scholarly journals Scaled model experiment of long-range across-slope pulse propagation in a penetrable wedge

2009 ◽  
Vol 126 (1) ◽  
pp. EL22-EL27 ◽  
Author(s):  
Alexios Korakas ◽  
Frédéric Sturm ◽  
Jean-Pierre Sessarego ◽  
Didier Ferrand
Keyword(s):  
Long Range ◽  
Model Experiment ◽  
Pulse Propagation ◽  
Scaled Model

Ventilation Characteristics of Modeled Compact Car Part 5 - Scaled Model Experiment for Heat Transfer Characteristics

2012 ◽  
Author(s):  
Yoshiichi Ozeki ◽  
Hideaki Nagano ◽  
Takuya Kataoka ◽  
Hironao Iwase ◽  
Hisafumi Doi ◽  
...  
Keyword(s):  
Heat Transfer ◽  
Model Experiment ◽  
Heat Transfer Characteristics ◽  
Scaled Model ◽  
Transfer Characteristics

scholarly journals Manoeuvrability of a Large Cruise Ship after Damage for Safe Return to Port

2020 ◽  
Vol 8 (5) ◽  
pp. 378
Author(s):  
Tetsuhiro Yuura ◽  
Hirotada Hashimoto ◽  
Akihiko Matsuda
Keyword(s):  
Simulation Model ◽  
Model Test ◽  
Model Experiment ◽  
Cruise Ship ◽  
Scaled Model ◽  
Cruise Ships ◽  
Head Waves ◽  
Calm Water ◽  
Free Running ◽  
Captive Model Test

Free-running model tests were conducted using a scaled model of a large cruise ship with a damaged compartment, to investigate the effects of damage opening and floodwater on the manoeuvring performance in calm water and regular and irregular head waves. Drifting tests in regular beam waves were also performed. The experimental results indicated that the course-keeping ability in waves and turning ability became worse in the damaged condition. However, the target ship retained its manoeuvrability for safe return to the port, on its own, even in a damaged state. As it is time- and cost-consuming to conduct a free-running model experiment, a captive model test was also carried out to develop a system-based simulation model for evaluating the manoeuvrability of large cruise ships after damage.

Comparison of data and parabolic equation solutions for long‐range pulse propagation

1993 ◽  
Vol 93 (4) ◽  
pp. 2426-2426
Author(s):  
Kevin D. Heaney ◽  
W. A. Kuperman ◽  
B. Edward McDonald ◽  
Michael D. Collins
Keyword(s):  
Parabolic Equation ◽  
Long Range ◽  
Pulse Propagation

scholarly journals Pulse Propagation in Random Media with Long-Range Correlation

2009 ◽  
Vol 7 (3) ◽  
pp. 1302-1324 ◽  
Author(s):  
Josselin Garnier ◽  
Knut SØlna
Keyword(s):  
Long Range ◽  
Random Media ◽  
Pulse Propagation ◽  
Range Correlation

Semi-Active Sloshing Suppression Control of Liquid in Vessel With Bulkhead

2010 ◽  
Vol 132 (5) ◽  
Author(s):  
Nobuyuki Kobayashi ◽  
Yusuke Koyama
Keyword(s):  
Model Experiment ◽  
Control Algorithm ◽  
Liquid Surface ◽  
Control Method ◽  
Closed Vessel ◽  
Air Spring ◽  
Scaled Model ◽  
Valve Operation ◽  
Gas Chamber ◽  
Sloshing Suppression

A semi-active sloshing suppression control method for the contained liquid in the closed vessel is presented. The presented method uses the air spring effect of the gas chamber on the liquid surface, when the closed vessel is divided into two separated compartments with the vertical bulkhead in it so as to allow communication between two compartments at the lower part of the vessel. When the valve that is laid on the bulkhead between the two gas chambers closes, the spring effect of the gas chamber arises. On the contrary, when the valve opens, the spring effect of the gas chamber diminishes. A switching control algorithm of the valve operation is designed to decrease the sloshing response. The effectiveness of the presented semi-active sloshing suppression control method is examined with numerical simulations and the scaled model experiment. As the result, the presented method is verified to be effective to suppress the sloshing while the consuming energy to control the valve is small.

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