Wave energy in white dwarf atmospheres. I - Magnetohydrodynamic energy spectra for homogeneous DB and layered DA stars

1987 ◽  
Vol 322 ◽  
pp. 234 ◽  
Author(s):  
Zdzislaw E. Musielak
Keyword(s):  
Wave Energy ◽  
White Dwarf ◽  
Energy Spectra

Approximate non-relativistic s-wave energy spectra with non-polynomial potentials within the framework of the WKB approximation

2021 ◽  
Author(s):  
E. Omugbe ◽  
O. E. Osafile ◽  
E. A. Enaibe ◽  
M. C. Onyeaju ◽  
E. Akpata
Keyword(s):  
Wave Energy ◽  
Wkb Approximation ◽  
Energy Spectra ◽  
S Wave ◽  
Polynomial Potentials

The Effect of Wave Energy Spectra on Wave Run-Up

1969 ◽  
Author(s):  
J. H. van Oorschot ◽  
K. d'Angremond
Keyword(s):  
Wave Energy ◽  
Energy Spectra ◽  
Run Up

scholarly journals THE EFFECT OF WAVE ENERGY SPECTRA ON WAVE RUN-UP

1968 ◽  
Vol 1 (11) ◽  
pp. 57 ◽  
Author(s):  
J.H. Van Oorschot ◽  
K. D'Angremond
Keyword(s):  
Energy Spectrum ◽  
Wave Energy ◽  
Irregular Waves ◽  
Energy Spectra ◽  
Wave Spectra ◽  
Hydraulic Actuators ◽  
Wave Generator ◽  
Run Up ◽  
Hydraulics Laboratory ◽  
Monochromatic Waves

Previous investigations carried out "by the Delft Hydraulics laboratory have shown the necessity of applying irregular waves m studies on wave run-up. The installation of a wave generator driven "by hydraulic actuators has created the possibility of producing irregular waves with arbitrary wave spectra. Investigations performed with this type of wave generator show the influence of the shape of the energy spectrum on the wave run-up on smooth straight slopes of 1:4 and 1:6. The results are compared with run-up figures derived from experiments with wind generated waves and with monochromatic waves.

scholarly journals Predicting Large Ocean Wave Events Characterized by Bimodal Energy Spectra in the Presence of a Low-Level Southerly Wind Feature

2018 ◽  
Vol 33 (2) ◽  
pp. 479-499 ◽  
Author(s):  
Ashley Ellenson ◽  
H. Tuba Özkan-Haller
Keyword(s):  
Time Series ◽  
Wave Energy ◽  
Energy Spectra ◽  
Atmospheric Conditions ◽  
Wave Direction ◽  
Large Wave ◽  
Southerly Wind ◽  
Model Configuration ◽  
Bulk Parameters ◽  
Bulk Parameter

Abstract Three large wave events are simulated with WaveWatch III using different wind inputs and physics packages. The modeled output, including spectral shape and bulk parameter time series, are compared with National Data Buoy Center buoy observations offshore of Newport, Oregon. The atmospheric conditions that generate these large waves include a strong southerly wind along with a distant cyclone. The energetic contributions of these simultaneously occurring atmospheric features result in a wave field characterized by bimodal energy spectra for two events and unimodal energy spectra for the third event. The analysis of model output evaluates bulk parameter time series of significant wave height, mean period, and mean wave direction derived from partitioned energy spectra. A consistent underestimation in wave energy approaching from the southwestern direction is found for the output associated with all model configurations. This wave energy is generated by the southerly wind. An overestimation in swell energy approaching from the northwest is also found for all model configurations. The model configuration that most accurately reproduces the southerly wave energy results in the best performance for the overall bulk parameters.

Hindcast of Deep-Water Wave Energy Spectra for Hurricane Audrey of 1957

1973 ◽  
Author(s):  
Basil W. Wilson ◽  
Subrata K. Chakrabarti ◽  
Peter H. Feldhausen
Keyword(s):  
Deep Water ◽  
Wave Energy ◽  
Water Wave ◽  
Energy Spectra ◽  
Deep Water Wave

scholarly journals Identification of Swell in Nearshore Surface Wave Energy Spectra

2010 ◽  
Vol 1 (2) ◽  
pp. 51-66 ◽  
Author(s):  
Paul A. Work ◽  
Chatchawin Srisuwan
Keyword(s):  
Surface Wave ◽  
Wave Energy ◽  
Energy Spectra

Global Wave Data Assimilation Model using Optimal Interpolation Method

2020 ◽  
Author(s):  
Kyeong Ok Kim ◽  
Hanna Kim ◽  
Kyung Tae Jung ◽  
Young Ho Kim
Keyword(s):  
Data Assimilation ◽  
Wave Energy ◽  
Interpolation Method ◽  
Energy Spectra ◽  
Global Ocean ◽  
Optimal Interpolation ◽  
Significant Wave ◽  
Wave Data ◽  
Wave Heights ◽  
Significant Wave Heights

<p>To construct a reanalyzed global ocean wave data set with improved accuracy, which is important for the better understanding and simulation of various near-surface ocean dynamics, a data assimilation method has been embedded to the global spectral wave model based on WW3. The major factors controlling the wave simulation accuracy are the wind condition and the parameterization on the wave energy development, dissipation and nonlinear processes between wave components. However, the atmospheric prediction accuracy is still not sufficient, and the parameterization cannot be generalized due to the local geographic conditions.</p><p>In detail, the data assimilation using the optimal interpolation method has been applied, verification through the comparison with satellite altimeters and buoy observations has been made with examination of the data assimilation effects. The significant wave heights computed by the integration of wave energy spectra are showed to be quite similar with observed results. However, the wave periods and directions related to the shape of wave energy spectra are not sufficiently comparable. Generally there have been difficulties in predicting the propagation of long period waves such as swells.</p><p>The wave energy spectra on wave number and direction domains was multiplied by optimal interpolation method with the ratio of observed significant wave heights on first guessed simulated results. The energy spectra was thereafter shifted by the difference between simulated and observed peak wave periods and directions. From then examination of the reanalysis simulation during 1 year, it could be seen that the accuracy of the model with the data assimilation shows better results than that without data assimilation.</p>

On the Generation of Flux‐Tube Waves in Stellar Convection Zones. III. Longitudinal Tube Wave‐Energy Spectra and Fluxes for Late‐Type Stars

2000 ◽  
Vol 541 (1) ◽  
pp. 410-417 ◽  
Author(s):  
Z. E. Musielak ◽  
R. Rosner ◽  
P. Ulmschneider
Keyword(s):  
Flux Tube ◽  
Wave Energy ◽  
Energy Spectra ◽  
Late Type ◽  
Stellar Convection ◽  
Tube Wave
Sign in / Sign up

Export Citation Format

Share Document