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排灌机械工程学报  0, Vol. Issue (): 18-    DOI:
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基于温度体模型的动网格生成方法旋转变形能力的研究
陈  炎1,张勤昭2,曹树良3
(1. 上海天示机械零部件制造有限公司,上海 201611;2. 清华大学核能与新能源技术研究院,北京 100084;3. 清华大学水沙科学与水利水电工程国家重点实验室,北京 100084)
Research on Rotation Deformability of Temperature Analogy Method
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摘要 温度体动网格方法是一种基于温度体模型生成动网格的新方法,对它的旋转变形能力进行了比较深入的研究。动网格方法的旋转变形能力取决于动网格模型对旋转变形的传递方式。以不同尺寸的旋转圆柱为例,将温度体模型和目前广泛应用的弹簧法、弹簧体模型对旋转变形的传递方式进行比较。分析得到,弹簧法和弹簧体模型将绕轴向的旋转运动分解为沿轴向的平移运动,传递虚假的旋转信息,造成网格变形集中在运动边界周围,运动边界处网格发生严重畸变甚至交错;而温度体模型通过引入旋转映射,使运动边界的旋转信息能够正确有效地传递到整个计算域。进一步应用温度体模型和弹簧法分别生成翼型旋转运动的动网格。结果表明:即使对翼型的大角度旋转运动,温度体动网格方法生成的网格品质好;而弹簧法生成的网格在翼型边界处容易产生畸变。以上研究表明了温度体动网格方法优异的旋转变形能力。
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关键词温度体模型   弹簧法   弹性体模型   动网格   流固耦合     
Abstract: Temperature Analogy Method (TAM) is a new dynamic grids method using temperature analogy. Its rotation deformability was researched in this paper. For dynamic grids methods, their rotation deformability depends on their transfer modes of rotary deformation. First, taking rotating cylinders with different sizes as examples, the transfer modes of rotation deformability for TAM, spring analogy and elasticity approach were compared. Spring analogy and elasticity approach are two most popular dynamic grids methods nowadays. The analysis shows that spring analogy and elasticity approach decompose rotation around an axis into the translation along the axis. So they transfer false rotation deformation, which makes grids deformation aggregate around moving boundaries and grids around moving boundaries are distorted seriously and even staggered. However, TAM introduces rotation map to transfer the rotation of moving boundaries correctly and effectively within the whole computational domains, which avoids the false rotation deformation transfer. Second, TAM and spring analogy were used to generate dynamic grids of airfoil rotation separately. The results show that the dynamic grids generated by TAM are of good quality even for the airfoil with large scale rotation. But the dynamic grids generated by spring analogy are easy to be distorted near the moving boundaries of the airfoil. Above work indicates TAM is of greater advantages in rotation deformability.
Key wordstemperature analogy   spring analogy   elasticity approach   dynamic grids   fluid-solid coupling   
引用本文:   
. 基于温度体模型的动网格生成方法旋转变形能力的研究[J]. 排灌机械工程学报, 0, (): 18-.
. Research on Rotation Deformability of Temperature Analogy Method[J]. Journal of Drainage and Irrigation Machinery Engin, 0, (): 18-.
 
[1] Batina J. Unsteady Euler airfoil solutions using unstructured dynamic meshes[J]. AIAAJournal. 1990, 28(8): 1381-1388.
[2] Tezduyar T E, Behr M, Liou J. A new strategy for finite element computations involvingmoving boundaries and interfaces-- The deforming-spatial-domain/ space-time procedure: I.The concept and the preliminary numerical tests[J]. Computer Methods in Applied Mechanicsand Engineering. 1992, 94(3): 339-351.
[3] Farhat C, Degand C, Koobus B, et al. Torsional springs for two-dimensional dynamicunstructured fluid meshes[J]. Computer Methods in Applied Mechanics and Engineering.1998, 163(1-4): 231-245.
[4] Degand C, Farhat C. A three-dimensional torsional spring analogy method forunstructured dynamic meshes[J]. Computers & Structures. 2002, 80(3-4): 305-316.
[5] Bottasso C L, Detomi D, Serra R. The ball-vertex method: a new simple spring analogymethod for unstructured dynamic meshes[J]. Computer Methods in Applied Mechanics and Engineering. 2005, 194(39-41): 4244-4264.
[6] Acikgoz N, Bottasso C L. A unified approach to the deformation of simplicial and non-simplicial meshes in two and three dimensions with guaranteed validity[J]. Computers &structures. 2007, 85(11-14): 944-954.
[7] Stein K, Tezduyar T E, Benney R. Mesh moving techniques for fluid-structure interactionswith large displacements[J]. Journal of Applied Mechanics. 2003, 70(1): 58-63.
[8] Stein K, Tezduyar T E, Benney R. Automatic mesh update with the solid-extension meshmoving technique[J]. Computer Methods in Applied Mechanics and Engineering. 2004, 193(21-22): 2019-2032.
[9] 陈炎, 曹树良, 祝宝山, 等. 基于温度体动网格方法的微弯薄翼振动问题[J]. 机械工程学报, 2010, 46(10): 170-175.
Chen Yan, Cao Shuliang, Zhu Baoshan, et al. Vibration of thin cambered blade based ontemperature analogy[J]. Journal of Mechanical Engineering, 2010, 46(10): 170-175. (in Chinese)
[10] 陈炎, 曹树良, 梁开洪, 等. 温度体动网格方法及在流固耦合振动中的应用[J]. 振动与冲击, 2010, 29(4): 1-5.
Chen Yan, Cao Shuliang, Liang Kaihong, et al. A new dynamic grids based on temperature analogy and its application in vibration engineering with fluid-solid interaction[J]. Journal of Vibration and Shock, 2010, 29(4): 1-5. (in Chinese)
[11] 陈炎, 曹树良, 梁开洪, 等. 温度体动网格模型中控制参数的研究[J]. 计算物理, 2010,27(3): 396-406.
Chen Yan, Cao Shuliang, Liang Kaihong, et al. Parameter control in temperature analogy method[J]. Chinese Journal of Computational Physics, 2010, 27(3): 396-406. (in Chinese)
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