Study on supersonic turbulence plate ablation flow field in arc heater
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摘要: 电弧加热器超声速湍流平板烧蚀试验技术是研究防热材料烧蚀特性的重要手段。为研究超声速湍流平板烧蚀过程中流场变化情况，采用数值求解二维N-S方程的方法进行试验流场模拟。从模拟结果看，未烧蚀模型外形流场模拟得到的模型表面参数结果与试验结果吻合很好。然后对烧蚀过程中的模型外形进行了流场模拟，并与试验流场进行对比，根据模拟结果分析了试验过程中模型表面压力和热流密度分布的变化。根据分析可知，如果平板模型烧蚀量最大的位置在初始高热流区内，可以采用该烧蚀量计算烧蚀速率。Abstract: The supersonic turbulent plate ablation test technology is an important method in arc-heater to study the ablation characteristic of thermal protection materials. In order to study the change of the flow field during the supersonic turbulence plate ablation, a numerical simulation method based on N-S equation is adopted. The simulation results of the initial model surface parameters are in good agreement with the experimental results. Then, the flow field simulation about the model contour is carried out in the experimental process, which is compared with the experimental flow field. The changes of surface pressure and heat flux on the model are analyzed. According to the analysis, if the maximum ablation position is in the high heat flux region of the initial model, the ablation rate can be calculated by using the maximum ablation amount.
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Key words:
- turbulence plate /
- ablation /
- flow field /
- numerical simulation
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[1] 董维中, 高铁锁, 张巧芸.高超声速三维碳-碳烧蚀流场的数值研究[J].空气动力学学报, 2001, 19(4):388-394. doi: 10.3969/j.issn.0258-1825.2001.04.004Dong W Z, Gao T S, Zhang Q Y. Numerical simulation of 3-D graphite ablation flowfields over a hypersonic reentry blunt body[J]. Acta Aerodynamica Sinica, 2001, 19(4):388-394. doi: 10.3969/j.issn.0258-1825.2001.04.004 [2] 张威, 曾明, 肖凌飞, 等.碳-酚醛材料烧蚀热解对再入流场特性影响的数值计算[J].国防科技大学学报, 2014, 36(4):41-48. http://d.old.wanfangdata.com.cn/Periodical/gfkjdxxb201404008Zhang W, Zeng M, Xiao L F, et al. Numerical study for the effects of ablation and pyrolysis on the hypersonic reentry flow[J]. Journal of National University of Defense Technology, 2014, 36(4):41-48. http://d.old.wanfangdata.com.cn/Periodical/gfkjdxxb201404008 [3] 邵纯, 王璐, 陈伟芳.碳基材料烧蚀下的热化学非平衡流场数值模拟研究[J].工程力学, 2016, 33(2):249-256. http://cdmd.cnki.com.cn/Article/CDMD-10335-1014168076.htmShao C, Wang L, Chen W F. Numerical simulation for thermochemical nonequilibrium flow under carbon based material ablation conditions[J]. Engineering Mechanics, 2016, 33(2):249-256. http://cdmd.cnki.com.cn/Article/CDMD-10335-1014168076.htm [4] Chen Y, Milos F, Dan R, et al. Graphite ablation and thermal response simulation under arc-jet flow conditions[R]. AIAA-2003-4042, 2003. [5] Chen Y, Milos F, Gökçen T. Loosely coupled simulation for two-dimensional ablation and shape change[R]. AIAA-2008-3802, 2008. [6] Gökcen T, Chen Y K, Skokova K A, et al. Computational analysis of arc-jet stagnation tests including ablation and shape change[R]. AIAA-2009-3596, 2009. [7] 王臣, 梁军, 杜善义.电弧加热器流场数值模拟研究[J].材料科学与工艺, 2007, 15(4):579-581. doi: 10.3969/j.issn.1005-0299.2007.04.036Wang C, Liang J, Du S Y. Studies of computational fluid dynamics in the flow field of the AC arc heater[J]. Materials Science and Technology, 2007, 15(4):579-581. doi: 10.3969/j.issn.1005-0299.2007.04.036 [8] 张友华, 陈连忠.超声速湍流导管烧蚀流场稳定性研究[J].宇航材料工艺, 2010, 40(4):64-67. doi: 10.3969/j.issn.1007-2330.2010.04.017Zhang Y H, Chen L Z. Stability of ablative flow field of supersonic turbulent duct[J]. Aerospace Materials and Technology, 2010, 40(4):64-67. doi: 10.3969/j.issn.1007-2330.2010.04.017 [9] 罗跃, 周玮, 杨鸿, 等.电弧加热器湍流平板试验流场计算分析[J].实验流体力学, 2017, 31(2):86-92. http://www.syltlx.com/CN/abstract/abstract11016.shtmlLuo Y, Zhou W, Yang H, et al. CFD analysis of the arc heater turbulent flow field of flat plate testing[J]. Journal of Experiments in Fluid Mechanics, 2017, 31(2):86-92. http://www.syltlx.com/CN/abstract/abstract11016.shtml [10] 韩寅达.超声速湍流流动中平板-楔模型分离、传热和烧蚀试验研究[J].空气动力学学报, 1988, 6(4):463-471. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=QK000001972499Han Y D. Experimental research of flow separation, heat transfer and ablation on flat plate-wedges in supersonic, turbulent flow[J]. Acta Aerodynamica Sinica, 1988, 6(4):463-471. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=QK000001972499 [11] Comfort E H. Ablation measurement in turbulent flow[R]. AIAA-1970-226, 1970. [12] Han Y D. Experimental research on the effect of separation flow on ablation in supersonic turbulent flow[R]. AIAA-1985-0975, 1985. [13] Han Y D. Experimental research on separation, heat transfer and ablation of the model of flat plate in supersonic turbulent flow[R]. AIAA-1986-1237, 1986. [14] 杨鸿.超声速湍流平板烧蚀试验技术研究[D].长沙: 国防科技大学, 2005. http://cdmd.cnki.com.cn/Article/CDMD-90002-2005144131.htmYang H. The research of supersonic turbulence flat ablation test technology[D]. Changsha: The National University of Defense Technology, 2005. http://cdmd.cnki.com.cn/Article/CDMD-90002-2005144131.htm [15] 杨鸿, 陈伟芳, 柳森.电弧湍流平板烧蚀矩形喷管研制及应用[J].实验流体力学, 2006, 20(1):27-30. doi: 10.3969/j.issn.1672-9897.2006.01.007Yang H, Chen W F, Liu S. The development and application on rectangular nozzle of arc turbulent flat plate ablation test[J]. Journal of Experiments in Fluid Mechanics, 2006, 20(1):27-30. doi: 10.3969/j.issn.1672-9897.2006.01.007 -
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