| 网格划分对喷雾造粒塔数值模拟精度的影响 |
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| 引用本文： | 冯留海,卜亿峰,祝岩青,毛羽,李希,门卓武.网格划分对喷雾造粒塔数值模拟精度的影响[J].石油学报(石油加工),2019,35(3):502-508. |
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| 作者姓名： | 冯留海 卜亿峰 祝岩青 毛羽 李希 门卓武 |
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| 作者单位： | 1. 北京低碳清洁能源研究所, 北京 102209；
2. 浙江大学 化学工程与生物工程学系，浙江 杭州 310027；
3. 中国石油管道局工程有限公司设计分公司，河北 廊坊 065000；
4. 中国石油大学（北京）重质油国家重点实验室，北京 102249 |
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| 基金项目： | 国家重点研发计划项目（2017YFB0602500）资助 |
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| 摘 要： | 为了研究网格模型简化形式和网格分块策略对模拟精度的影响，对喷雾造粒塔进行了多组网格划分并将数值模拟结果与实验结果进行了对比。结果表明：采用简化的网格模型得到的模拟结果无论是数值大小还是变化趋势与实验结果偏差较大；采用无简化喷嘴网格模型(喷嘴出口网格垂直映射)得到的模拟结果有所改善，而建模时考虑了射流方向和物理耗散的无简化喷嘴网格模型得到的模拟结果效果最佳。因此在网格模型简化后需要对模拟结果进行对比验证，而且不能忽视网格分块策略对模拟精度的影响。
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| 关 键 词： | 喷雾造粒塔 网格划分 模拟精度 数值耗散 |
| 收稿时间： | 2018-04-23 |
Effect of Grid Generation on Simulation Accuracy of Spray Granulation Tower |
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| FENG Liuhai,BU Yifeng,ZHU Yanqing,MAO Yu,LI Xi,MEN Zhuowu.Effect of Grid Generation on Simulation Accuracy of Spray Granulation Tower[J].Acta Petrolei Sinica (Petroleum Processing Section),2019,35(3):502-508. |
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| Authors: | FENG Liuhai BU Yifeng ZHU Yanqing MAO Yu LI Xi MEN Zhuowu |
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| Affiliation: | 1. National Institute of Clean-and-Low-Carbon Energy， Beijing 102209, China;
2. Department of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China;
3. China Petrleum Pipeline Engineering Co. Ltd.(Engineering), Langfang 065000, China;
4. State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China |
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| Abstract: | To study the effect of simplified geometric model and mesh generation strategy on the simulation accuracy, several groups meshing for the spray granulation is performed. Results comparison between numerical simulation and experiment is presented. It has been noticed that the simulation results obtained by simplified geometric model are much different with the experimental results. It is also found that accuracy of the simulation results obtained by using non-simplified nozzle mesh system, in which the outlet grid of the nozzles is vertically mapping, can be improved. However, the simulation results obtained by the non-simplified nozzle mesh system with the consideration of jet direction and physical dissipation are ideal. Therefore, it is necessary to verify the simulation results if a simplified model is used, and the effect of mesh generation on the accuracy of simulation results also should be considered. |
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| Keywords: | spray granulation tower grid generation simulation accuracy numerical dissipation |
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