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Measurement of Local Heat Transfer Coefficients and Numerical Analysis in the Flow Passage of Disc Brake with Spirally Grooved Surfaces  

Lee, D.H. (School of Mechanical and Automotive Engineering, Inje University)
Park, S.B. (Department of Mechanical Engineering, Hanyang University)
Lim, C.Y. (Department of Mechanical Engineering, Inje University)
Kim, H.S. (School of Mechanical and Automotive Engineering, Inje University)
Lee, K.S. (Department of Mechanical Engineering, Hanyang University)
Publication Information
Transactions of the Korean Society of Automotive Engineers / v.14, no.6, 2006 , pp. 104-111 More about this Journal
Abstract
A ventilated disc brake having spirally fluted surface has been proposed to improve the thermal judder by way of heat transfer enhancement. The local heat transfer coefficients were measured in the flow passage of disc brake. These measured local heat transfer data were utilized to do the finite element numerical analysis which predicts the maximum temperatures on the disc brake. The results show that the maximum temperatures on the disc surface with spirally fluted surface are approximately 26.6% lower than those without them.
Keywords
Spirally grooved surface; Disc brake; Thermal judder; Local heat transfer coefficient; Finite element; Maximum temperature;
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