Results 51 to 60 of about 17,991 (229)
Downdraft Devices for Negative Emissions—Quantification Study and Environmental Implication
Greenhouse Gases: Science and Technology, Volume 16, Issue 1, Page 75-89, February 2026.ABSTRACT Methane (CH4) is a potent greenhouse gas with a global warming potential far exceeding that of CO2 over short time horizons. Its removal from the atmosphere remains challenging due to its low ambient concentration and chemical stability. This study explores downdraft energy towers (DETs) as an innovative CH4 mitigation technology that enhances
Xiaokun Yao +4 more
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Transient, hypervelocity flow in an axisymmetric nozzle [PDF]
29th Aerospace Sciences Meeting, 1991 The performance of an axisymmetric nozzle was examined which was designed to produce uniform, parallel flow with a nominal Mach number of 8. A free-piston driven shock tube was used to supply the nozzle with high-temperature, high-pressure test gas. Performance was assessed by measuring Pitot pressures across the exit plane of the nozzle and, over the ...
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Recent advances in characterisation of subsonic axisymmetric nozzles [PDF]
EPJ Web of Conferences, 2018 Nozzles are devices generating jets. They are widely used in fluidics and also in active control of flows past bodies. Being practically always a component of larger system, design and optimisation of the system needs characterisation of nozzle properties by an invariant quantity.
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Enhancement of synthetic jets by means of an integrated valve-less pump Part II. Numerical and experimental studies [PDF]
, 2005 The paper studies the performance of the new fluid jet actuator based on the novel principle of the generation of fluid jet, which has been presented in [Z. Travnicek, A.I. Fedorchenko, A.-B.
Tesar, V., Travniceka, Z., Wang, A.
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Effects of Processing on the Mechanical Performance of GF‐PC Composites: A Multiscale Investigation
Polymer Composites, Volume 47, Issue 2, Page 1300-1315, 20 January 2026.From processing and interface conditions, to macro/micro scale characterization, and postmortem analysis. ABSTRACT A robust fiber‐matrix interface is crucial for any composite system, with higher challenges in thermoplastic matrices compared to thermosets (reaction in composite level).
O. Vetterli, G. A. Pappas, P. Ermanni
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Flow Feature in Supersonic Non-Isobaric Jet near the Nozzle Edge
Aerospace, 2022 Using the example of studying the supersonic underexpanded jet initial section, the issue of interpreting the experimental visualization data and Pitot pressure measurement data using the results of numerical calculations (2d RANS k-ω SST) is discussed ...
Valeriy Zapryagaev +2 more
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Three-dimensional full Euler flows in axisymmetric nozzles
Journal of Differential Equations, 2013 Abstract In this paper, we consider global subsonic compressible flows through general infinitely long nozzles. The flow is governed by the steady full Euler equations. We find a new invariant along streamline. Take advantages of this, we reformulate the full Euler system into quasilinear second order equations of stream function.
Duan, Ben, Luo, Zhen
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Entrainment characteristics of unsteady subsonic jets [PDF]
, 1979 The effectiveness of jet unsteadiness in enhancing flow entrainment was assessed. It was conducted that entrainment depends on the type and amount of jet unsteadiness.
Bremhorst, K. +2 more
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Polymer Engineering &Science, Volume 66, Issue 1, Page 105-121, January 2026.Study on transient parison formation at various strokes during extrusion of Newtonian and viscoelastic fluids. In the presence of an offset between the mandrel and the bushing, Newtonian fluids exhibit a reduction in extrudate diameter, whereas viscoelastic fluids display diameter swelling only at flow rates exceeding a critical threshold.
Kalonji K. Kabanemi +2 more
wiley +1 more source
International Journal of Aerospace Engineering, Volume 2026, Issue 1, 2026.This study is aimed at addressing combustion instability phenomena observed during the operation of dual‐burn‐rate Solid Rocket Motors (SRM) with a large aspect ratio. Previously, the acoustic mode of the combustion chamber (induced by external excitation) and the vortex shedding frequency were typically analyzed independently, and the probability of ...
Wenhao Yu +6 more
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