MULTISCALE GENERATION OF TURBULENCE
MULTISCALE GENERATION OF TURBULENCE
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DOI：
10.1142/s1756973709000098
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发表时间：
2009-01-01
影响因子：
1.5
通讯作者：
Vassilicos, J. C.
中科院分区：
文献类型：
--
作者：
Laizet, S.;Vassilicos, J. C.
本文简要介绍了分形的物理和工程，然后简要介绍了由多尺度流动驱动产生的流体湍流。由于浸入边界法（IBM）和万亿级并行高性能计算能力，这种湍流的数值计算现在开始成为可能。本文首次对分形网格产生的湍流进行了直接数值模拟（DNS），并与最近的风洞测量结果进行了比较。
This paper presents a brief but general introduction to the physics and engineering of fractals, followed by a brief introduction to fluid turbulence generated by multiscale flow actuation. Numerical computations of such turbulent flows are now beginning to be possible because of the immersed boundary method (IBM) and terascale parallel high performance computing capabilities. The first-ever direct numerical simulation (DNS) results of turbulence generated by fractal grids are detailed and compared with recent wind tunnel measurements.