Numerical Study of the Influence of the Critical Reynolds Number on the Aerodynamic Characteristics of the Wing Airfoil-Reference-Cited by-同舟云学术

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

Published:2023-10-13 Issue:10 Volume:8 Page:276
ISSN:2311-5521
Container-title:Fluids
language:en
Short-container-title:Fluids

Author:

Utkina Anna¹,Kozelkov Andrey¹²³^ORCID,Zhuchkov Roman²,Strelets Dmitry³^ORCID

Affiliation:

1. Department of Applied Mathematics, Nizhny Novgorod State Technical University n.a. R.E. Alekseev, 24 ul. Minina, Nizhny Novgorod 603155, Russia

2. Russian Federal Nuclear Center All-Russian Research Institute of Experimental Physics FSUE RFNC—VNIIEF, Sarov, Mira Ave, 37, Nizhny Novgorod 607188, Russia

3. Aircraft Design and Certification Department, Moscow Aviation Institute, Volokolamskoe Shosse, 4, Moscow 125993, Russia

Abstract

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.

Funder

Ministry of Science and Higher Education of the Russian Federation

Science and Universities National Project under the Young Scientists Lab Program of the RF Ministry of Education and Science—project identifier

Council of the Grants of the President of the Russian Federation for state support of Leading Scientific Schools of the Russian Federation

Publisher

MDPI AG

Subject

Fluid Flow and Transfer Processes,Mechanical Engineering,Condensed Matter Physics

Link

https://www.mdpi.com/2311-5521/8/10/276/pdf

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