| 迷宫滴头CFD模拟精度影响因素的正交试验分析 |
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| 引用本文： | 颜廷熠,周芸,仵峰. 迷宫滴头CFD模拟精度影响因素的正交试验分析[J]. 节水灌溉, 2009, 0(6) |
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| 作者姓名： | 颜廷熠 周芸 仵峰 |
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| 作者单位： | 1. 四川省水利科学研究院,四川,成都,610072
2. 中国农业科学院农田灌溉研究所,河南,新乡,453003 |
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| 基金项目： | 国家科技支撑计划课题(2007BAD88B08);;四川公益性科技攻关专项(2008NGY0001) |
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| 摘 要： | 近几年出现的计算流体动力学(CFD)数值模拟方法已经成为滴头研究中的重要手段.在利用FLUENT求解器对迷宫滴头流道内流场进行CFD数值模拟时发现:当对求解器进行不同设置时,CFD模拟精度存在较大差别,因此有必要对影响滴头CFD模拟精度的主要因素进行分析,找出合理设置求解器的方法,以便CFD数值模拟可以取得理想的模拟精度.利用FLUENT软件对迷宫滴头流道内流场进行了数值模拟,并与实测结果进行对比,对影响滴头CFD数值模拟精度的主要因素进行了正交试验分析,研究了网格单元尺寸、CFD计算模型和近壁面处理方式对CFD模拟精度的影响特性.找出了能使CFD数值模拟取得理想精度的求解器设置方法.
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| 关 键 词： | 迷宫滴头 CFD模拟精度 网格单元尺寸 CFD计算模型 近壁面处理方式 |
Orthogonal Experimental Analysis of Influencing Factors of CFD Simulation Precision of Labyrinth Emitter |
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| YAN Ting-Yi , ZHOU Yun , Wu Feng. Orthogonal Experimental Analysis of Influencing Factors of CFD Simulation Precision of Labyrinth Emitter[J]. Water Saving Irrigation, 2009, 0(6) |
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| Authors: | YAN Ting-Yi ZHOU Yun Wu Feng |
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| Affiliation: | 1.Sichuan Institute of Water Conservancy Science;ChengDu 610072;China;2.Farmland Irrigation Research Institute;Chinese Academy of Agricultural Science;Xinxiang 453003;China |
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| Abstract: | Computation Fluid Dynamics(CFD) numerical simulation method appears in recent years has become the important means to study the irrigation emitter.When the flow field of labyrinth emitter is simulated by the FLUENT solver,it is found that there exist considerable differences in the Computation Fluid Dynamics(CFD) numerical simulation precision under the condition of different setting of the FLUENT solver.So it's necessary to study the main influencing factors for the CFD numerical simulation precision.In th... |
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| Keywords: | labyrinth emitter CFD simulation precision mesh cell size computation model near-wall boundary treatment mode |
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