TsAGI specialist wins the Academician G.G. Cherny Award
23 January 2017
- Standard turbulence model q-w
- New turbulence model
Aleksey Troshin, a young scientist of the Central AeroHydrodynamic Institute named after professor N.E. Zhukovsky (TsAGI, a part of the Scientific Research Center “Institute named after N.E. Zhukovsky”) became a winner of the Academician G.G. Cherny Award in the field of aeromechanics and gas dynamics (representing young scientists under 35). His paper entitled “A Reynolds Stress Differential Model Focused on Description of Mixing Layers and Streams” received this prestigious science award. The award ceremony was held on January 23 in the Institute of Mechanics of Lomonosov Moscow State University (Moscow).
The paper proposes modification of the Reynolds stress differential model to improve description of spatial evolving (time-varying) flows with streams. This model is non-linear and semi-empirical (based on experimental findings). It is considerably more accurate than the present-day linear models based on the Boussinesq hypothesis. The research results may be used for enhancement of fuel efficiency of a high-bypass turbojet engine of a civil medium- and long-haul aircraft.
“There are still a lot of interesting issues and opportunities to refine the proposed modern turbulence (a complex eddy flow) model in this field,” Aleksey Troshin, a junior research assistant of TsAGI’s Propulsion Unit Aerodynamics Department, the Candidate of Science (Physics and Mathematics), said. “I’m sure that the approaches designed in this paper will be useful in future development of calculation methods, for example, in such a promising field as large eddies simulation methods.”