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Axial compressor
About: Axial compressor is a research topic. Over the lifetime, 12035 publications have been published within this topic receiving 127766 citations.
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TL;DR: In this article, a new class of analytical solutions of the Navier-Stokes equations was developed to predict and control complex swirling flows, which allow a clear understanding of how different control parameters affect the flow and guide selection of optimal parameter values for desired flow features.
Abstract: In this paper we develop a new class of analytical solutions of the Navier–Stokes equations and suggest ways to predict and control complex swirling flows. We consider vortex sinks on curved axisymmetric surfaces with an axial flow and obtain a five-parameter solution family that describes a large variety of flow patterns and models fluid motion in a cylindrical can, whirlpools, tornadoes, and cosmic swirling jets. The singularity of these solutions on the flow axis is removed by matching them with swirling jets. The resulting composite solutions describe flows, consisting of up to seven separation regions (recirculatory “bubbles” and vortex rings), and model flows in the Ranque–Hilsch tube, in the meniscus of electrosprays, in vortex breakdown, and in an industrial vortex burner. The analytical solutions allow a clear understanding of how different control parameters affect the flow and guide selection of optimal parameter values for desired flow features. The approach permits extension to swirling flows...
34 citations
Patent•
18 Jun 1982
TL;DR: In this paper, a closed Rankine-cycle power plant has a boiler (24) for vaporizing an organic working fluid and a first nozzle box (58) for receiving vaporized working fluid from the boiler and furnishing the fluid to a set of axial flow turbine blades (30) located on the periphery of a turbine rotor.
Abstract: A closed Rankine-cycle power plant (10) has a boiler (24) for vaporizing an organic working fluid and a first nozzle box (58) for receiving vaporized working fluid from the boiler (24) and for furnishing the fluid to a set of axial flow turbine blades (30) located on the periphery of a turbine rotor (50). The vaporized working fluid from the nozzle box (58) expands on passing through the blades (30) producing work that drives a generator (34) coupled to the turbine (28). A second nozzle box (62) receives vaporized working fluid that exits from the axial flow blades (30) on the rotor (50) and applies the working fluid to a second set of radial flow blades (66) on the rotor (50) adjacent the second nozzle box (62). Working fluid from the boiler (24) is applied directly to the first nozzle box (58), and in a selective, controlled manner, through a proportioning valve (26), working fluid from the boiler (24) is applied to the second nozzle box (62) thereby providing an efficient way to vary the work output of the turbine (28).
34 citations
Patent•
27 Jan 2006
TL;DR: In this paper, a method and an apparatus for simulating the operation of a pressured air source or sink such as a compressor or a turbine for a vehicle internal combustion engine calculates momentum sources at interfaces in the compressor or the turbine.
Abstract: A method and an apparatus for simulating the operation of a pressured air source or sink such as a compressor or a turbine for a vehicle internal combustion engine calculates momentum sources at interfaces in the compressor or the turbine. A model stores steady state values of mass flux and enthalpy change related to rotational speed, inlet pressure and temperature and outlet pressure. The simulation can be an input to an engine control module for controlling the operation of the vehicle engine connected with the compressor or turbine.
34 citations
TL;DR: In this paper, the effect of running a fan in conjunction with a radiator matrix has been investigated and the nature and magnitude of the possible noise-producing mechanisms are discussed in the light of the above tests and also of results and theories published elsewhere.
34 citations