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Marine Reserves a Solution to Bycatch Problem in Oceans（图）
Marine Reserves Bycatch Problem Oceans
2017/9/4
Commercial fishermen may be able to catch more of the profitable fish they want with marine reserves than without them, according to a study in the journal PNAS led by the University of California, Da...
Numerical Simulation and Experiment on Dam Break Problem
CIP method MPS method dam break experiment
2011/9/9
In this paper, two novel numerical computation methods are introduced which have been recently developed at Research Institute for Applied Mechanics ( RIAM ), Kyushu University, for strongly nonlinear...
Ocean Acidification: A Critical Emerging Problem for the Ocean Sciences
Ocean acidification water chemistry carbon dioxide the ocean
2015/7/6
Over a period of less than a decade, ocean acidification—the change in seawater chemistry due to rising atmospheric carbon dioxide (CO2) levels and subsequent impacts on marine life—has become one of ...
Application of Optimal Control Theory to Course Keeping Problem in Following Seas
Optimal Control Theory Following Seas Application
2009/4/28
When a ship runs in following and quartering seas, she could occasionally face broaching-to, which is a major threat of ship capsizing, or difficulty to keep her desired course due to wave-induce forc...
Application of the generalized quasi-complementar energy principle to the fluid-solid coupling problem
fluid-solid coupling elasto-dynamics generalized quasi-complementary energy
2011/9/9
The fluid-solid coupling theory, an interdisciplinary science between hydrodynamics and solid mechanics, is an important tool for response analysis and direct design of structures in naval architectur...
Application of a “Radiation-Type” Boundary Condition to the Wave, Porous Bed Problem
Radiation-Type Porous Bed Problem Boundary Condition
2009/3/7
The problem of a small-amplitude wave propagating over a flat porous bed is reanalyzed subject to the bottom boundary condition where u represents the horizontal velocity in the fluid,s represents the...
Predicting Changes in Tidal Regime：The Open Boundary Problem
Tidal Regime The Open Boundary Problem Predicting Changes
2009/3/7
Attempts to predict the impact on a tidal regime of large engineering structures are generally based on the use of a numerical model which is calibrated to reproduce the natural tidal regime and then ...
Open Ocean Modeling as an Inverse Problem：Tidal Theory
Open Ocean Modeling Inverse Problem Tidal Theory
2009/2/8
Classical models of tides in open coastal regions employ ad hoc conditions on the open boundaries instead of reliable sea level data on the coastline in order to achieve a well-posed problem. A weight...
Open Ocean Modeling as an Inverse Problem：M2 Tides in Bass Strait
Open Ocean Modeling Inverse Problem M2 Tides
2009/1/19
The solution of a linear model of barotropic M2 tides in Bass Strait is not consistent with new high quality tide gage and current meter data. This is attributed to the method used to estimate the for...
The Rossby Adjustment Problem in a Rotating, Stratified Channel, with and without Topography
general circulation model Stratified Channel Topography
2009/1/19
Some numerical experiments On geostrophic adjustment in a gratified channel were carried out, partly to test the use of an ocean general circulation model (GCM), and partly to elucidate the dynamical ...
On the Cylinder Collapse Problem, Mixing, and the Merger of Isolated Eddies
Cylinder Collapse Mixing Merger Isolated Eddies
2008/12/30
The Rossby adjustment of an initially circular column of water, the so-called collapse of a cylinder, continues to be a widely used method for forming lenslike eddies in the laboratory. Here, we consi...
The Problem of Gulf Stream Separation：A Barotropic Approach
Gulf Stream Separation Barotropic Approach western boundary current
2008/12/19
Inertial separation of a western boundary current from an idealized continent is studied in a homogeneous ocean circulation model. A number of processes are identified that either encourage or prevent...
Numerical Simulation of Flow around a Tall Isolated Seamount. Part I：Problem Formulation and Model Accuracy
Numerical Simulation Problem Formulation Model Accuracy
2008/12/19
A sigma coordinate ocean circulation model is employed to study flow trapped to a tall seamount in a periodic f-plane channel. In Part I, errors arising from the pressure gradient formulation in the s...
Instability of the Thermohaline Circulation with Respect to Mixed Boundary Conditions：Is It Really a Problem for Realistic Models?
Thermohaline Circulation Mixed Boundary Conditions Realistic Models
2008/12/15
A global primitive equations oceanic GCM and a simple four-box model of the meridional circulation are used to examine and analyze the instability of the thermohaline circulation in an ocean model wit...
Stability of Niiler’s Solution of the General Circulation Problem
General Circulation Problem Niiler’s Solution
2008/11/5
Niiler’s model of the general wind-driven ocean circulation is reformulated in a quasigeostrophic framework and solved analytically to first order of the perturbative expansion, both for interior and ...