The air flow is used to cool the brake discs. Manufacturers of friction units equip a metal friction element of the unit with a ventilation device, assuming that it will intensively remove heat from heated surfaces. Macroparameters characterizing the efficiency of the brake disc ventilation apparatus are widely given in the studies of scientists from different countries. The speed and volume of air masses directly affect the amount of heat removed from heated surfaces. Surface parameters also affect the heat transfer process. Unfortunately, there are so few works devoted to the processes in the boundary layer of the air flow that directly affect the heat transfer from the surfaces of the ventilation apparatus. In a wide range of literary sources, the boundary layer has a heat-insulating effect, with an indistinctly expressed condition of movement and energy transfer.
Parametric Analysis of the Boundary Layer of the Air Flow of the Ventilation Duct of the Brake Disc
Lect.Notes Mechanical Engineering
2021-11-02
12 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch