Exploiting nozzle geometry to predict resolution in extrusion-based bioprinting: mathematical modelling of a power-law fluid [PDF]
Royal Society Open ScienceExtrusion-based additive manufacturing (AM) is a popular technique used in the fabrication of three-dimensional constructs. Owing to the nonlinear manner in which process parameters affect resolution and printability, the optimal combination remains ...
Amy Victoria Tansell +5 more
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Numerical simulation on the pressure distribution of hydraulic jet perforation tunnel in natural gas hydrate reservoirs [PDF]
Scientific ReportsHydrajet fracturing could be a promising technique for increasing hydrate production; however, the pressure distribution law inside the perforation tunnel must first be investigated.
Jiawei Zhou +7 more
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Performance of Two Types of High Speed, High Efficiency Axisymmetric Intakes [PDF]
Journal of Applied and Computational Mechanics, 2021 Performance of two axisymmetric air intakes are compared at conditions suitable for Mach number range from 2 to 8. First is the Busemann intake and second is the reversed isentropic nozzle. The isentropic nozzle is built by the method of characteristics.
Vladislav Galkin +4 more
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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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Study on the Influence of Nozzle Ablation on the Performance of the Solid Rocket Motor
Aerospace, 2023 As a key component of the solid rocket motor, nozzle ablation is very important to the performance of the motor. In order to study the influence of the law of nozzle ablation on motor performance, a two-dimensional axisymmetric model of a ground state ...
Weiqiang Huang +4 more
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Finite Element Analysis of Nozzle Erosion Caused by Abrasive Particles of Ultra High Pressure Water Jet [PDF]
Cailiao Baohu, 2022 In order to analyze and solve the erosion of the inside of nozzle caused by high - speed abrasive particles for improving the nozzle’s erosion and wear resistances and optimizing the structure design of ultra - high pressure jet nozzle, transient two ...
HUO Hongbo, LI Zhong, ZHANG Ming, ZHANG Binqi, HE Shiming, ZHANG Zhi
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Strength of Composite Transport and Launch Container for Rocket Launch
Journal of Mechanical Engineering, 2023 A transport and launch container for launching rockets made of fiberglass is considered. The main goal of the paper is to calculate the stress state of this container and check the strength conditions.
Kostiantyn V. Avramov +5 more
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Thrust Vectoring of a Fixed Axisymmetric Supersonic Nozzle Using the Shock-Vector Control Method
Fluids, 2021 The application of the Shock Vector Control (SVC) approach to an axysimmetric supersonic nozzle is studied numerically. SVC is a Fluidic Thrust Vectoring (FTV) strategy that is applied to fixed nozzles in order to realize jet-vectoring effects normally ...
Emanuele Resta +2 more
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Design and performance evaluation of a high temperature axisymmetric plug nozzle [PDF]
INCAS Bulletin, 2023 In this study, a method for designing supersonic nozzles with axisymmetric plugs at high temperature has been proposed. The approach is based on the theory of Prandtl-Mayer expansion at high temperatures using the method of characteristics.
Ahmed ABDALLAH ELHIRTSI, Toufik ZEBBICHE
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Engineering Science and Technology, an International Journal, 2019 In this paper, numerical simulations are conducted to visualize the fluid flow and thermal characteristics of a non-axisymmetric convergent nozzle. The novel design methodology is based on curve-fitting approach.
Manoj Kumar, R.K. Sahoo, S.K. Behera
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