A New Gravity Wave Parameterization Including Three-Dimensional Propagation

Gravity wave propagation in the realistic atmosphere based on a three-dimensional transfer function model

In order to study the filter effect of the background winds on the propagation of gravity waves, a threedimensional transfer function model is developed on the basis of the complex dispersion relation of internal gravity waves in a stratified dissipative atmosphere with background winds. Our model has successfully represented the main results of the ray tracing method, e.g. the trend of the gra...

SiD2 using three-dimensional wave packet propagation

Dissociations after the à B1→ B̃ A1 photoexcitation of SiH2, SiHD, and SiD2 were studied to investigate excited-state dynamics and effects of the initial vibrational state. The cross section for the photodissociation relative to SiH2 B̃ →Si D +H2 and the rovibrational population of the H2 fragment were computed using the wave packet propagation technique based on the three-dimensional potential e...

Three-dimensional Instability of Internal Gravity Wave Beams

Takeshi Kataoka and T. R. Akylas Department of Mechanical Engineering, Massachusetts Institute of Technology [email protected] Abstract The stability of isolated and interacting internal gravity wave beams to three-dimensional perturbations is studied, based on the beam–mean-flow interaction equations derived in Kataoka and Akylas (2015). These two-dimensional states are found to be unstable as ...

Three-dimensional wave propagation through single crystal solid–liquid interfaces

Large differences in the ultrasonic velocity of the solid and liquid phases of semiconductors have stimulated an interest in the use of laser ultrasonic methods for locating and characterizing solid– liquid interfaces during single crystal growth. A previously developed two-dimensional ray tracing analysis has been generalized and used to investigate three-dimensional ultrasonic propagation acr...

Frozen Gaussian approximation for three-dimensional seismic wave propagation