[1]谢 晴,谢军龙*,郭晓亮,等.基于气体动理学格式的平板绕流数值模拟[J].武汉工程大学学报,2018,40(06):673-677.[doi:10. 3969/j. issn. 16742869. 2018. 06. 018]
XIE Qing,XIE Junlong*,GUO Xiaoliang,et al.Numerical Simulation of Flat-Plate Flow Based on Gas Kinetic Scheme[J].Journal of Wuhan Institute of Technology,2018,40(06):673-677.[doi:10. 3969/j. issn. 16742869. 2018. 06. 018]
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基于气体动理学格式的平板绕流数值模拟(/HTML)
《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]
- 卷:
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40
- 期数:
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2018年06期
- 页码:
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673-677
- 栏目:
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机电与信息工程
- 出版日期:
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2018-12-28
文章信息/Info
- Title:
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Numerical Simulation of Flat-Plate Flow Based on Gas Kinetic Scheme
- 文章编号:
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20180618
- 作者:
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谢 晴; 谢军龙*; 郭晓亮; 庄晓东
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华中科技大学能源与动力工程学院,湖北 武汉 430074
- Author(s):
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XIE Qing; XIE Junlong*; GUO Xiaoliang; ZHUANG Xiaodong
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School of Energy and Power Engineering,Huazhong University of Science and Technology,Wuhan 430074,China
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- 关键词:
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气体动理学格式; 平板绕流; 数值模拟
- Keywords:
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Gas Kinetic Scheme; flat-plate flow; numerical simulation
- 分类号:
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O357.5
- DOI:
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10. 3969/j. issn. 16742869. 2018. 06. 018
- 文献标志码:
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A
- 摘要:
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介绍了基于Bhatnagar-Gross-Krook(BGK)模型的气体动理学格式Gas Kinetic Scheme(GKS)数值算法。给出了平板绕流的物理模型以及边界的处理方式,同时进行了算法准确性验证。对不同雷诺数条件下的单平板绕流进行数值模拟,随雷诺数的增大,涡不断被拉长,逐渐失去对称性,形成卡门涡街;对Re=300的前后平板绕流,当板间距较小时流场处于对称尾流区,没有涡的脱落,当板间距较大时会形成卡门涡街;对Re=300的上下平板绕流,当板间距较小时流场特征与单平板绕流相似,当板间距较大时会形成两列涡,在下游较远处开始逐渐合并。
- Abstract:
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This paper describes the Unified Gas-Kinetic Scheme based on the BGK-Shakhov model. The physical model of the flat flow and the processing method of the boundary were introduced, and the accuracy of the algorithm was verified. The numerical simulation of the flow around a single plate under different Reynolds numbers was carried out. As the Reynolds number increased, the vortex continued to be elongated, gradually losing symmetry, forming a Karman Vortex Street. For the flow around the front and back plates of Re=300, when the plate spacing was small, the flow field was in the symmetrical wake region, and there was no vortex shedding. When the plate spacing was large, Carmen Vortex Street would be formed. For the flow of the upper and lower plates of Re=300, the flow field characteristics were similar with those of a single plate when the plate spacing was small. When the plate spacing was large, two rows of vortices were formed, and gradually merged further downstream.
参考文献/References:
[1] XU K,HUANG J C.A unified gas-kinetic scheme for continuum and rarefied flows[M]. San Diego:Academic Press Professional,2010. [2] HUAMG J C,XU K,YU P.A unified gas-kinetic scheme for continuum and rarefied flows II:multi-dimensional cases[J]. Communications in Computational Physics,2012,12(3):662-690. [3] XUAN L J,XU K.An efficient high-order finite difference gas-kinetic scheme for the Euler and Navier-Stokes equations[J]. Computers and Fluids,2018,166:243-252. [4] JIN? C? Q,XU?K. An adaptive grid method for two- dimensional viscous flows[J]. ?Journal of Computational Physics,2006,218(1):68-81.?[5] JI X,ZHAO F X,WEI S,et al.A family of high-order gas-kinetic schemes and its comparison with Riemann solver based high-order methods[J]. Journal of Computational Physics,2018,356:150-173. [6] LI Q B,XU K,FU S.A high-order gas-kinetic Navier-Stokes flow solver[J]. Journal of Computational Physics,2010,229(19):6715-6731. [7] 李启兵,符松. 高精度气体动理学格式与湍流模拟[J]. 中国科学:物理学力学天文学,2014,44(3):278-284. [8] ZHU L H,GUO Z L,XU K.Discrete unified gas kinetic scheme on unstructured meshes[J]. Computers and Fluids, 2016,127:211-225. [9] CHEN S,XU K,LEE C,et al.A unified gas kinetic scheme with moving mesh and velocity space adaptation[J]. Journal of Computational Physics,2012,231(20):6643-6664. [10] 张浩龙,陶实,郭照立. 离散统一气体动理学格式的浸入边界方法[J]. 工程热物理学报,2016,37(3):539-544. [11] 王圣洁,张伟,刘欢. 等边布置四方柱绕流涡脱落规律的数值研究[J]. 天津城建大学学报,2018(2):116-121. [12] 牛朝. 基于浸入边界法和编程的圆柱绕流的数值模拟[J]. 价值工程,2018(7):155-157. [13] 郑宇华,顾杰. 两并列矩形柱绕流的PIV试验研究[J]. 应用力学学报,2018(3):465-471. [14] 孙福振. 用格子Boltzmann方法研究平板绕流[D]. 长春:吉林大学,2007. [15] 谭爽,李诗一,李启兵,等. 气体动理学格式与多尺度流动模拟[J]. 计算力学学报,2017,34(1):88-94.
备注/Memo
- 备注/Memo:
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收稿日期:2018-09-03基金项目:国家自然科学基金(51376077)作者简介:谢 晴,女,硕士研究生。 E-mail:[email protected]*通讯作者:谢军龙,男,博士,教授。 E-mail:[email protected]引文格式:谢晴,谢军龙,郭晓亮,等. 基于气体动理学的平板绕流数值模拟[J]. 武汉工程大学学报,2018,40(6):673-677.
更新日期/Last Update:
2018-12-22