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An alternative approach to efficient simulation of micro/nanoscale phonon transport

Author(s)
Peraud, Jean-Philippe Michel; Hadjiconstantinou, Nicolas
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Abstract
Starting from the recently proposed energy-based deviational formulation for solving the Boltzmann equation [J.-P. Péraud and N. G. Hadjiconstantinou, Phys. Rev. B 84, 205331 (2011)], which provides significant computational speedup compared to standard Monte Carlo methods for small deviations from equilibrium, we show that additional computational benefits are possible in the limit that the governing equation can be linearized. The proposed method exploits the observation that under linearized conditions (small temperature differences) the trajectories of individual deviational particles can be decoupled and thus simulated independently; this leads to a particularly simple and efficient algorithm for simulating steady and transient problems in arbitrary three-dimensional geometries, without introducing any additional approximation.
Date issued
2012-10
URI
http://hdl.handle.net/1721.1/78562
Department
Massachusetts Institute of Technology. Department of Mechanical Engineering; Massachusetts Institute of Technology. School of Engineering
Journal
Applied Physics Letters
Publisher
American Institute of Physics (AIP)
Citation
Péraud, Jean-Philippe M., and Nicolas G. Hadjiconstantinou. “An Alternative Approach to Efficient Simulation of Micro/nanoscale Phonon Transport.” Applied Physics Letters 101.15 (2012): 153114. © 2012 American Institute of Physics
Version: Final published version
ISSN
0003-6951
1077-3118

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