Abstract:
Results of experimental investigations of trans- or supersonic flow around two bodies (cone–disk or sphere–disk) connected by a cylindrical rod along the axis of symmetry are presented. The special features of the flow are analyzed. It is found that the dependence of the drag coefficient Cx of a pair of bodies on the Mach number within the range 0.6⩽M⩽1.7 is nonmonotonic. The reasons for the hysteresis in the dependences Cx(M) for two bodies at the stages of flow acceleration and deceleration and discrete variation of the Mach number are clarified. The influence of cone angles and sizes of both bodies on the drag coefficient is estimated.
Keywords:
trans- and supersonic flow, drag coefficient, hysteresis, cone–disk pair, discrete variation of the Mach number.
Citation:
N. N. Pilyugin, V. S. Khlebnikov, “Investigation of aerodynamic drag of two bodies in trans- and supersonic flows”, Prikl. Mekh. Tekh. Fiz., 44:2 (2003), 42–48; J. Appl. Mech. Tech. Phys., 44:2 (2003), 187–192
\Bibitem{PilKhl03}
\by N.~N.~Pilyugin, V.~S.~Khlebnikov
\paper Investigation of aerodynamic drag of two bodies in trans- and supersonic flows
\jour Prikl. Mekh. Tekh. Fiz.
\yr 2003
\vol 44
\issue 2
\pages 42--48
\mathnet{http://mi.mathnet.ru/pmtf2477}
\elib{https://elibrary.ru/item.asp?id=17274769}
\transl
\jour J. Appl. Mech. Tech. Phys.
\yr 2003
\vol 44
\issue 2
\pages 187--192
\crossref{https://doi.org/10.1023/A:1022536208582}
Linking options:
https://www.mathnet.ru/eng/pmtf2477
https://www.mathnet.ru/eng/pmtf/v44/i2/p42
This publication is cited in the following 1 articles:
N. N. Pilyugin, V. S. Khlebnikov, “Development of a parachute system for deceleration of flying vehicles in supersonic regimes”, J. Appl. Mech. Tech. Phys., 51:5 (2010), 323–332