Langmuir Slip Model for Air Bearing Simulation Using the Lattice Boltzmann Method
Langmuir Slip Model for Air Bearing Simulation Using the Lattice Boltzmann Method
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DOI：
10.1109/tmag.2007.893640
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发表时间：
2007-05
影响因子：
2.1
通讯作者：
Hyung Min Kim;Dehee Kim;W. Kim;P. Chung;M. Jhon
中科院分区：
文献类型：
--
作者：
Hyung Min Kim;Dehee Kim;W. Kim;P. Chung;M. Jhon
采用格子Boltzmann方法（LBM）模拟了头盘界面空气轴承的纳米级流动物理行为。在空气轴承高努森数流动分析中，滑移边界模型对保证求解精度至关重要。在本文中，朗缪尔滑移模型的稀薄气体流动，并检查其可行性和准确性在纳米流动模拟。结果表明，我们的LBM可以解决空气轴承的流体流动与高效率，由于其复杂的几何处理能力和高精度相媲美的Boltzmann输运方程在滑移流区。本文建立的LBM模型可作为先进气浮系统设计的有力工具
The lattice Boltzmann method (LBM) is utilized to simulate the nanoscale flow physics of air bearings in the head-disk interface. In the high Knudsen number flow analysis of air bearings, the slip boundary model is very important to guarantee the accuracy of solution. In this paper, the Langmuir slip model for the rarefied gas flow was incorporated and its feasibility and accuracy was examined in nanoscale flow simulations. It was shown that our LBM can solve the fluid flow of air bearing with high efficiency due to its complex geometry handling capability and high accuracy comparable to the Boltzmann transport equation in the slip flow regime. The LBM model developed in this paper could serve as a powerful tool for the design of advanced air-bearing systems