Methane Bubble Escape From Gas Horizon in Muddy Aquatic Sediment Under Periodic Wave Loading

2019 ◽  
Vol 46 (12) ◽  
pp. 6507-6515 ◽  
Author(s):  
Regina Katsman
Keyword(s):  
Periodic Wave ◽  
Wave Loading ◽  
Methane Bubble ◽  
Aquatic Sediment

To Simulate the Stability of Undersea Pipeline Under Typhoon Wave Action by Numerical Analysis

2010 ◽  
Author(s):  
Lien-Kwei Chien ◽  
Wen-Chien Tseng ◽  
Sheng-Tse Chuang
Keyword(s):  
Lateral Displacement ◽  
Meteorological Data ◽  
Wave Theory ◽  
Relative Displacement ◽  
Periodic Wave ◽  
Wave Action ◽  
Western Coast ◽  
Wave Loading ◽  
Structure Damage ◽  
Typhoon Wave

When the typhoon comes, the undersea pipelines usually are caused the destory, lateral displacement and floating easily by wave loading. Therefore, the main reason of the unstable seabed may be the typhoon wave loading. This study from the ocean geotechnical viewpoint, the study area of undersea gas pipeline route from Taoyuan to Taichung in western coast of Taiwan was selected. In this study, further by using the GeoStudio QUAKE/W software program to simulate the wave laoding. The marine meteorological data including strength parameters was collected and also jointed with wave theory. At the same time, under the wave action condition, pipeline weight and embedded depth are also discussed. This study assesses the influences of the undersea pipeline stability, and the purpose is to decrease structure damage. Based on the results of theoretical calculation and numerical simulation, it can be found the undersea pipeline induced by periodic wave loading occur the relative displacement maximum up to reach about 0.93.

Methane bubble growth in fine-grained muddy aquatic sediment: Insight from modeling

2013 ◽  
Vol 377-378 ◽  
pp. 336-346 ◽  
Author(s):  
Regina Katsman ◽  
Ilia Ostrovsky ◽  
Yizhaq Makovsky
Keyword(s):  
Bubble Growth ◽  
Fine Grained ◽  
Methane Bubble ◽  
Aquatic Sediment

The effect of shock-wave loading on transformation temperatures, elastic and anelastic properties of β′ 1 Cu-Al-Ni martensitic single crystals

2002 ◽  
Vol 82 (12) ◽  
pp. 2419-2440
Author(s):  
S. Golyandin ◽  
S. Kustov ◽  
S. Nikanorov ◽  
K. Sapozhnikov ◽  
A. Sinani ◽  
...  
Keyword(s):  
Shock Wave ◽  
Single Crystals ◽  
Shock Wave Loading ◽  
Wave Loading ◽  
Transformation Temperatures

Entrainment and Annihilation of Reentrant Excitation in a Periodically Stimulated Ring of Excitable Media

1997 ◽  
Vol 36 (04/05) ◽  
pp. 290-293
Author(s):  
L. Glass ◽  
T. Nomura
Keyword(s):  
Cardiac Arrhythmias ◽  
Initial Phase ◽  
Human Heart ◽  
Periodic Wave ◽  
Excitable Media ◽  
One Dimensional ◽  
Clinical Observations ◽  
Periodic Stimulation ◽  
Reentrant Excitation ◽  
Stimulation Of

Abstract:Excitable media, such as nerve, heart and the Belousov-Zhabo- tinsky reaction, exhibit a large excursion from equilibrium in response to a small but finite perturbation. Assuming a one-dimensional ring geometry of sufficient length, excitable media support a periodic wave of circulation. As in the periodic stimulation of oscillations in ordinary differential equations, the effects of periodic stimuli of the periodically circulating wave can be described by a one-dimensional Poincaré map. Depending on the period and intensity of the stimulus as well as its initial phase, either entrainment or termination of the original circulating wave is observed. These phenomena are directly related to clinical observations concerning periodic stimulation of a class of cardiac arrhythmias caused by reentrant wave propagation in the human heart.

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