scholarly journals Model Test on the Variation of Wave Overtopping per Wave

1992 ◽  
Vol 8 ◽  
pp. 337-342
Author(s):  
Tomotsuka Takayama ◽  
Yasumasa Suzuki ◽  
Naota Ikeda ◽  
Hisashi Fujii
Keyword(s):  
2014 ◽  
Vol 1065-1069 ◽  
pp. 475-479
Author(s):  
Yun Peng Jiang ◽  
Feng Gao

Pile jetty is a typical type of wharf in construction of port engineering and was often built in front of revetment. The reflected wave height, wave overtopping and pressure were usually reduced because of the barrier effect of upper platform and piles. Cross-section model test was in common use for the verification of structure design. The shelter effect of pile jetty on revetment was tested through cross-section wave physical model. Model scale was 1:20. The results show that the shelter effect is fairly obvious in high design water level. The reduction percentage was 33% of reflected wave height, 50% of wave overtopping and 30-50% of wave loading.


1999 ◽  
Vol 15 ◽  
pp. 19-24
Author(s):  
Koji IWASE ◽  
Tsuyoshi IKEYA ◽  
Shoichi ABE ◽  
Hayato NOTOYA

Author(s):  
Darshana Dassanayake ◽  
Andreas Kortenhaus ◽  
Hocine Oumeraci ◽  
Kevyn Bollinger ◽  
Randa Hassan

Author(s):  
Shoji Kunitomi ◽  
Hajime Mase ◽  
Tomotsuka Takayama
Keyword(s):  

IACGE 2018 ◽  
2019 ◽  
Author(s):  
Tao Liu ◽  
San-peng Li ◽  
Hai-lei Kou ◽  
Peng Yu ◽  
Zhong-nian Yang
Keyword(s):  

2013 ◽  
Vol 12 (3) ◽  
Author(s):  
Iskendar Iskendar ◽  
Andi Jamaludin ◽  
Paulus Indiyono

This paper describes hydrodynamic model tests of Wing in Surface Effect (WiSE) Craft. These craft  was fitted with  stephull  form in different location on longitudinal flat bottom (stepedhull planning craft) to determine the influences of sticking and porpoising motion performances. These motions are usually occured when the craft start to take-off from water surfaces. The test models with scale of 1 : 7 were comprised of 4 (four) stephull models and 1 (one) non-stephull model  as a comparative study. The hydrodynamic  tests were performed with craft speed of 16 – 32 knots (prototype values) in Towing Tank at UPT. Balai Pengkajian dan Penelitian Hidrodinamika (BPPH), BPPT, Surabaya. The resistance (drag) was measured by dynamo meter and the trim of model (draft changing at fore and aft  of model due to model speed) was measured by trim meter. By knowing the value of model trim, the wetted surface area can be determined. Then, the lift forces were calculated based on these measured values. The model test results were presented on tables and curves.  Test results show that models  with step located far away from center of gravity of the WiSE craft tend to porpoising and sticking condition, except if the step location on the below of these center of gravity. While model without step tends to sticking conditions.


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