameters were investigated,and the influence patterns of mixing performance of uniformity index and pressure drop were analyzed.The results show that when the number of mixing elements is three,the optimal balance between performance and energy consumption is achieved.The length-to-diameter ratio of the mixing elements significantly affects the mixing efficiency,while the arrangement of mixing elements has less than 5％ impact on the pressure drop.For further optimization,the response surface with low interpolation error is constructed based on the Kriging surrogate model.Combined with the global optimization capability of the genetic algorithm,the optimal flow channel structure is obtained.Compared with the base model,the uniformity index at the outlet section is improved by 7.2％ after optimization,and the stratification phenomenon of hydrogen and methane is completely eliminated with improved uniformity of the flow field distribution.关键词
天然气混氢/数值模拟/SK型静态混合器/均匀性/参数优化Key words
hydrogen enriched natural gas/numerical simulation/SK static mixer/uniformity/parameter optimization分类
化学工程引用本文复制引用
渠秀媛,王洪建,夏雷,张晓瑞,孙立..基于计算流体力学代理模型的天然气混氢装置结构优化[J].江苏大学学报（自然科学版）,2025,46(3):301-308,8.基金项目
江苏省科技厅双碳产业前瞻项目(BE2022040) （BE2022040）
南京市科技局科技项目(202211007) （202211007）
