Wake-blade interaction in steam turbine stages

Świrydczuk, J.

doi:10.2478/pomr-2013-0014

Cited by 2 publications

(2 citation statements)

References 16 publications

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“…Further behaviour of the stator and rotor wakes can be observed in Fig. 4 being a compilation of the results presented in [23][24][25][26][27]. All wakes leave the rotor moving, generally, in the direction of the main flow velocity w 2 .…”

Section: Wake Deformation and Physical Nature Of Clockingmentioning

confidence: 83%

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Clocking In Turbines: Remarks On Physical Nature And Geometric Requirements

Świrydczuk

2015

Polish Maritime Research

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The article discusses two issues relating to the clocking phenomenon in turbines, which are the physical course of stator wake deformation in rotor passages and its further interaction with downstream stator blades, and turbine geometry parameters which are believed to be most favourable for clocking. In both cases, the results presented in the article have made it possible to verify and reformulate the previously accepted opinions.

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Section: Wake Deformation and Physical Nature Of Clockingmentioning

confidence: 83%

“…The process of stator wake deformation in rotor passages was also studied by Swirydczuk [26,27] who used for this purpose a model of potential flow with vortex singularities representing stator and rotor wakes. Figure 3 shows an instantaneous pattern of stator and rotor wake vortices.…”

Section: Wake Deformation and Physical Nature Of Clockingmentioning

confidence: 99%

Clocking In Turbines: Remarks On Physical Nature And Geometric Requirements

Świrydczuk

2015

Polish Maritime Research

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Numerical and experimental investigations on a bladeless turbine: Tesla's cohesion-type innovation

Sivaramakrishnaiah,

Nasan,

Sharma

et al. 2023

Int. J. Renew. Energy Dev.

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The design, numerical simulation, manufacturing, and physical experimentation of Tesla's bladeless centripetal turbine for electrical power production are the topics of this research project. The turbine generates rotational motion in the discs by directing pressurized air and water tangentially across parallel smooth disc surfaces. The fluid speed parameter at the nozzle inlet determines the power generated. To ensure optimal mechanical design parameters, SolidWorks design software, fluid dynamics concepts, and machine element design were employed. The numerical simulation software ANSYS CFX was used. The numerical and qualitative findings of the models and physical experiments coincided well. The study revealed that the power production and turbine efficiency were regulated by the input sources and blade size. Variations in the fluid composition between the discs may additionally have an impact on the outcomes. The researchers investigated the connection between input fluid pressure and turbine efficiency, as well as the number of discs and turbine power. The prototype could generate 76.52 W of electricity at 50 bar pressure and 1.01e+05 Reynolds number. The operation was efficiently simulated using CFD, with only a 9.3% difference between experimental and simulated results. Overall, this research provides an in-depth assessment of Tesla's bladeless centripetal turbine. It verifies the design and numerical simulation methodologies used, as well as identifies the essential aspects impacting turbine performance and efficiency. The findings contribute to a better understanding of the turbine's behavior and give ideas for improving its performance.

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Wake-blade interaction in steam turbine stages

Abstract: ABSTRACT

Cited by 2 publications

References 16 publications

Clocking In Turbines: Remarks On Physical Nature And Geometric Requirements

Clocking In Turbines: Remarks On Physical Nature And Geometric Requirements

Numerical and experimental investigations on a bladeless turbine: Tesla's cohesion-type innovation

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