The effect of the cone rotation in the supersonic gas flow on the velocity propagation of perturbations in the boundary layer

• Published in: Acta astronautica Vol. 179; pp. 209 - 212
• Main Authors: Dala, L., Combrink, M., Lipatov, I.I., Ustinov, I.N.
• Format: Journal Article
• Language: English
• Published: Elmsford Elsevier Ltd 01.02.2021; Elsevier BV
• Subjects: Angle of attack; Axisymmetric bodies; Boundary layer; Boundary layer flow; Boundary layers; Disturbances; Enthalpy; Flow control; Flow near a cone; Gas flow; Laminar boundary layer; Mathematical analysis; Perturbation; Propagation; Propagation of disturbances; Propagation velocity; Rotating bodies; Supersonic; Velocity; Weak viscous-inviscid interaction; Zero angle of attack; Supersonic; Weak viscous-inviscid interaction; Flow near a cone; Boundary layer; Propagation of disturbances
• ISSN: 0094-5765; 1879-2030
• DOI: 10.1016/j.actaastro.2020.10.021

The paper aimed at studying the peculiarities of boundary layer on a rotating body. Rotation of axisymmetric bodies is often used for their stabilization at a high velocity motion in the atmosphere. Presented are calculation of boundary layer flow on a rotating cone at zero angle of attack. Longitudinal and full enthalpy profiles in the laminar boundary layer obtained as a result of calculations were used to determine upstream disturbances propagation velocity. New integral relation was determined to find out disturbances propagation velocity for the regime of weak hypersonic viscous-inviscid interaction. Effects of surface rotation velocity along with the temperature factor influence were investigated. •Effects of upstream disturbances propagation in the boundary layer are investigated.•Disturbances propagation was analyzed for the weak interaction regime.•New results have been obtained for 3D flow near the rotating cone.•Quantitative data were obtained for velocity of disturbances propagation.