Title :
Phenomenological model of heat transfer in hard-disk air bearing based on nonlocal behavior in air
Author :
Poletkin, K. ; Kulish, V.
Author_Institution :
Sch. of Mech. & Aerosp. Eng., Nanyang Technol. Univ., Singapore, Singapore
Abstract :
In this paper, a new phenomenological model of heat transfer in hard-disk air bearing based on nonlocal behavior in air molecule is developed. Analysis of the model shows that it is a more accurate to simulate the behavior of heat transfer due to heat conduction and the viscous dissipation for Couette flow case. Since, assumption of the nonlocal behavior (in space) in air molecular, due to its scattering from the boundaries of the domain through which air flow is moved, allows us to eliminate deficiencies of continuum model, in particular, based on the temperature jump theory.
Keywords :
Couette flow; air; hard discs; heat conduction; Couette flow case; air flow; air molecule; continuum model; hard-disk air bearing; heat conduction; heat transfer; nonlocal behavior; phenomenological model; temperature jump theory; viscous dissipation; Atmospheric measurements; Equations; Gold; Heating; Mathematical model; Particle measurements; Scattering; lagging; molecular scattering; nonlocal; slide/disk air bearing;
Conference_Titel :
APMRC, 2012 Digest
Print_ISBN :
978-1-4673-4734-1
