Numerical Calculation and Test Analysis of High Speed Taxiing Performance of Amphibious Aircraft on Calm Water
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摘要: 针对水陆两栖飞机静水面高速滑行过程的运动响应大、流场强非线性等问题，提出了一种基于传统动网格技术的"状态预估——精确计算"的数值模拟方法：通过求解Reynolds平均N-S方程结合运动方程来模拟飞机静水面滑行时的流场特征和运动特性，数值模拟方法为隐式有限体积法，湍流模型采用k-ω（SST Menter）结合壁函数进行处理，自由液面捕捉采用VOF方法；数值计算时，首先采用粗网格对简化后的飞机在不同航速下的姿态和升沉进行快速预估，再将飞机置于预估状态下进行精确网格划分，最后进行精确数值计算分析.为了验证数值模拟结果的正确性，在物理水池中进行了静水拖曳试验，将数值计算结果与试验结果进行对比分析可得：数值计算与水池试验的流场特征吻合，且阻力、姿态和升沉的计算精度达到90%，验证了数值模拟方法的可行性.Abstract: Aiming at the problems of large motion response of amphibious aircraft and strong non-linearity of flow field during high speed taxiing on calm water, a numerical method based on traditional dynamic mesh method was proposed. It is used to simulate the flow field characteristics and motion characteristics of the aircraft taxiing on calm water by solving Reynolds Average N-S equations and motion equations. This method is an implicit finite volume method. The turbulence is treated by k-ω(SST Menter) model with wall function and the free surface is captured by VOF method. The attitude and heave of the aircraft at different speeds were predicted quickly by using coarse grids. Then the aircraft was placed in the predicted state for fine grid generation, and finally the precise numerical analysis was carried out. In order to verify the correctness of the numerical results, a test was carried out in tank, and the numerical results were further compared with the test results. It shows that the simulation is consistent with the flow field characteristics of the test, and the calculation accuracy of resistance, attitude and heave reaches 90%. The feasibility of the numerical method was verified.
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图 21 数值计算与水池试验结果对比(姿态)
Figure 21. Comparisons of numerical results with tank test results(attitude)
图 22 数值计算与水池试验结果对比(升沉)
Figure 22. Comparisons of numerical results with tank test results(heave)
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[1] 褚林塘.水上飞机水动力设计[M].北京:航空工业出版社, 2014:1-8.Chu L T. Collected works of seaplane[M]. Beijing:Aviation Industry Press, 2014:1-8(in Chinese). [2] 胡问鸣.通用飞机[M].北京:航空工业出版社, 2018:216.Hu W M. General aviation aircraft[M]. Beijing:Aviation Industry Press, 2018:216(in Chinese). [3] 唐彬彬, 张家旭, 李成华, 等.水陆两栖飞机模型喷溅峰点分析方法研究[J].航空计算技术, 2015, 45(6):45. doi: 10.3969/j.issn.1671-654X.2015.06.011Tang B B, Zhang J X, Li C H, et al. Study on analytical method for spray peaks of amphibious aircraft[J]. Aeronautical Computing Technique, 2015, 45(6):45(in Chinese). doi: 10.3969/j.issn.1671-654X.2015.06.011 [4] 张师帅.计算流体动力学及其应用[M].武汉:华中科技大学出版社, 2011.Zhang S S. Computational fluid dynamics and applica-tion[M]. Wuhan:Huazhong University of Science & Technology Press Co. Ltd, 2011(in Chinese). [5] 王丽丽, 李新颖, 黄淼, 等.基于重叠网格的水陆两栖飞机浮筒水动性能研究[C].第十四届全国水动力学学术会议暨第二十八届全国水动力学研讨会文集, 北京: 海洋出版社, 2017: 1248.Wang L L, Li X Y, Huang M, et al. Hydrodynamics research of amphibious aircraft float based on overset mesh[C]. Proceedings of the 14th National Congress on Hydrodynamics & the 28th National Conference on Hydrodynamic, Beijing: China Ocean Press, 2017: 1248(in Chinese). [6] 李新颖, 贾力平, 吴彬.水陆两栖飞机单船身静水面滑行数值模拟[J].军民两用技术与产品, 2015(10):10. doi: 10.3969/j.issn.1009-8119.2015.10.009Li X Y, Jia L P, Wu B. Numerical simulation of amphibious aircraft hull taxiing on calm water[J]. Dual Use Technologies & Products, 2015(10):10(in Chinese). doi: 10.3969/j.issn.1009-8119.2015.10.009 [7] 余建伟.基于CFD的船舶阻力计算与预报研究[D].上海: 上海交通大学, 2009. http://cdmd.cnki.com.cn/Article/CDMD-10248-2009225651.htmYu J W. Research on calculation and prediction for ship resistance based on CFD theory[D]. Shanghai: Shanghai Jiao Tong University, 2009(in Chinese). http://cdmd.cnki.com.cn/Article/CDMD-10248-2009225651.htm [8] 班长英.体积分数保持法——基于VOF方法中边界线重构的改进算法[D].南京: 河海大学, 2006. http://www.wanfangdata.com.cn/details/detail.do?_type=degree&id=Y912007Ban C Y. Volume fraction conservation method——A modified borderline reconstruction method in VOF[D]. Shanghai: Shanghai Jiao Tong University, 2009(in Chinese). http://www.wanfangdata.com.cn/details/detail.do?_type=degree&id=Y912007 [9] 刘尚民, 刘朝君, 祁圣君.海鸥300模型起飞滑行性能估算技术研究[J].航空科学技术, 2015, 26(10):6. doi: 10.3969/j.issn.1007-5453.2015.10.002Liu S M, Liu Z J, Qi S J. Estimated research on the performance of HO300 scaled model's take off and taxiing[J]. Aeronautical Science & Technology, 2015, 26(10):6(in Chinese). doi: 10.3969/j.issn.1007-5453.2015.10.002 [10] 黄技.高速船舶阻流板降阻机理分析[D].大连: 大连海事大学, 2013. http://cdmd.cnki.com.cn/Article/CDMD-10151-1013204603.htmHuang J. Analysis of interceptor for drag reduction theory on high speed vessel[D]. Da Lian: Dalian Maritime University, 2013(in Chinese). http://cdmd.cnki.com.cn/Article/CDMD-10151-1013204603.htm [11] 张成基.船舶尾流模拟及感应磁场分布特性[D].西安: 西安工业大学, 2018.Zhang C J. Simulation and induced magnetic field distribution characteristics of ship wakes[D]. Xi'an: Xi'an Technological University, 2018(in Chinese). [12] 中国船舶工业总公司. CB/Z 244-88-1988, 滑行艇船模阻力测试方法[S]. 1988.China State Shipbuilding Corporation Limited. CB/Z 244-88-1988, Method of model resistance measurement for planning craft[S]. 1988(in Chinese). -
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