지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2014.2
- 수록면
- 15 - 20 (6page)
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초록· 키워드
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A more accurate expression for effective viscosity is obtained using a linear regression of the data from Fukui-Kaneko’s model, which are obtained through numerical calculations based on the linearized Boltzmann equation. Veijola and Turowski’s expression is adopted as a base function for effective viscosity. The four coefficients in that equation are optimized, and sensitivity analysis is conducted for these coefficients. The results show that the coefficient for the first-order Knudsen number is the most accurate, whereas the coefficient in the exponential of the Knudsen number is the least accurate compared with Fukui-Kaneko’s results. The expression for effective viscosity is accurate within 0.02% rms of Fukui-Kaneko’s results for the inverse Knudsen numbers from 0.01 to 100 and surface accommodation coefficients ranging from 0.7 to 1.
목차
Abstract
1. 서론
2. 유효 점도(Effective Viscosity)
3. 다중선형회귀분석
4. 유효 점도 표현 계수의 민감도 해석
5. 레이놀즈 방정식 응용
6. 결론
References
참고문헌 (7)
참고문헌 신청
Fukui, S / 1988 / Analysis of Ultra-Thin Gas Film Lubrication Based on Linearized Boltzmann Equation: First Report-Derivation of a Generalized Lubrication Equation Including Thermal Creep Flow / ASME J. Tribol 110:335~341
Shen, S / 2007 / A kinetic-theory based first order slip boundary condition for gas flow / Phys. Fluids 19:086101
Dongari, N / 2010 / Predicting microscale gas flows and rarefaction effects through extended Navier-Stokes-Fourier equations from phoretic transport considerations / Microfluid Nanofluid 9:831~846
Burgdorfer, A / 1959 / The Influence of the Molecular Mean Free Path on the Performance of Hydrodynamic Gas Lubricated Bearings / ASME J. Basic Eng 81:94~100
Hsia, Y / 1983 / An Experimental Investigation of Molecular Rarefaction Effects in Gas Lubricated Bearings at Ultra-Low Clearance / ASME J. Tribol 105:120~130
Shen, S / 2007 / A kinetic-theory based first order slip boundary condition for gas flow / Phys. Fluids 19:086101
Dongari, N / 2010 / Predicting microscale gas flows and rarefaction effects through extended Navier-Stokes-Fourier equations from phoretic transport considerations / Microfluid Nanofluid 9:831~846
Burgdorfer, A / 1959 / The Influence of the Molecular Mean Free Path on the Performance of Hydrodynamic Gas Lubricated Bearings / ASME J. Basic Eng 81:94~100
Hsia, Y / 1983 / An Experimental Investigation of Molecular Rarefaction Effects in Gas Lubricated Bearings at Ultra-Low Clearance / ASME J. Tribol 105:120~130
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