Results 181 to 190 of about 198,480 (259)
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Symposium (International) on Combustion, 1963
No definitive experimental work has been done with condensation via homogeneous nucleation and very little work apparently has been done with condensation in nozzle flow, where the complications of a dynamic system are added. A review is given of the theories of homogeneous nucleation and of growth during condensation from the vapor phase.
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No definitive experimental work has been done with condensation via homogeneous nucleation and very little work apparently has been done with condensation in nozzle flow, where the complications of a dynamic system are added. A review is given of the theories of homogeneous nucleation and of growth during condensation from the vapor phase.
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Fuel, 2018
Cavitation is quite important for the diesel spray atomization and the combustion of air–fuel mixture. In this study, a high-speed CMOS camera equipped with a long-distance microscope was utilized to capture the transient cavitating flow and spray ...
Zhou Chen +6 more
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Cavitation is quite important for the diesel spray atomization and the combustion of air–fuel mixture. In this study, a high-speed CMOS camera equipped with a long-distance microscope was utilized to capture the transient cavitating flow and spray ...
Zhou Chen +6 more
semanticscholar +1 more source
Nozzle Damping of the Fluidic Nozzle
2019For a thrust-adjustable rocket motor, to avoid unstable combustion, we not only need to consider nozzle damping before thrust adjustment, but also need to consider nozzle damping variation thereafter, and it is important to learn about the influence of nozzle damping before, and after, thrust adjustment.
Kan Xie, Xinmin Chen, Junwei Li, Yu Liu
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Investigation of Nozzle Shape, Number of Nozzles and Nozzle Inclination Angle and Its Optimization
Tuijin Jishu/Journal of Propulsion Technology, 2023A pressure vessel is a container that holds gases or liquids at a pressure significantly different from the ambient pressure. The nozzles were essential for inlet and outlet of liquid. A pressure vessel analysis is critical for its proper operation.
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Optical diagnostics and optimization of the gas-powder flow in the nozzles for laser cladding
Optics and Laser Technology, 2018The results of investigation of gas and gas-powder flows in various cladding nozzles are presented and discussed. Schlieren-imaging, high-speed imaging and laser Doppler anemometry were used for optical diagnostics of the flows.
K. Nagulin +3 more
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Flow phenomena in advanced rocket nozzles - The plug nozzle
34th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit, 1998In recent years, plug nozzles have gained a renewed interest in space business. In principle, this nozzle concept offers a continuous altitude adaptation up to its design pressure ratio. But, the flow adaptation achieved with this advanced rocket nozzle concept induces shocks and expansion waves resulting in exit profiles far away from idealized one ...
Hagemann, G., Immich, H., Terhardt, M.
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Nozzles: Nozzle-less Devices Defined
Journal of the American Rocket Society, 1945This is a complicated, but exact way of saying that any channel (converge n t divergent, straight or convergentdivergent) through which fluids expand to convert their heat or pressure energy into velocity in a given direction is a nozzle. Since the mass of gas is given a velocity at the expense of its heat or pressure energy, it is seen that the heat ...
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Journal of Propulsion and Power, 1998
Several nozzle concepts that promise a gain in performance over existing conventional nozzles are discussed in this paper. It is shown that signie cant performance gains result from the adaptation of the exhaust e ow to the ambient pressure. Special attention is then given to altitude-adaptive nozzle concepts, which have recently received new interest ...
Hagemann, G. +3 more
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Several nozzle concepts that promise a gain in performance over existing conventional nozzles are discussed in this paper. It is shown that signie cant performance gains result from the adaptation of the exhaust e ow to the ambient pressure. Special attention is then given to altitude-adaptive nozzle concepts, which have recently received new interest ...
Hagemann, G. +3 more
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The TICTOP nozzle: a new nozzle contouring concept
CEAS Space Journal, 2016Currently, mainly two types of nozzle contouring methods are applied in space propulsion: the truncated ideal contour (TIC) and the thrust-optimized parabola (TOP). This article presents a new nozzle contouring method called TICTOP, combining elements of TIC and TOP design.
Manuel Frey +2 more
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