摘要
本文对作为平稳随机过程的脉动壁压的空—时特征进行了研讨,证实了局部紊动冻结性假设在自由水跃区基本成立,确定了脉动壁压传送速度,探讨了积分尺度沿流分布,首次提出了积分尺度在水跃区的自模拟特性。
This paper presents a studg of the spatial—time characteristic of fiuctuation pressure on uau ahich is treated as a stativnarg random process. The basic success of the hgpothesis of the partial 'Turbulent Freezing' on the free jump part has been verified. A trasmitting speed of fluctuation pressure on coan is determined, and the distribution of integral length among the water course is discassed. The auto—model cnaracteristic of integral lengral length in jump is presented for the first time.
出处
《南昌大学学报（工科版）》
CAS
1989年第1期14-21,共8页
Journal of Nanchang University(Engineering & Technology)
关键词
自模拟
相干性
auto—model
coherence
