Numerical Simulations on Hypersonic Shock Wave/Boundary Layer Interactions by a Third-order Optimize

来源 :Transactions of Nanjing University of Aeronautics & Astronau | 被引量 : 0次 | 上传用户:jianweify
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
In this paper, a new third-order optimized symmetric weighted essentially non-oscillatory (WENO-OS3) scheme is used to simulate the hypersonic shock wave/boundary layer interactions. Firstly, the scheme is presented with the achievement of low dissipation in smooth region and robust shock-capturing capabilities in discontinuities. The Maxwell slip boundary conditions are employed to consider the rarefied effect near the surface. Next, several validating tests are given to show the good resolution of the WENO-OS3 scheme and the feasibility of the Maxwell slip boundary conditions. Finally, hypersonic flows around the hollow cylinder truncated flare and the 25o/55o sharp double cone are studied. Discussions are made on the characteristics of the hypersonic shock wave/boundary layer interactions with and without the consideration of the slip effect. The results indicate that the scheme has a good capability on predicting heat transfer and a high resolution on describing fluid structures. With the slip boundary conditions, the separation region at the corner is smaller and the prediction is more accurate than that with no-slip boundary conditions. In this paper, a new third-order optimized symmetric weighted essentially non-oscillatory (WENO-OS3) scheme is used to simulate the hypersonic shock wave / boundary layer interactions. and robust shock-capturing capabilities in discontinuities. The Maxwell slip boundary conditions are employed to consider the rarefied effect near the surface. Next, several validating tests are given to show the good resolution of the WENO-OS3 scheme and the feasibility of the Maxwell slip boundary conditions. Finally, hypersonic flows around the hollow cylinder truncated flare and the 25o / 55o sharp double cone are studied. Discussions are made on the characteristics of the hypersonic shock wave / boundary layer interactions with and without the consideration of the slip effect. The results indicate that the scheme has a good capability on predicting heat transfer an With the slip boundary conditions, the separation region at the corner is smaller and the prediction is more accurate than that with no-slip boundary conditions.
其他文献
3月29日,湖北省科技厅在武汉主持召开了由湖北赵李桥茶厂有限责任公司和华中农业大学完成的“低氟青砖茶工艺技术研究与新产品开发”科技成果鉴定会。鉴定委员会听取了项目组
水火电同价提出一年了,开始是在水电国际研讨会上爆料的,接着价格主管部门组织水电比重大的几个省调查、研究、讨论。我国自2002年实行厂网分开的电力体制改革后,各种发电厂(
高速可压缩流动的计算方法应用于不可压低速问题会因为当地速度和当地音速量级相差较大产生刚性问题并导致数值收敛困难。预处理方法引入预处理矩阵使传统的可压缩方法具备了
期刊
含有主动材料的复合结构越来越多的应用于自适应结构中。主动纤维材料的应用为复合结构带来了新的特性也使其设计更为复杂。本文针对受压电纤维材料(MFC)驱动的主动材料复合
期刊
蜻蜓等昆虫作为飞行领域的佼佼者具有优异的机动性能,然而基于仿生学研制的微型扑翼飞行器在机动性能方面却远不如昆虫。为研究昆虫机动飞行时的气动特性,本文采用有限体积法
期刊
采用基于密度泛函理论的第一性原理平面波赝势方法,研究了常用合金化金属元素与非金属元素在晶界的偏析及其相互作用。选取两种类型的晶界结构进行研究:密排的(50)3(111)[110
期刊
1当前销售电价体系存在的若干问题1.1销售电价体系复杂、分类众多目前湖南省的电价从用途上主要分为六大类、八小类:即照明电价(生活、非生活、商业)、非工业、普通工业电价
紫杉醇 (Paclitaxel ,Taxel)是从紫杉中分离出的新的双萜烯成分。分子式为C4 1H51NO14 ,分子量为 85 3.92 ,为白色或类白色粉末状 ,具有高度亲脂性 ,不溶于水 ,溶点大约 2 16~ 2 17℃。其作用机制
共刺激因子B7是目前肿瘤免疫学方面研究的热点,本文概述了B7分子与恶性淋巴瘤之间的关系,从而寻找出一些恶性淋巴瘤的免疫治疗途径。 Co-stimulatory factor B7 is currentl
平动点附近周期轨道的不变流形因其在低能轨道转移中起着重要作用而受到广泛关注。在进行低能轨道设计的过程中不变流形要实时地进行能量匹配,但是利用传统的数值积分方法进
期刊