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Unstructured Grid Immersed Boundary Method for Numerical Simulation of Fluid Structure Interaction
fluid structure interaction immersed boundary method VOS unstructured grids finite volume method
2011/9/9
This paper presents an improved unstructured grid immersed boundary method. The advantages of both immersed boundary method and body fitted grids which are generated by unstructured grid technology ar...
Power Flow Calculation Method of Large Shipboard Power System
power flow method node voltage method asynchronous motor transformer
2011/9/9
The effect of line voltage drop is considered larger on loads, especially on asynchronous motor, transformers and other non-linear load parameters in power system of large ships. A novel power flow me...
Using a Time-domain Higher-order Boundary Element Method to Simulate Wave and Current Diffraction from a 3-D Body
wave-current diffraction time-domain simulation drift force higher-order boundary element method
2011/9/9
To study wave-current actions on 3-D bodies a time-domain numerical model was established using a higher-order boundary element method (HOBEM). By assuming small flow velocities, the velocity potentia...
A method for testing drag-reduction on riblet surfaces based on the Spalding formula
Spalding formula riblet surface drag-reduction testing
2011/9/13
This paper presents a method based on the Spalding formula for testing drag-reduction on riblet surfaces. Its advantage lies in that it is more convenient and yields more precise data compared with te...
A Statistical Method for Analyzing Wave Shapes And Phase Relationships of Fluctuating Geophysical Variables
Wave Shapes Fluctuating Geophysical Variables Phase Relationships
2009/4/2
A system of computational techniques was developed to detect a variety of structural features in geophysical time series containing turbulent or wave-like fluctuations. Individual probability density ...
Internal Wave Dispersion Calculated Using the Thomson-Haskell Method
Internal Wave Thomson-Haskell Method
2009/3/24
The dispersion and amplitude characteristics of internal wave motion are determined by a matrix method which lends itself readily to computer analysis. A layered density structure may be chosen to fit...
Simple Method for Measuring Relative Humidity, Water and Air Temperatures Within a Few Millimeters of Wind-Generated Water Waves
Measuring Relative Humidity Air Temperature Wind-Generated Water Waves
2009/3/24
A very short time-constant thermistor, mounted on a streamlined strut, was placed to alternately measure the water and air temperatures during the passage of wind-driven water waves in the laboratory....
A New Method for Measuring the Directional Wave Spectrum. Part II. Measurement of the Directional Spectrum and Phase Velocity of Laboratory Wind Waves
Directional Wave Spectrum Phase Velocity Directional Spectrum Laboratory Wind Waves
2009/2/23
A new method for measuring the directional spectrum, introduced in the preceding paper (Rikiishi, 1978), has been applied to actual wind waves in a large experimental tank 70 m × 8 m with the water 3 ...
A New Method for Measuring the Directional Wave Spectrum. Part I. Description
Directional Wave Wave Spectrum
2009/2/23
A new method for measuring the directional wave spectrum is introduced, and the usefulness of the method is examined through numerical analysis of synthetic wave fields. The principle of the method co...
Numerical Simulation of the 29 November 1975 Island of Hawaii Tsunami by the Finite-Element Method
Numerical Simulation Finite-Element Method Hawaii Tsunami
2009/2/13
The finite-element method is applied to study the transient response of a locally generated tsunami. The model time-steps the linearized shallow-water wave equation over a variable mesh of triangular ...
Method of Objective Analysis for Currents in a Lake with Application to Lake Ontario
International Field Year for the Great Lakes Lake Ontario
2009/2/9
The mean circulation in large takes is nearly nondivergent in character. This paper takes advantage of this fact to represent the flow field in terms of the transport streamfunction. The horizontal v...
Estimating Monthly Averaged Air-Sea Transfers of Heat and Momentum Using the Bulk Aerodynamic Method
Air-Sea Transfers Momentum Using Heat Bulk Aerodynamic Method
2009/2/9
Air-sea transfers of sensible heat, latent heat and momentum are computed from 25 years of middle-latitude and subtropical ocean weather ship data in the North Atlantic and North Pacific using the bul...
Remote Synoptic Surface Current Measurements by Gravity Waves：A Method and its Test in a Small Body of Water
Synoptic surface current wave-current interaction Gravity Waves
2009/2/7
Synoptic surface current data in a lagoon have been obtained utilizing a new approach that evolved from the kinematics of wave-current interaction. Surface current at a position was determined from wa...
A Simple Method for Estimating Barotropic Tidal Currents on Continental Margins with Specific Application to the M2 Tide off the Atlantic and Pacific Coasts of the United States
Barotropic Tidal Currents United States Continental Margins
2009/2/7
Theory is developed to describe barotropic tidal currents on “smooth” continental shelves, that is, continental shelves with longshore scales much greater than the shelf width. Two models are consider...
Computations and Parameterizations of the Nonlinear Energy Transfer in a Gravity-Wave Spectrum. Part I：A New Method for Efficient Computations of the Exact Nonlinear Transfer Integral
Nonlinear Energy Transfer Gravity-Wave Spectrum Nonlinear Transfer Integral
2009/1/16
A more efficient method of computing the nonlinear transfer in a surface wave spectrum is developed which is symmetrical with respect to all wavenumbers of the resonant interaction quadruplets. This e...