Location
Weber State University
Start Date
5-8-2017 9:22 AM
End Date
5-8-2017 12:00 AM
Description
Internal waves are formed in stably stratified fluids where the natural frequency (N) of the fluid is greater than the excitation frequency (ω). If N < &omega, only evanescent waves form. Evanescent waves, which decay at an exponential rate, can become propagating internal waves if N increases above ω. Experiments were performed to investigate the effects of topography shape, distance between the topography and the turning depth (where N = ω), and the strength of the stratification as measured by the Froude number in both the evanescent and propagating regions. It was found that internal waves with the highest kinetic energy were generated by the medium Gaussian and that decreasing the distance between topography and the turning depth increased the kinetic energy over the entire range of tested values and topographical shapes. However, Frevan was a strong influence on kinetic energy for only a portion of the tested values.
Included in
Internal Wave Generation in the Presence of a Turning Depth
Weber State University
Internal waves are formed in stably stratified fluids where the natural frequency (N) of the fluid is greater than the excitation frequency (ω). If N < &omega, only evanescent waves form. Evanescent waves, which decay at an exponential rate, can become propagating internal waves if N increases above ω. Experiments were performed to investigate the effects of topography shape, distance between the topography and the turning depth (where N = ω), and the strength of the stratification as measured by the Froude number in both the evanescent and propagating regions. It was found that internal waves with the highest kinetic energy were generated by the medium Gaussian and that decreasing the distance between topography and the turning depth increased the kinetic energy over the entire range of tested values and topographical shapes. However, Frevan was a strong influence on kinetic energy for only a portion of the tested values.