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- Article name
- Study of the influence of weak distortions of spherical blunting on aerodynamic characteristics of rotary bodies at supersonic flow with account for interference
- Authors
- SHVALEVA R. K., , src@makeyev.ru, Joint Stock Company "Academician V. P. Makeyev State Rocket Center"; South Ural Scientific Centre, Miass, Chelyabinsk Region, Russia
KALASHNIKOV S. T., , ofpat@mail.ru, South Urals Federal Research Center of Mineralogy and Geoecology UB of the RAS, Miass, Chelyabinsk Region, Russia
MOKIN Yu. A., , ofpat@mail.ru, South Urals Federal Research Centre of Mineralogy and Geoecology of the UB RAS, Miass, Chelyabinsk Region, Russia
- Keywords
- supersonic flow / rotary body / blunted cone / composite thermal protection material / weak surface distortion / small attack angle / variance of coefficients of aerodynamic normal force and pitch moment
- Year
- 2024 Issue 4 Pages 3 - 10
- Code EDN
- WIQYUB
- Code DOI
- 10.52190/2073-2562_2024_4_3
- Abstract
- The article considers one of the most topical issue of the definition of aerodynamic characteristics of high-speed rotary-shaped re-entry vehicles (RVs) with weak composite thermal protective surface distortions of spherical blunting - the issue of the evaluation of aerodynamic forces and moments. The quantitative evaluations of the influence of the mentioned distortions with account for the interference on coefficients of aerodynamic normal force and pitch moment for Mach number M∞ = 6, 10, 20 are obtained on the basis of the analysis of resulted computations of supersonic flow around a 10°-cone with the given distortion of sphere blunting. The computations are based on Euler equations for perfect gas with adiabatic index k = 1.4, k = 1.2 and a modeled equilibrium dissociating air, the cone length is up to 100 units of the blunting radius. The obtained results are analyzed to estimate the level of the influence of interference.
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