Open AccessSimulation of the transition to turbulence in the boundary layer on complex-shaped bodies at an angle of attack
Author(s) -
A. A. Sidorenko,
А. В. Бойко,
K. V. Demyanko,
S. V. Kirilovskiy,
Yu. M. Nechepurenko,
T. V. Poplavskaya
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1404/1/012124
Subject(s) - laminar flow , nacelle , laminar turbulent transition , turbulence , mechanics , boundary layer , fluent , physics , aerospace engineering , materials science , computational fluid dynamics , engineering , thermodynamics , turbine
The paper deals with the numerical simulation of the laminar-turbulent transition as the gas flow moves at a nacelle at transonic speeds. The laminar-turbulent transition position in the 3D boundary layer of the nacelle is found with the aid of the laminar-turbulent transition module based on the e N -method which involves the data of the numerical simulation of the laminar flow at the model with the gas-dynamic software package ANSYS Fluent. Performance of this module is demonstrated as the laminar-turbulent transition, caused by the Tollmien-Schlichting wave and crossflow instabilities, takes place. It is shown that the Tollmien-Schlichting wave instability is the dominating mechanism of the laminar-turbulent transition on the nacelle up to the angle of attack of 7°.