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Characteristics of pulse propagation in Arctic Ocean were calculated by elastic Parabolic Equation (PE) method based on rotated Pade approximation. It was assumed that the transmitter was placed at 10...
The characteristics of a plunger absorbing wavemaker are studied. In the present wave absorption system the wavemaker is controlled to absorb the incoming waves by means of digital filtering of wave e...
As well known, propeller and hull of ship are fouled and their surface are roughened due to various causes such as adhesion of sea-lives, painting degradation, cavitation erosion etc. The surface roug...
The present paper investigates the shallow water effect on the hydrodynamic characteristics of lifting body such as wave resistance, sinkage and trim using a potential based boundary element method. T...
A variational principle is presented to solve the boundary-value problem with the unknown wetted surface of a planing ship in periodic motion. The boundary-value problem is solvable uniquely under the...
It is generally known that the screw propeller has the highest efficiency in the marine propulsive devices. For fully submerged propeller it is well known that cavitation phenomena on propeller blades...
The problem of free surface potential flow around a ship in shallow water is subjected to linearized form of free surface condition and kinematic conditions on the body and bottom surface. The solutio...
The propulsion performance of actual ship at sea tends to deteriorate mainly due to the fouling of hull and propeller. It is important, therefore, to monitor the present situation of ship propulsion p...
In order to clarify correlation between properties of coating on ship hull surfaces and frictional resistance, experimental studies were carried out. A rotating cylinder type dynamometer was newly dev...
In this paper, a new strategy of fully automatic hexahedral mesh generation is proposed. In this strategy, the prerequisite for generating hexahedral is quadrilateral surface mesh. From the given sur...
This paper presents a calculation method for the steady cavitating propeller problem. The method is based on a simplified surface panel method "SQCM" which satisfies the Kutta condition at a time even...
This paper, for the first time, describes development and demonstration of a CAD/CFD/optimizer-integrated simulation-based design (SBD) framework by introducing an advanced CAD system direct control a...
An affix-type multipoint pressure sensor was developed by using the Fiber Bragg Grating (FBG) technology. In the 1st report, the measurement system of FBG pressure sensor was described and the perform...
On the numerical simulation using the BEM, the computational disadvantage by dealing with the particular fluid domain due to the jet flow is discussed and the adaptive schemes for robust time-donain c...
Sea surface waves had been observed remotely by using a continuous wave (CW) X-band microwave Doppler radar at off Hiratsuka of Sagami-bay. A new algorithm was applied to retrieve a sea surface elevat...

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