Numerical Study of the Influence of the Critical Reynolds Number on the Aerodynamic Characteristics of the Wing Airfoil

被引：0
|
作者：
Utkina, Anna [1 ]
Kozelkov, Andrey [1 ,2 ,3 ]
Zhuchkov, Roman [2 ]
Strelets, Dmitry [3 ]
机构：
[1] Nizhnii Novgorod State Tech Univ, Dept Appl Math, 24 ul Minina, Nizhnii Novgorod 603950, Russia
[2] Russian Fed Nucl Ctr, All Russian Res Inst Expt Phys FSUE RFNC VNIIEF, Mira Ave 37, Nizhnii Novgorod 607188, Russia
[3] Moscow Inst Aviat Technol, Aircraft Design & Certificat Dept, Volokolamskoe Shosse 4, Moscow 125993, Russia
来源：
FLUIDS | 2023年 / 8卷 / 10期
关键词：
HGR01; profile; leading-edge separation; laminar bubble; Navier-Stokes equations; turbulence model;
D O I：
10.3390/fluids8100276
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
The paper reports the results of a study concerned with the influence of the size of the leading edge laminar bubble on the aerodynamic characteristics of the HGR01 airfoil. The completely turbulent and transient flows are considered. The mechanism of the appearance and interaction of laminar and turbulent flow separation near the leading and trailing edges of the airfoil is studied in detail. In the paper, the dependence of aerodynamic forces on the critical Reynolds number for the HGR01 airfoil is discussed. It has been established that the separation bubble at the leading edge can only be obtained using the laminar-turbulent transition model. Fully turbulent models are not able to show this feature of the airfoil flow. Graphs of the lift coefficient as a function of the critical Reynolds number, as well as the pressure distribution as a function of the size of the laminar bubble, are shown.
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页数：12
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