Numerical Study on Fluid Flow and Heat Transfer Characteristics of a Ventilated Brake Disc Connected to a Wheel

Lee, Byung Ju; Chung, Jin Taek; Jung, Youngmee; Kim, Honglae; Lee, Seungpyo; Kim, Hee-Yeol

doi:10.4271/2018-01-1878

Cited by 1 publication

(3 citation statements)

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“…In this way, Figures 8 and 9 show the heat flow behavior and the airspeed of the fivedisc brakes, respectively, using the student version of ANSYS FEA software, which was measured in two time intervals of 0 and 120 s [13]. The mechanical, physical, and thermal The disc brake will reach an ambient temperature of 33 • C in around 30 min after being subjected to the different temperatures on the surface of the braking track during the friction process between the disc and the pad.…”

Section: Cfd Results Of Temperature and Fluid Speed Behaviormentioning

confidence: 99%

“…In this way, Figures 8 and 9 show the heat flow behavior and the airspeed of the five-disc brakes, respectively, using the student version of ANSYS FEA software, which was measured in two time intervals of 0 and 120 s [13]. The mechanical, physical, and thermal properties of lamellar graphite nodular gray cast iron are presented in Table 1.…”

Section: Cfd Results Of Temperature and Fluid Speed Behaviormentioning

confidence: 99%

“…Lee et al [13] numerically analyzed the fluid flow and heat transfer characteristics of ventilated disc brakes under real conditions. Due to higher heat dissipation compared to drum brake or solid brake discs; the results showed that when the incoming cooling air collides with the ventilation blades the airflow is deflected due to the Coriolis force.…”

Section: Introductionmentioning

confidence: 99%

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Numerical Study of Heat Transfer and Speed Air Flow on Performance of an Auto-Ventilated Disc Brake

León

García

Camperos

2021

Fluids

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In the braking system, the heat dissipation generated by the friction between the disc and pad should be evacuated as quickly as possible. In this work, five common different automotive disc brakes were studied through mathematical theories of heat transfer and numerical methods using the ANSYS software. In addition, a direct comparison between experimental, theoretical, and simulation values found in the open literature was performed to propose a disc brake with an improved geometry in terms of dissipation of heat transfer. The numerical results were considered to propose two possible solutions of disc brake geometries using N-38 ventilation blades used in aeronautic engineering. An improvement in temperature dissipation was achieved by approximately 23.8% compared to the five geometries analyzed with a simple type N-38 ventilation blade. The heat dissipation in the brakes strongly depends on the geometry of the disc, the geometry of the blades, the material from which it is manufactured, the material of the pad, the weight of the vehicle, and the operating conditions, as can be verified with mathematical calculations and experiments. The results obtained demonstrate that the discs can be used effectively in extreme working conditions (80 km/h and 33°C), without affecting the safety of the occupants and the braking system.

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Section: Cfd Results Of Temperature and Fluid Speed Behaviormentioning

confidence: 99%

Section: Cfd Results Of Temperature and Fluid Speed Behaviormentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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