TRANSACTIONS OF THE KRYLOV STATE RESEARCH CENTRE

Science journal

 
ISSN (print) 2542-2324 /(online) 2618-8244


Articles of The Transactions of KSRC








Hydrodynamic parameters of air-cavity ship in a narrow fairway



Full text article ( in russian)

Year

 
2020

Issue

 
391

Volume

 
1

Pages

 
11-28

Caption

 
Hydrodynamic parameters of air-cavity ship in a narrow fairway

Authors

 
Galushina M., Sverchkov A., Chicherin I., Fomichev D., Schemelinin L., Cok L.

Keywords

 
mixed (river/sea) navigation vessel, artificial cavity, numerical methods, model tests, extremely shallow water,

DOI

 
10.24937/2542-2324-2020-1-391-11-28

Summary

 
Object and purpose of research. This paper discusses an inland-navigation container ship with increased block coefficient. Main hull dimensions of this ship are compliant with the requirements of Western European inland waterways. The purpose of this study is to experimentally validate the efficiency of air cavity in hydrodynamic resistance mitigation in different operational conditions, as well as to determine its effect upon ship maneuvrability.
Subject matter and methods.Numerical simulation intended to optimize hull lines. Experimental data were obtained in KSRC test tanks.
Main results. This research yielded new data on air cavity efficiency for a mixed-navigation (river/sea) carrier ship in deep water, open shallow water and restricted shallow-water channel. This paper also investigates the effect of air cavity upon ship maneuverability in both deep and shallow water.
Conclusion. The study shows that air cavities are a promising solution for mixed (river/sea) navigation vessels operating in inland waterways of the Western Europe. Recommended bottom profile reduces towing resistance by 14–20 % as compared to the basic ship with smooth hull lines. In terms of maneuverability, air-cavity ship is superior to the basic one in a number of aspects.

Rubrics

 
Naval architecture

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