Results 11 to 20 of about 34,356 (208)
Applied Sciences, 2022 To investigate the effects of surface roughness on windage loss and flow characteristics in a shaft-type gap, the skin friction coefficient (Cf) and flow versus Reynolds number (Re) at different surface roughness (Ra) and radius ratio (η) values were ...
Lehao Hu +4 more
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Operational and economic analysis of a Velox-type combined heat & power plant with a throttle valve [PDF]
MATEC Web of Conferences, 2021 For many years, the Department of Power Engineering and Turbomachinery of the Silesian University of Technology has been using a small-capacity (about 500 kWe) steam-gas power plant.
Smołka Krystian +3 more
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A New Windage Loss Model for S-CO2 Turbomachinery Design
Applied Sciences, 2023 A supercritical CO2 (S-CO2) Brayton cycle is a compact and simple power conversion system with competitive efficiency. However, the strong real gas effects of S-CO2 pose challenges to the design of a cycle and its components.
Dokyu Kim +3 more
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Aerospace, 2022 The leading edge is the critical portion for a gas turbine blade and is often insufficiently cooled due to the adverse effect of Crossflow in the cooling chamber.
Qinghua Deng +3 more
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Evaluation of pressure and species concentration measurement using uncertainty propagation [PDF]
E3S Web of Conferences, 2022 This paper presents a probabilistic uncertainity evaluation method as described in the Guide to the Expression of Uncertainty in Measurements (GUM) and its application to probe measurements on pressure and fuel concentration. All sources of unceratinties
Stefopoulos Georgios +3 more
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Investigation of Thermal-Flow Characteristics of Pipes with Helical Micro-Fins of Variable Height
Energies, 2021 The results of numerical investigations of heat transfer and pressure drops in a channel with 30° helical micro-fins are presented. The main aim of the analysis is to examine the influence of the height of the micro-fins on the heat-flow characteristics ...
Piotr Bogusław Jasiński +5 more
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Time-domain harmonic balance method for aerodynamic and aeroelastic simulations of turbomachinery flows [PDF]
, 2013 A time-domain Harmonic Balance method is applied to simulate the blade row interactions and vibrations of state- of-the-art industrial turbomachinery configurations. The present harmonic balance approach is a time-integration scheme that turns a periodic
Besicovitch A.S. +5 more
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Considerations and complications with "first principles" dynamic modelling of industrial compressors
Авіаційно-космічна техніка та технологія, 2021 Readily available processing hardware and "off-the-shelf" (OTS) simulation software has made "high fidelity" first principles models of both steady and transient states, for both axial and centrifugal industrial compressors, relatively easy to construct.
James Jacoby +2 more
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Journal of Fluid Science and Technology, 2015 Control valves have been widely used in thermal and nuclear power plants to regulate the flow entering the turbine. The safety and stable operation of the turbine is threatened by the control valves' vibration and noise, which are directly related ...
Lifei ZENG +6 more
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Challenging low Reynolds - SWT blade aerodynamics
MATEC Web of Conferences, 2018 One of the main issues related to the design and development of small wind turbines (SWTs) is the low Reynolds number. Operation in the transitory regime makes the rotor aerodynamic analysis a challenging task.
Kądrowski Damian +6 more
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