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Keywords: phonon
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Journal Articles
Journal Articles
Article Type: Technical Briefs
J. Heat Transfer. November 2011, 133(11): 114502.
Published Online: September 20, 2011
...Zhen Huang; Jayathi Y. Murthy; Timothy S. Fisher In this work, the atomistic Green’s function method is extended to compute transmission functions for each phonon polarization. The eigenvectors and eigenvalues of the overall density of states matrices are manipulated to yield a density of states...
Journal Articles
Journal Articles
Article Type: Technical Briefs
J. Heat Transfer. July 2011, 133(7): 074501.
Published Online: April 4, 2011
... conductance is driven by the phononic scattering mechanisms of the materials comprising the interface as opposed to the heat capacities of those materials. The model developed in this work assumes that a phonon on one side of an interface may not scatter at the interface itself but instead scatter...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. September 2008, 130(9): 092402.
Published Online: July 10, 2008
...Rodrigo A. Escobar; Cristina H. Amon Numerical simulations of time-dependent thermal energy transport in semiconductor thin films are performed using the lattice Boltzmann method applied to phonon transport. The discrete lattice Boltzmann Method is derived from the continuous Boltzmann transport...
Journal Articles
Article Type: Technical Papers
J. Heat Transfer. June 2007, 129(6): 705–716.
Published Online: September 15, 2006
... length, varying from about 10 W∕m to 375 W∕m K depending on the various simulation conditions. Phonon decay times on the order of hundreds of fs are computed. These times increase linearly with length, indicating ballistic transport in the nanotubes. A simple estimate of speed of sound, which does...