Abstract
The generation and transmission of planar, thermoacoustic (TAC) waves by the heating of a quiescent, isothermal, semi-infinite, gaseous medium's boundary is investigated theoretically. For step and gradual changes in the boundary temperature of a Pr = 3 4 gas, long- and short-time asymptotes are derived for the pressure, velocity and temperature fields and for the wall heat flux. Then the method of Laplace transform with numerical inversion is used to solve the linearized equations for general wall heating conditions. By comparing the Laplace transform predictions with the asymptotic results and with experimental data, the numerical scheme is verified and found to be highly accurate. Finally, the nonlinear equations are solved numerically to assess their effect on wave characteristics and to determine the conditions under which the linear approximation is adequate.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.