热整流现象是近年来在纳米系统中发现的一种特殊热传导现象,具有重要的应用前景,但是缺乏明确的物理解释和宏观物理图像.本文基于热质理论将导热过程与流体力学相类比,论证了热质运动的空间惯性力可以导致非对称导热介质中的热整流现象,并举例分析了硅纳米薄膜中的热整流效应.热质理论预测的热整流系数可达40％,足以满足构建热晶体管或者逻辑门的需求.
参考文献
| [1] | Chang CW;Okawa D;Majumdar A;Zettl A .Solid-state thermal rectifier[J].Science,2006(5802):1121-1124. |
| [2] | Wang L;Li B .Thermal logic gates: Computation with phonons[J].Physical review letters,2007(17):177208-1-177208-4-0. |
| [3] | Criado-Sancho, M.;Del Castillo, L.F.;Casas-Vázquez, J.;Jou, D. .Theoretical analysis of thermal rectification in a bulk Si/nanoporous Si device[J].Physics Letters, A,2012(19):1641-1644. |
| [4] | Groisman A.;Quake SR. .A microfluidic rectifier: Anisotropic flow resistance at low Reynolds numbers - art. no. 094501[J].Physical review letters,2004(9):4501-0. |
| [5] | Yang KS.;Chen IY.;Shew BY.;Wang CC. .Investigation of the flow characteristics within a micronozzle/diffuser[J].Journal of Micromechanics and Microengineering,2004(1):26-31. |
| [6] | Bing-Yang Cao;Zeng-Yuan Guo .Equation of motion of a phonon gas and non-Fourier heat conduction[J].Journal of Applied Physics,2007(5):053503-1-053503-6-0. |
| [7] | Hai-Dong Wang;Bing-Yang Cao;Zeng-Yuan Guo .Heat flow choking in carbon nanotubes[J].International Journal of Heat and Mass Transfer,2010(9/10):1796-1800. |
| [8] | Wang, M.;Guo, Z.-Y. .Understanding of temperature and size dependences of effective thermal conductivity of nanotubes[J].Physics Letters, A,2010(42):4312-4315. |
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