REVISIT TO THE MODIFIED MULTIPLE ONE-DIMENSIONAL ADAPTIVE GRID METHOD
REVISIT TO THE MODIFIED MULTIPLE ONE-DIMENSIONAL ADAPTIVE GRID METHOD
复制标题
重新审视改进的多一维自适应网格方法
DOI：
10.1080/10407799608914984
复制
发表时间：
1996
影响因子：
1
通讯作者：
Z. Lee
中科院分区：
文献类型：
--
作者：
Y. Jeng;Z. Lee
摘要本文采用多重一维自适应网格方法，通过改变自适应因子的大小来提高网格的自适应性。一个简单的平均公式也被用来平滑网格系统。三个例子进行审查：（1）定常各向同性热传导问题，（2）定常层流驱动空腔流，（3）绕4%圆凸块的无粘超音速流。数值结果表明，如果最终的自适应因子是适度的，使用一个常数的自适应因子的程序效果最好。另一方面，如果最终自适应因子相对较大（即，没有网格平滑器的结果网格系统涉及过多的网格偏斜度），建议使用增量自适应因子的程序。
Abstract The multiple one-dimensional adaptive grid method is repeatedly applied in this work to improve grid adaptivity with constant or incremental adaptive factors. A simple averaging formula is also employed to smooth the grid system. Three examples are examined: (1) a steady isotropic heat conduction problem, (2) a steady laminar driven cavity flow, and (3) an inviscid supersonic flow over a 4% circular bump. Numerical results show that, if the final adaptive factor is moderate, the procedure using a constant adaptive factor works best. On the other hand, if the final adaptive factor is relatively large (i.e., the resulting grid system without the grid smoother involves excess grid skewness), the procedure using the incremental adaptive factor is recommended.