欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
介绍了QDS方法Euler求解器的基本思路，并从以下三个方面做了改进：（1）在统计网格宏观量时，考虑了相邻网格内流动量的梯度，发展成了二阶格式，使得在QDS算法中的粒子重构和网格宏观量统计都达到二阶恪式，由此为充分发展的二阶格式；（2）在进行网格宏观量统计时，提出将按网格进行宏观量统计修改为按粒子位置更新网格宏观量，减少了对粒子进行遍历的次数，大大提高了计算效率；（3）在改进后的二阶格式中引进了斜率限制器，比较了不同斜率限制器的效果。
英文摘要：
The QDS （Quiet Direct Simulation） method for Euler fluid is introduced. As the most impor- tant part,the current method extends the previous Euler solver developed by Albright and M. R. Smith mainly by three aspects：（1） The gradients （density,temperature,velocity） are calculated when updating the grid properties of mass, momentum and energy from the individual particle at the third step in the QDS method,hence a fully improved second order scheme. （2） A kind of new process for updating the grid properties from the individual particle is developed, which cut down the times for the most part to seek the total particles, thus improving the computing efficiency signally. （3） Several slope limiters are employed in the second scheme and their performances are tested.
同期刊论文项目
同项目期刊论文
Effects of Anode Temperature on Working Characteristics and Performance of a Low Power Arcjet Thrust
Thickness and Component Distributions of Yttrium-Titanium Alloy Films in Electron-Beam Physical Vapo
Numerical study of the oscillations induced by shock/shock interaction in hypersonic double-wedge fl
Kinetic assessment of measured mass flow rates and streamwise pressure distributions in microchannel
期刊信息
位置：