Equivalence of Eulerian and Lagrangian phonons: Sound pressure and two-fluid equations

@incollection{citeulike:1836396, abstract = {In correspondence to the two different descriptions of hydrodynamic motion by Euler and by Lagrange, there are two natural ways of defining phonons and the corresponding classical sound waves. Eulerian phonons turn out to have a momentum nk (k = wave vector), whereas Lagrangian phonons carry no momentum. This might suggest that the two definitions lead to different physical effects. That this is not the case is shown in detailed discussions of two examples: the sound pressure and the derivation of two-fluid equations.}, author = {Thellung, A. }, citeulike-article-id = {1836396}, doi = {http://dx.doi.org/10.1007/3-540-18244-6\_41}, journal = {Physics of Phonons}, keywords = {electricity}, pages = {208--225}, posted-at = {2007-10-29 18:09:21}, priority = {2}, title = {Equivalence of Eulerian and Lagrangian phonons: Sound pressure and two-fluid equations}, url = {http://dx.doi.org/10.1007/3-540-18244-6\_41}, year = {1987} }

TY - CHAP ID - citeulike:1836396 L3 - citeulike-article-id:1836396 TI - Equivalence of Eulerian and Lagrangian phonons: Sound pressure and two-fluid equations JF - Physics of Phonons SP - 208 EP - 225 N2 - In correspondence to the two different descriptions of hydrodynamic motion by Euler and by Lagrange, there are two natural ways of defining phonons and the corresponding classical sound waves. Eulerian phonons turn out to have a momentum nk (k = wave vector), whereas Lagrangian phonons carry no momentum. This might suggest that the two definitions lead to different physical effects. That this is not the case is shown in detailed discussions of two examples: the sound pressure and the derivation of two-fluid equations. KW - electricity AU - Thellung, A PY - 1987/// UR - http://dx.doi.org/10.1007/3-540-18244-6_41 ER -