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Estimating the Thermal State of a Blunted Wedge in a High-Velocity Gas Flow

Authors: Zinin K.М., Aliev Az.A., Tovstonog V.A. Published: 20.07.2019
Published in issue: #3(126)/2019  

DOI: 10.18698/0236-3941-2019-3-29-40

 
Category: Aviation and Rocket-Space Engineering | Chapter: Aerodynamics and Heat Transfer Processes in Aircrafts  
Keywords: high-velocity aircraft, aero-dynamic heating, thermal protection, refractory oxide materials, thermal state

The paper considers the possibility of using refractory oxide materials in thermal protection designed for those structural components of high-velocity atmospheric aircraft that are subjected to significant thermal loading. We present numerical analysis results concerning the thermal state of an acute wedge with a blunted edge positioned in a high-velocity airflow and made of aluminium and zirconium oxides. We studied a wedge featuring a small blunt radius at a range of altitudes and determined which flight velocities do not lead to the aerodynamic heating temperature in the wedge exceeding the melting point of its materials

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