Research on Navigable Ship Model Test in Curved Waterway

2014 ◽  
Vol 580-583 ◽  
pp. 1918-1922
Author(s):  
Chang Hong Wang ◽  
Xiao Bing Cheng
Keyword(s):  
Model Test ◽  
Safety Management ◽  
Channel Width ◽  
Flow Angle ◽  
Track Width ◽  
Ship Model ◽  
Ship Model Test ◽  
Ship Control ◽  
Hanjiang River ◽  
The Relationship

The flow of bend reach is complicated, which is difficulty for intersection of ship,and is accident prone. According to the lower reaches of the Hanjiang River MaKou reach of ship model test results, the relationship between channel width and flow are summarized when ship navigation sail in bend reach, which indicated that at approximately the same speed, navigation width of sailing through the bend upward are much smaller than down. As velocity or flow angle increases, the ship track width is broader, and channel width is also broader. the ship control and peer safety management points are forwarded in the lower reaches of Hanjiang river bend, which can provide reference for similar engineering designand research of waterway.

Research on the Wing's Thrust of “Wenzhuhai” Ship with Install Wing

2012 ◽  
Vol 462 ◽  
pp. 307-312 ◽  
Author(s):  
Hong Ying Ren ◽  
Pei Ting Sun ◽  
You Tao Zhao ◽  
Lian Zhong Huang ◽  
Hong Ming Wang ◽  
...  
Keyword(s):  
Model Test ◽  
Ship Model ◽  
Ship Resistance ◽  
Examination Result ◽  
Ship Model Test ◽  
Fluent Software

In this paper the resistance of one ship with installing wing and wing’s thrust have been studied in both theory and simulation by fluent software. The influence of ship resistance which from leeway angle and down helm was analyzed on the basis of the examination result of ship model test.

Safe Speed in Bridge Area and Impact Determination for Pier

2012 ◽  
Vol 253-255 ◽  
pp. 2064-2070
Author(s):  
Ning Yang Fan ◽  
Xiao Ping Liu
Keyword(s):  
Model Test ◽  
Scientific Method ◽  
Management Issue ◽  
Ship Model ◽  
Practical Experiment ◽  
Safe Navigation ◽  
Ship Model Test ◽  
Intercity Railway ◽  
Current Impact ◽  
Operation And Management

The safe speed in bridge area and the security of the bridge’s structure is a technical and a management issue; it should pay highly attention in terms of design, maintenance, and operation and management. The point of the shipping departments and the bridge designing departments for reference in two distinguished aspects are discussed when it comes into the problems of the speed in bridge area. The conception of “safe speed in bridge area” is based on current impact determination for pier and the study of safe speed at home and abroad. The ship adopted the safe shipping speed in bridge area and can meet the requirements of the safe navigation demanded by the shipping departments, and its velocity value can provide reference for the bridge designing in terms of anti-collision. The practical experiment on super large bridge in Changzhutan intercity railway and the ship model test on navigation show that the presentation of safe speed in bridge area ships was a relatively scientific method, and the presentation can provide new idea on solving contradiction between the construction of the bridge and the navigation part.

scholarly journals Numerical calculation of the resistance of catamarans at different distances between two hulls

2021 ◽  
Vol 283 ◽  
pp. 01008
Author(s):  
Zhaochun Liu ◽  
Xiufeng Zhang ◽  
Yao Meng ◽  
Linghong Wang
Keyword(s):  
Numerical Calculation ◽  
Model Test ◽  
Calculation Method ◽  
Empirical Formula ◽  
Test Method ◽  
Hydrodynamic Characteristics ◽  
Model Parameters ◽  
Ship Model ◽  
Ship Model Test ◽  
Numerical Calculation Method

For the design of high-speed catamarans, different distances between slices have obvious interference with the total resistance of the catamaran. In order to accurately predict the hydrodynamic characteristics of the catamaran and explore the interference of the chip spacing on the resistance prediction, this paper uses a combination of CFD calculations and empirical formulas to predict the ship model resistance under different chip spacings and calculate them. The result is compared with the empirical formula. The results of the ship model test and the results calculated by the empirical formula were used to verify the numerical calculation results. The results show that the resistance change trend is consistent, and the numerical calculation method is effective and feasible. Finally, the numerical calculation method is compared with the ship model test method, and the result is within the error range, which has certain reference value for the design and optimization of the catamaran model parameters.

A moving PIV system for ship model test in a towing tank

2006 ◽  
Vol 33 (14-15) ◽  
pp. 2025-2046 ◽  
Author(s):  
Jeng-Horng Chen ◽  
Che-Chun Chang
Keyword(s):  
Model Test ◽  
Towing Tank ◽  
Ship Model ◽  
Ship Model Test

scholarly journals On Experiment of Determining the Relationship between Ship Maneuverability and Gravity of Metacenter using Ship Model

2019 ◽  
Vol 8 (11) ◽  
pp. 2060-2064
Keyword(s):  
Science And Technology ◽  
Quantitative Relationship ◽  
Control Problems ◽  
Ship Maneuvering ◽  
Scaled Model ◽  
Ship Model ◽  
Ship Maneuverability ◽  
Ship Control ◽  
Metacentric Height ◽  
The Relationship

Understanding of ship maneuverability and factors effecting to ship maneuverability is important to naval architectures and marine navigators. In ship control problems, the ship maneuvering characteristic must be considered before designing the controllers. With the development of science and technology, it allowed the studies of ship maneuvering to be performed in computation simulations. However, there are always the different results between computation simulation and the fact. For that purpose, this article presents an experiment to establish the quantitative relationship between metacentric height and ship maneuverability using scaled model ship

scholarly journals Analisa Ketidakpastian Pengujian Resistance Model Kapal LCT 1000 DWT

2019 ◽  
Vol 4 (1) ◽  
pp. 21
Author(s):  
Dian Purnamasari ◽  
AAB. Dinariyana ◽  
Meitha Soetardjo
Keyword(s):  
Uncertainty Analysis ◽  
Model Test ◽  
Towing Tank ◽  
Ship Model ◽  
Ship Model Test ◽  
Resistance Model

Uji tahanan yang dilakukan di tangki tarik memiliki kesalahan (ketidakpastian) pada hasil. Analisa ketidakpastian dapat digunakan untuk mengevaluasi kualitas data percobaan dan menyediakan perkiraan kuantitatif kesalahan percobaan. Metodologi analisa ketidakpastian, prosedur, dan hasil disajikan untuk uji tahanan model kapal LCT 1000 DWT skala (λ) 15 dengan ukuran model kapal L = 3,997 M, B = 1000 M, T = 0,167 M, WSA = 4,089 M2, Prosedur dirangkum dan mengikuti International Towing Tank Conference (ITTC) Kualitas Manual Prosedur. Hasil penelitian menunjukkan nilai ketidakpastian sebesar 1,27% dari kecepatan 1,3271 m/s dan nilai ketidakpastian sebesar 4,79% dari tahanan 1,2771 kg.Keywords : Uncertainty analysis, Procedures, Ship model test.

The Resistance Simulation of the Y550 Yacht

2012 ◽  
Vol 271-272 ◽  
pp. 1455-1458
Author(s):  
Shu Jiang Li ◽  
Wei Min Yang ◽  
Wen Juan Bai ◽  
Yang Wang
Keyword(s):  
Fluid Dynamics ◽  
Computational Fluid Dynamics ◽  
Flow Field ◽  
Model Test ◽  
Simulation Analysis ◽  
Simulation Data ◽  
Ship Model ◽  
Ship Model Test ◽  
Static Water ◽  
Distribution Of Flow

For the model test and simulation analysis will make combined research,according to the computational fluid dynamics theory based on the ship model test,through to the Y550 yacht do resistance simulation, obtain the Y550 the distribution of flow field in the different pressure and speed,finally obtain the resistance simulation data of the Y550 in static water.

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