Prediction of Laminar-Turbulent Transition on an Airfoil at High Level of Free-Stream Turbulence
Paper i proceeding, 2013

Prediction of laminar-turbulent transition at high level of free-stream turbulence in boundary layers of airfoil geometries with external pressure gradient changeover is in focus. The aim is a validation of a transition model for transition prediction in turbomachinery applications. Numerical simulations have been performed by using a transition model by Langtry and Menter for a number of different cases of pressure gradient, at Reynolds number-range, based on the airfoil chord, 50 000 ≤ Re ≤ 500 000 and free-stream turbulence intensities 2 % and 4 %. The validation of the computational results against the experimental data showed good performance of used turbulence model for all test cases.

Författare

Valery Chernoray

Chalmers, Tillämpad mekanik, Strömningslära

Proc of EUCASS Conf.

Ämneskategorier

Maskinteknik

Rymd- och flygteknik

Energiteknik

Strömningsmekanik och akustik

Drivkrafter

Hållbar utveckling

Styrkeområden

Transport

Energi

Fundament

Grundläggande vetenskaper