NUMERICAL ANALYSIS OF THE FLOW PATTERN AND VORTEX BREAKDOWN OVER A PITCHING DELTA WING AT SUPERSONIC SPEEDS

被引：3

作者：

Hadidoolabi, M. ^{[1
]}

Ansarian, H. ^{[1
]}

机构：

[1] Malek Ashtar Univ Technol, Tehran, Iran

来源：

JOURNAL OF APPLIED MECHANICS AND TECHNICAL PHYSICS | 2017年 / 58卷 / 03期

关键词：

delta wing; flow pattern; supersonic flow; vortex breakdown; AERODYNAMICS; LOCATION;

D O I：

10.1134/S0021894417030038

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

A supersonic compressible flow over a 60A degrees swept delta wing with a sharp leading edge undergoing pitching oscillations is computationally studied. Numerical simulations are performed by the finite volume method with the use of the k-omega turbulence model for various Mach numbers and angles of attack. Variations of flow patterns in a crossflow plane, hysteresis loops associated with the vortex core location, and vortex breakdown positions during a pitching cycle are investigated. Trends for various Mach numbers, mean angles of attack, pitching amplitudes, and pitching frequencies are illustrated.

引用

页码：392 / 401

页数：10

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