NUMERICAL SIMULATION OF BOUNDARY LAYER ON BLADE SURFACE UNDER DIFFERENT INLET FLOW CONDITIONS

刘波; 王掩刚; 高丽敏

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NUMERICAL SIMULATION OF BOUNDARY LAYER ON BLADE SURFACE UNDER DIFFERENT INLET FLOW CONDITIONS

更新时间：2026-07-07

- NUMERICAL SIMULATION OF BOUNDARY LAYER ON BLADE SURFACE UNDER DIFFERENT INLET FLOW CONDITIONS
- Vol. 14, Issue 1, (1999)
- 作者机构：
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- Published：1999
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刘波, 王掩刚, 高丽敏. NUMERICAL SIMULATION OF BOUNDARY LAYER ON BLADE SURFACE UNDER DIFFERENT INLET FLOW CONDITIONS[J]. 1999, 14(1).
DOI：

刘波, 王掩刚, 高丽敏. NUMERICAL SIMULATION OF BOUNDARY LAYER ON BLADE SURFACE UNDER DIFFERENT INLET FLOW CONDITIONS[J]. 1999, 14(1). DOI：

摘要

通过对二维压气机叶栅叶片表面附面层流态的数值模拟分析

研究了在不同来流马赫数和冲角下

叶片表面层流附面层向紊流附面层的转捩过程

转捩区域的大小等。归纳分析了部分来流条件对转捩过程的影响机制。结果表明：来流马赫数和冲角对转捩起始点和结束点的位置

即转捩所占区域的大小有重要影响。研究工作取得的进展不仅为进一步从机理上深刻认识来流条件对叶片表面附面层流态的影响机理提供了一定的科学依据

而且对今后指导叶片表面附面层流态模似实验工作的开展具有重要参考价值。

Abstract

The boundary layer flow pattern on the blade surface of a two dimensional cascade is simulated numerically to investigate the transition process from laminar to turbulent flow and the length scale of transition region under different inlet Mach number and incidence.The influence mechanism of some inlet flow conditions on the transition is also elaborated.The results indicate that the inlet Mach number and incidence have significant effects on the starting and ending positions of the viscous flow transition.Under an enhanced inlet Mach number

the starting position of the transition moves forward so that the transition region becomes small.As the inlet incidence decreases

the transition region becomes smaller.

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