Articles with "blunt body" as a keyword



Heat reduction mechanism of hypersonic spiked blunt body with installation angle at large angle of attack

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Published in 2019 at "Acta Astronautica"

DOI: 10.1016/j.actaastro.2019.07.003

Abstract: Abstract The spiked blunt body is usually adopted to reduce the aerodynamic heating of hypersonic vehicles. In this paper, the heat reduction mechanism of hypersonic spiked blunt body with installation angle at large angle of… read more here.

Keywords: angle attack; blunt body; body; installation angle ... See more keywords

Multi-objective design optimization of blunt body with spike and aerodisk in hypersonic flow

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Published in 2019 at "Aerospace Science and Technology"

DOI: 10.1016/j.ast.2019.04.030

Abstract: Abstract In order to reduce the aerodynamic drag and aerodynamic heating of the hypersonic blunt body, the aerodisk and spike are installed on the blunt body. In this paper, the influences of the aerodisk on… read more here.

Keywords: coefficient; aerodisk; method; blunt ... See more keywords

Parametric study on the heat transfer of a blunt body with counterflowing jets in hypersonic flows

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Published in 2018 at "International Journal of Heat and Mass Transfer"

DOI: 10.1016/j.ijheatmasstransfer.2017.12.115

Abstract: Abstract A quantified parametric study for the heat transfer acting on a hypersonic blunt body with counterflowing jets is presented. Three-dimensional turbulent Navier-Stokes equations are solved to simulate freestream-jet interactive flowfields. The freestream and jet… read more here.

Keywords: heat; blunt body; heat transfer; transfer ... See more keywords
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Parameter study on drag and heat reduction of a novel combinational spiked blunt body and rear opposing jet concept in hypersonic flows

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Published in 2020 at "International Journal of Heat and Mass Transfer"

DOI: 10.1016/j.ijheatmasstransfer.2019.119236

Abstract: Abstract A novel combinational configuration is proposed for drag and heat reduction in this paper, the CFD numerical method is adopted to study its drag and heat reduction performance. The results show that the aerodisk… read more here.

Keywords: reattachment shock; blunt body; shock wave; shock ... See more keywords

Performance-enhanced piezoelectric energy harvesting system induced by Karman vortex using concave pseudo-blunt body structure

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Published in 2024 at "Smart Materials and Structures"

DOI: 10.1088/1361-665x/ada2cd

Abstract: Piezoelectric energy harvesting is one of the important technologies for environmental monitoring sensors to realize self-power supply. In recent years, the technology of fluid-induced piezoelectric vibration energy harvesting for blunt body structures based on Karman… read more here.

Keywords: pseudo blunt; energy harvesting; blunt body; energy ... See more keywords

Aero-spike and aero-disk effects of on wave drag reduction of supersonic flow past over blunt body

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Published in 2024 at "Aircraft Engineering and Aerospace Technology"

DOI: 10.1108/aeat-04-2023-0088

Abstract: Purpose The purpose of this study is to explore the effects of aerospike and hemispherical aerodisks on flow characteristics and drag reduction in supersonic flow over a blunt body. Specifically, the study aims to analyze… read more here.

Keywords: disk; blunt body; aero; reduction ... See more keywords
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Passive Control of Transonic Flow over a Blunt Body Using Aerospikes

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Published in 2020 at "Journal of Spacecraft and Rockets"

DOI: 10.2514/1.a34668

Abstract: Blunt nose cones used in launch vehicles can excite buffet due to shock oscillations over the payload fairing on the leeward side at transonic Mach numbers and small angles of attack. Wind-tunnel t... read more here.

Keywords: control transonic; flow blunt; blunt; passive control ... See more keywords

Simulation and Experiments on Optimization of Vortex-Induced Vibration Power Generation System Based on Side-by-Side Double Blunt Bodies

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Published in 2024 at "Energies"

DOI: 10.3390/en17215291

Abstract: In order to improve the utilization efficiency of converting low-flow current energy into electric energy for Reynolds number 10,000 ≤ Re ≤ 40,000, this paper proposes a vortex-induced vibration power generation system based on a… read more here.

Keywords: system; power; blunt body; energy ... See more keywords