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Vortical structures with cavitating core
Švaňhal, Radek ; Štigler, Jaroslav (referee) ; Rudolf, Pavel (advisor)
The master's thesis focuses on vortical structures with cavitating core, which might develop in Francis turbines at non-optimal discharges in a form of unstable vortex cord. The cavitating vortex core is to be generated in a lab by flow rotation and a convergent nozzle. The objective of this thesis is to compare experimental results with mathematical model of pressure drop in vortical flow and with numerical calculation in Fluent based on finite volumes method. Other objective is to messure high frequency pressure vibrations generated by cavitating vortex core and spectrally analyze the data.
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Using SolidWorks for model preparation in CFD
Švaňhal, Radek ; Klas, Roman (referee) ; Rudolf, Pavel (advisor)
This bachelor’s thesis objective is to analyze utilization of program SolidWorks for preparing CFD (Computational Fluid Dynamics) models. First part describes the process of modelling a finite volume of a Francis turbine rotor. Also, the most useful functions and modelling procedures are presented. Second part analyzes pros and cons of using SolidWorks for CFD model preparation. In the last part the model is imported to pre-processor Gambit where meshing tools and procedures are introduced. In conclusion the thesis summarizes the main benefits of using a stand-alone specialized CAD software for CFD modelling.
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Vortical structures with cavitating core
Švaňhal, Radek ; Štigler, Jaroslav (referee) ; Rudolf, Pavel (advisor)
The master's thesis focuses on vortical structures with cavitating core, which might develop in Francis turbines at non-optimal discharges in a form of unstable vortex cord. The cavitating vortex core is to be generated in a lab by flow rotation and a convergent nozzle. The objective of this thesis is to compare experimental results with mathematical model of pressure drop in vortical flow and with numerical calculation in Fluent based on finite volumes method. Other objective is to messure high frequency pressure vibrations generated by cavitating vortex core and spectrally analyze the data.
|
|
|
Using SolidWorks for model preparation in CFD
Švaňhal, Radek ; Klas, Roman (referee) ; Rudolf, Pavel (advisor)
This bachelor’s thesis objective is to analyze utilization of program SolidWorks for preparing CFD (Computational Fluid Dynamics) models. First part describes the process of modelling a finite volume of a Francis turbine rotor. Also, the most useful functions and modelling procedures are presented. Second part analyzes pros and cons of using SolidWorks for CFD model preparation. In the last part the model is imported to pre-processor Gambit where meshing tools and procedures are introduced. In conclusion the thesis summarizes the main benefits of using a stand-alone specialized CAD software for CFD modelling.
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