Results 11 to 20 of about 14,137 (299)
International Journal of Aerospace Engineering, 2022 Multi-interface is a typical feature of solid rocket motor nozzles, and the interface evolution law is an important aspect to analyze the thermo-structural response of solid rocket motor nozzles.
Lin Sun +4 more
doaj +1 more source
Film Cooling in Rocket Nozzles [PDF]
, 2020 Abstract In this project supersonic, tangential film cooling in the expansion part of a nozzle with rocket-engine like hot gas conditions was investigated. Therefore, a parametric study in a conical nozzle was conducted revealing the most important influencing parameter on film cooling for the presented setup.
Ludescher, Sandra Christine +1 more
openaire +3 more sources
Design and analysis of rocket nozzle
Materials Today: Proceedings, 2021 Abstract This paper is about the design and analysis of two different rocket nozzle configurations. First configuration is without any fillets and curved surfaces and second configuration is with fillets and curved surfaces. Second configuration is used since stress concentration will be more at the corners if we don’t have an optimized geometry ...
Bhaskara Rao Lokavarapu, R. Harikrishnan
openaire +2 more sources
Impacts of Micro-Deviations of Aperture on the Characteristics of Collision Atomization Field
Applied Sciences, 2022 As the final flow channel of the liquid rocket engine, the manufacturing of impinging atomization nozzles has become a critical link in the manufacture of impinging atomization components. At present, the high-precision machining of millimeter nozzles in
Yarui Ma +3 more
doaj +1 more source
Altitude-compensating axisymmetric supersonic nozzle design and flow analysis [PDF]
INCAS Bulletin, 2023 Altitude-adapted nozzles are designed to facilitate flow adaptation during rocket ascent in the atmosphere, without requiring mechanical activation. As a consequence, the performance of the nozzle is significantly improved.
Sidali HAIF, Hakim KBAB, Amina BENKHEDDA
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Ablation performance of 3D C/SiC composite nozzles under double-component liquid power environment
Cailiao gongcheng, 2022 In order to explore the ablation characteristics of C/SiC ceramic composite nozzles in the working environment of liquid rocket engines, 3D C/SiC composite nozzle was prepared by the precursor impregnation pyrolysis(PIP) process, and the ablation test of
BAI Longteng +4 more
doaj +1 more source
Scaling of Erosion Rate in Subsonic Jet Experiments and Apollo Lunar Module Landings [PDF]
12th Biennial International Conference on Engineering,
Construction, and Operations in Challenging Environments (Earth & Space
2010), March 14-17, 2010, Honolulu, Hawaii, United States, 2021 Small scale jet-induced erosion experiments are useful for identifying the scaling of erosion with respect to the various physical parameters (gravity, grain size, gas velocity, gas density, grain density, etc.), and because they provide a data set for benchmarking numerical flow codes.
arxiv +1 more source
Propulsion tests on ultra-high-temperature ceramic matrix composites for reusable rocket nozzles
Journal of Advanced Ceramics, 2023 Ultra-high-temperature ceramic matrix composites (UHTCMCs) based on a ZrB2/SiC matrix have been investigated for the fabrication of reusable nozzles for propulsion.
Diletta Sciti +8 more
doaj +1 more source
Throat length effect on the flow patterns in off-design conical nozzles [PDF]
FME Transactions, 2022 In the present work, a flow field study was performed for off-design conical nozzles with non-circular cylindrical throat sections such as those found in experimental sounding rocket motor applications. The flow field was simulated with the RANS model in
Tolentilo San Luis, Mirez Jorge
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Design of a rapid transit to Mars mission using laser-thermal propulsion [PDF]
Acta Astronaut. 192 (2022) 143-156, 2022 The application of directed energy to spacecraft mission design is explored using rapid transit to Mars as the design objective. An Earth-based laser array of unprecedented size (10~m diameter) and power (100~MW) is assumed to be enabled by ongoing developments in photonic laser technology.
arxiv +1 more source