计算流体力学是研究仿生机器鱼水动力特性的重要数值模拟方法,已在仿生学及海洋学等众多领域得到广泛应用。本文利用CNKI中文数据库及Web of Science核心合集数据库分别检索到201篇中文文献和146篇英文文献,运用Cite Space软件的文献计...计算流体力学是研究仿生机器鱼水动力特性的重要数值模拟方法,已在仿生学及海洋学等众多领域得到广泛应用。本文利用CNKI中文数据库及Web of Science核心合集数据库分别检索到201篇中文文献和146篇英文文献,运用Cite Space软件的文献计量学分析方法,对文献类型、期刊分布、发文量趋势、作者、研究机构和高被引文献进行了系统分析,并结合关键词网络知识图谱、关键词聚类图谱,探讨了计算流体力学在仿生机器鱼领域中的应用研究热点。结果表明:仿生机器鱼领域中外文献发文量呈现逐年上升趋势,且仿生类期刊及文献具有较高的影响因子与被引频次;研究学科领域涉及工程学、机器人学、力学与材料科学等多个交叉性学科;该领域内研究热点与重点方向为动力学模型、三维流场仿真、设计与制作。针对现有研究的不足,建议未来研究应深入探讨水生生物集群运动仿真、鱼类侧线感知机制和仿生机器鱼水动力试验,以期促进多学科融合,为仿生机器鱼的发展提供科学参考。展开更多
Liquid flow behavior, such as velocity distribution, in the packed column is of considerable importance in determining column performance. Using the volume-averaged method, a computational fluid dynamics(CFD) model wa...Liquid flow behavior, such as velocity distribution, in the packed column is of considerable importance in determining column performance. Using the volume-averaged method, a computational fluid dynamics(CFD) model was proposed to describe the liquid flow behavior in a structured packing column where the gas phase is stationary.A column packed with Mellapak 350Y had an inside diameter of 150 mm and a height of 1000 mm was simulated by solving the flow equations.A commercial CFD code, PHOENICS 3.3, was used to predict the fluid dynamics behavior of the liquid phase flow.The simulated profiles of pressure, velocity and concentration of the tracer were presented.The axial backmixing coefficients evaluated by the CFD results were presented and compared with the experimental data and the relative deviation was 3.8%—36.8%.展开更多
文摘计算流体力学是研究仿生机器鱼水动力特性的重要数值模拟方法,已在仿生学及海洋学等众多领域得到广泛应用。本文利用CNKI中文数据库及Web of Science核心合集数据库分别检索到201篇中文文献和146篇英文文献,运用Cite Space软件的文献计量学分析方法,对文献类型、期刊分布、发文量趋势、作者、研究机构和高被引文献进行了系统分析,并结合关键词网络知识图谱、关键词聚类图谱,探讨了计算流体力学在仿生机器鱼领域中的应用研究热点。结果表明:仿生机器鱼领域中外文献发文量呈现逐年上升趋势,且仿生类期刊及文献具有较高的影响因子与被引频次;研究学科领域涉及工程学、机器人学、力学与材料科学等多个交叉性学科;该领域内研究热点与重点方向为动力学模型、三维流场仿真、设计与制作。针对现有研究的不足,建议未来研究应深入探讨水生生物集群运动仿真、鱼类侧线感知机制和仿生机器鱼水动力试验,以期促进多学科融合,为仿生机器鱼的发展提供科学参考。
基金国家自然科学基金项目 (No 2 0 2 0 60 2 1)天津市自然科学基金项目 (No 0 2 3 60 6711)~~
文摘Liquid flow behavior, such as velocity distribution, in the packed column is of considerable importance in determining column performance. Using the volume-averaged method, a computational fluid dynamics(CFD) model was proposed to describe the liquid flow behavior in a structured packing column where the gas phase is stationary.A column packed with Mellapak 350Y had an inside diameter of 150 mm and a height of 1000 mm was simulated by solving the flow equations.A commercial CFD code, PHOENICS 3.3, was used to predict the fluid dynamics behavior of the liquid phase flow.The simulated profiles of pressure, velocity and concentration of the tracer were presented.The axial backmixing coefficients evaluated by the CFD results were presented and compared with the experimental data and the relative deviation was 3.8%—36.8%.
