The heat dissipation and thermal performance of ventilated brake discs strongly
depends on the aerodynamic characteristics of the air flow through the rotor
passages. In this thesis, the thermal convection is analyzed using an analytical
method, and the velocity distribution, temperature contours and Nusselt number are
determined. Then numerical models for different rotors, pillar post rotors and vane
rotors are generated and numerical simulations are conducted to determine the
desired parameters. To analyze more realistic vane and pillar post rotor models,
commercial CFD software packages, Fluent and Gambit, are used to simulate the
heat flux rate, air flow rate, velocity distributions, temperature contours, and
pressure distributions inside the rotors. Furthermore, sensitivity studies have been
performed, to determine the effects of a different number of vanes or pillar posts,
inner and outer radii and various angles of vanes. To automate the tedious and
repetitive design process of the disc rotor, a design synthesis framework, iSIGHT,
is used to integrate the geometrical modeling using GAMBIT and numerical
simulations based on FLUENT. Through this integrated design synthesis process,
the disc rotor geometrical optimization is performed using design of experiment
studies. / UOIT
| Identifer | oai:union.ndltd.org:LACETR/oai:collectionscanada.gc.ca:OOSHDU.10155/15 |
| Date | 01 July 2008 |
| Creators | Chi, Zhongzhe |
| Contributors | He, Yuping, Naterer, Greg |
| Source Sets | Library and Archives Canada ETDs Repository / Centre d'archives des thèses électroniques de Bibliothèque et Archives Canada |
| Language | English |
| Detected Language | English |
| Type | Thesis |
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