DOAJ Open Access 2023

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

Anna Utkina Andrey Kozelkov Roman Zhuchkov Dmitry Strelets

Abstrak

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.

Topik & Kata Kunci

Thermodynamics Descriptive and experimental mechanics

Penulis (4)

Anna Utkina

Andrey Kozelkov

Roman Zhuchkov

Dmitry Strelets

Format Sitasi

APA MLA BibTeX

Utkina, A., Kozelkov, A., Zhuchkov, R., Strelets, D. (2023). Numerical Study of the Influence of the Critical Reynolds Number on the Aerodynamic Characteristics of the Wing Airfoil. https://doi.org/10.3390/fluids8100276

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Informasi Jurnal

Tahun Terbit: 2023
Sumber Database: DOAJ
DOI: 10.3390/fluids8100276
Akses: Open Access ✓