Effect of a change in the sign of the lifting force for power-law bodies of revolution
https://doi.org/10.18384/2310-7251-2022-2-42-50
Abstract
Aim. For a body of revolution with a power-law generatrix, we investigate the Galkin effect – a change in the sign of the lifting force with a change in the angle of attack in high-speed flat flows.
Methodology. A method for calculating aerodynamic forces and moments based on the hypothesis of locality is used. Using this method, aerodynamic forces and moments are calculated by numerical integration over body triangulation, taking into account shading effects.
Results. The critical elongation of a power-law body of revolution is calculated as a function of the degree of generatrix in a wide range of Reynolds numbers and for various temperature factors.
Research implications. The obtained results are of great importance for the creation of aircrafts in the aerospace industry.
About the Authors
S. L. Gorelov
Moscow Institute of Physics and Technology
Russian Federation
Russian Federation
Sergey L. Gorelov – Dr. Sci. (Phys.-Math.), Prof., Department of Computer Modeling
Institutskii per. 9, Dolgoprudnyi 141701, Moscow Region
F. E. Dorofeev
Moscow Institute of Physics and Technology
Russian Federation
Russian Federation
Fedor E. Dorofeev – Postgraduate Student, Department of Computer Modeling
Institutskii per. 9, Dolgoprudnyi 141701, Moscow Region
References
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