National Repository of Grey Literature 2 records found  Search took 0.01 seconds. 
Analysis of ventilation effect of radial channels in the rotor of electrical machines
Kratochvílová, Hana ; Marcián, Petr (referee) ; Vlach, Radek (advisor)
This thesis deals with the determination of a ventilation effect of the radial channel, that is used in a rotor of an electrical motor. CFD simulations of the channel are done in Ansys CFX software. The first chapter explains the basic theory of fans, flow, thermomechanics, CFD and structural effects of rotation on the channel. The second chapter focuses on the determination of the fan curve, the power curve, and the efficiency curve. Different types of turbulence and fluid compressibility models are used for simulations and their influence on the result is evaluated. The third part evaluates the design of the radial channel from a structural point of view.
Analysis of ventilation effect of radial channels in the rotor of electrical machines
Kratochvílová, Hana ; Marcián, Petr (referee) ; Vlach, Radek (advisor)
This thesis deals with the determination of a ventilation effect of the radial channel, that is used in a rotor of an electrical motor. CFD simulations of the channel are done in Ansys CFX software. The first chapter explains the basic theory of fans, flow, thermomechanics, CFD and structural effects of rotation on the channel. The second chapter focuses on the determination of the fan curve, the power curve, and the efficiency curve. Different types of turbulence and fluid compressibility models are used for simulations and their influence on the result is evaluated. The third part evaluates the design of the radial channel from a structural point of view.

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