国家自然科学基金(91216111)

作品数:6被引量:4H指数:1
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相关作者:赵磊曹伟更多>>
相关机构:天津大学更多>>
相关期刊:《Science China(Physics,Mechanics & Astronomy)》《空气动力学学报》《机械设计》《Applied Mathematics and Mechanics(English Edition)》更多>>
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热流数值计算中网格效应的研究
《机械设计》2018年第9期23-26,共4页朱增起 赵磊 
国家自然科学基金重点资助项目(11332007);国家自然科学基金资助项目(91216111)
以高超声速零攻角钝头圆锥为研究对象,选择不同的网格分布,利用直接数值模拟(DNS)方法计算表面热流,以分析网格分布对钝头表面热流计算的影响。研究发现,流向网格雷诺数和法向网格雷诺数均对驻点热流计算具有一定的影响,因此为准确计算...
关键词:网格效应 直接数值模拟 网格雷诺数 驻点 
一种无数值积分的间断Galerkin有限元方法
《空气动力学学报》2018年第4期596-604,共9页马小乐 曹伟 
国家自然科学基金(91216111)
在使用间断Galerkin有限元方法的计算过程中,需要构造相应的积分表达式作为数值求解的出发点,继而会引入体积分和面积分。对于这些积分项的值,一般需要通过数值积分的方法获得。当需要使用高阶间断Galerkin有限元方法时,数值积分计算精...
关键词:间断Galerkin有限元 Jacobi正交多项式 显式半离散格式 无数值积分 高精度 
Stability analysis method considering non-parallelism:EPSE method and its application被引量:3
《Applied Mathematics and Mechanics(English Edition)》2016年第1期27-36,共10页Gaotong YU Jun GAO Jisheng LUO 
Project supported by the National Natural Science Foundation of China(Nos.11332007,11172203,and 91216111)
The e-N method is widely used in transition prediction. The amplitude growth rate used in the e-N method is usually provided by the linear stability theory (LST) based on the local parallel hypothesis. Considering t...
关键词:parabolized stability equation (PSE) expansion of PSE (EPSE) linear stability theory (LST) normalized method non-parallel 
Self-consistent parabolized stability equation(PSE) method for compressible boundary layer被引量:1
《Applied Mathematics and Mechanics(English Edition)》2015年第7期835-846,共12页Yongming ZHANG Caihong SU 
supported by the National Natural Science Foundation of China(Nos.11202147,11472188,11332007,11172203,and 91216111);the Specialized Research Fund(New Teacher Class)for the Doctoral Program of Higher Education(No.20120032120007)
The parabolized stability equation (PSE) method has been proven to be a useful and convenient tool for the investigation of the stability and transition problems of boundary layers. However, in its original formulat...
关键词:parabolized stability equation (PSE) boundary layer direct numericalsimulation (DNS) SELF-CONSISTENT 
Direct numerical simulation methods of hypersonic flat-plate boundary layer in thermally perfect gas
《Science China(Physics,Mechanics & Astronomy)》2014年第2期336-344,共9页JIA WenLi CAO Wei 
supported by the National Nature Science Foundation of China(Grant Nos.11172203 and 91216111);the National Basic Research Program of China(Grant No.2009CB724103)
High-temperature effects alter the physical and transport properties of air such as vibrational excitation in a thermally perfect gas,and this factor should be considered in order to compute the flow field correctly.H...
关键词:hypersonic fiat-plate boundary layer direct numerical simulation variable specific heat equivalent specific heat ratio 
Prediction of hypersonic boundary layer transition on sharp wedge flow considering variable specific heat
《Applied Mathematics and Mechanics(English Edition)》2014年第2期143-154,共12页毛旭 曹伟 
supported by the National Natural Science Foundation of China(Nos.11172203 and91216111);the National Basic Research Program of China(No.2009CB724103)
When the air temperature reaches 600 K or higher, vibration is excited. The specific heat is not a constant but a function of temperature. Under this condition, the transition position of hypersonic sharp wedge bounda...
关键词:hypersonic flow wedge boundary layer variable specific heat transitionprediction improved eN method 
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