Initial-value problem for three-dimensional disturbances in a compressible boundary layer Export

@article{citeulike:1651780, abstract = {An initial-value problem is formulated for a three-dimensional wave packet in a compressible boundary layer flow. The problem is solved using a Laplace transform with respect to time and Fourier transforms with respect to the streamwise and spanwise coordinates. The solution can be presented as a sum of modes consisting of continuous and discrete spectra of temporal stability theory. Two discrete modes, known as mode S and mode F, are of interest in high-speed flows since they may be involved in a laminar-turbulent transition scenario. The continuous and discrete spectrum are analyzed numerically for a hypersonic flow with Mach number M=5.6. The following features are revealed: (1) The synchronism of mode S with acoustic waves at a streamwise wave number 0 is primarily two-dimensional; (2) at high angles of disturbance propagation, mode F is no longer synchronized with entropy and vorticity waves; (3) at high angles of disturbance propagation, the synchronism between mode S and mode F is not accompanied by a mode S instability, and at even higher angles of disturbance propagation, mode S and mode F are not synchronized. \©2005 American Institute of Physics}, author = {Forgoston, Eric and Tumin, Anatoli}, citeulike-article-id = {1651780}, citeulike-linkout-0 = {http://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=PHFLE6000017000008084106000001&idtype=cvips&gifs=yes}, citeulike-linkout-1 = {http://link.aip.org/link/?PHF/17/084106}, citeulike-linkout-2 = {http://dx.doi.org/10.1063/1.2013261}, doi = {10.1063/1.2013261}, journal = {Physics of Fluids}, keywords = {boundary\_layer, stability}, number = {8}, posted-at = {2007-09-13 13:31:18}, priority = {2}, publisher = {AIP}, title = {Initial-value problem for three-dimensional disturbances in a compressible boundary layer}, url = {http://dx.doi.org/10.1063/1.2013261}, volume = {17}, year = {2005} }

TY - JOUR ID - citeulike:1651780 L3 - citeulike-article-id:1651780 N2 - An initial-value problem is formulated for a three-dimensional wave packet in a compressible boundary layer flow. The problem is solved using a Laplace transform with respect to time and Fourier transforms with respect to the streamwise and spanwise coordinates. The solution can be presented as a sum of modes consisting of continuous and discrete spectra of temporal stability theory. Two discrete modes, known as mode S and mode F, are of interest in high-speed flows since they may be involved in a laminar-turbulent transition scenario. The continuous and discrete spectrum are analyzed numerically for a hypersonic flow with Mach number M=5.6. The following features are revealed: (1) The synchronism of mode S with acoustic waves at a streamwise wave number 0 is primarily two-dimensional; (2) at high angles of disturbance propagation, mode F is no longer synchronized with entropy and vorticity waves; (3) at high angles of disturbance propagation, the synchronism between mode S and mode F is not accompanied by a mode S instability, and at even higher angles of disturbance propagation, mode S and mode F are not synchronized. ©2005 American Institute of Physics IS - 8 JF - Physics of Fluids TI - Initial-value problem for three-dimensional disturbances in a compressible boundary layer PB - AIP VL - 17 KW - boundary_layer KW - stability AU - Forgoston, Eric AU - Tumin, Anatoli PY - 2005/// UR - http://dx.doi.org/10.1063/1.2013261 ER -