NUMERICAL SIMULATION ON MOORED FLOATING BODY IN WAVE BY IMPROVED MPS METHOD

Author(s):  
Hiroyuki Ikari ◽  
Hitoshi Gotoh ◽  
Abbas Khayyer
Author(s):  
Koichi Masuda ◽  
Mitsuhiro Masuda ◽  
Tomoki Ikoma

The present paper describes the application of the moving particle semi-implicit method to a prediction of collision forces on water-front facilities induced by floating vessels washed onto the apron by tsunami. Effectiveness of the application is verified. Solitary waves are applied to simulated tsunamis in numerical simulation and to the model experiments. A pontoon type floating body is applied to floating structures in numerical simulations using the MPS method. The present calculation results are compared with the experimental results and the applicability of MPS method is discussed. Further, after being washed onto the wharf by tsunami, the characteristics of collision force on water-front facilities induced by the floating bodies are discussed.


Author(s):  
Koichi Masuda ◽  
Tomoki Ikoma ◽  
Mitsuhiro Masuda ◽  
Yuta Suzuki

The present paper describes the application of the moving particle semi-implicit method to a prediction of tsunami-induced grounding of floating structures in the vicinity of wharfs. Effectiveness of the application is verified. Solitary wave have been applied to simulated tsunamis in numerical simulation and to the model experiments. A pontoon type floating body has been used to floating structures in numerical simulations using the MPS method. The present numerical results have been compared with the experimental results and the applicability of MPS method has been discussed. Further, after the grounding, the characteristics of gliding distance of floating body on the wharf have been discussed.


Author(s):  
Koichi Masuda ◽  
Takujiro Miyamoto ◽  
Tomoki Ikoma ◽  
Mitsuhiro Masuda

The present paper describes the application of the moving particle semi-implicit method to a prediction of drifting distance and collision force of floating vessels run on wharf by tsunami. Effectiveness of the application is verified. Solitary wave have been applied to simulated tsunamis in numerical simulation and to the model experiments. A pontoon type floating body has been used to floating structures in numerical simulations using the MPS method. The present numerical results have been compared with the experimental results and the applicability of MPS method has been discussed. Further, after the running on wharf by tsunami, the characteristics of drifting distance and collision force of floating body on the wharf have been discussed.


2001 ◽  
Vol 4 ◽  
pp. 103-111
Author(s):  
Kensaku MATSUMOTO ◽  
Shigeki KOBATAKE ◽  
Yoshihiko SHIMIZU ◽  
Masahiro SUGIYAMA ◽  
Ioakim IOAKIM

Author(s):  
Masao Yokoyama ◽  
Yoshihiro Kubota ◽  
Osamu Mochizuki

Splashes generated by hydrogel sphere were simulated numerically and experimentally for investigating the effects of slip like mucus of living things. Numerical simulation using MPS (Moving Particle Semi-implicit) method was carried out. We defined the slip ratio as the swelling degree of hydrogel and installed the slip ratio into the MPS method. The swelling degree is the ratio of the weight of water against that of hydrogel. We simulated the splashes generated by the hydrogel spheres which had the different swelling degree plunging into water. As the evaluation of swelling degree on the surface of actual hydrogel spheres we also tested by using the hydrogel spheres plunging into water experimentally. The height of splash as a result of reaction of the air cavity became higher according to the increase of the swelling degree. The speed of hydrogel sphere sinking in water tank was also quicker in the numerical simulation. The reason of these results was that the velocity of water around the hydrogel sphere became quicker due to the slip on the surface.


Author(s):  
HITOSHI GOTOH ◽  
HIROYUKI IKARI ◽  
KOJI TONOMO ◽  
ATSUNORI MIZOE

2014 ◽  
Vol 2014.20 (0) ◽  
pp. _20618-1_-_20618-2_
Author(s):  
Shinichiro MIURA ◽  
Shuhei KASHIWASE

1997 ◽  
Vol 490 ◽  
Author(s):  
A. M. Ionescu ◽  
F. Chaudier ◽  
A. Chovet

ABSTRACTThis paper presents a numerical-simulation-based investigation of drain current transients in floating body partially and fully depleted n-channel SOI MOSFETs. For both Zerbst-type and overshoot transients, analytical models are developed and validated. An original contribution concerns the detailed study of drain and source junction influences on the transient regime.


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