Study on the Effect of Air Injection Location on the Drag Reduction in SWATH with Air Lubrication-Reference-Cited by-同舟云学术

Study on the Effect of Air Injection Location on the Drag Reduction in SWATH with Air Lubrication

Published:2023-03-22 Issue:3 Volume:11 Page:667
ISSN:2077-1312
Container-title:Journal of Marine Science and Engineering
language:en
Short-container-title:JMSE

Author:

Zhang Dapeng¹^ORCID,Li Yunbo²,Gong Jiaye²

Affiliation:

1. College of Shipping Building Engineering, Harbin Engineering University, Harbin 150001, China

2. College of Ocean Science and Engineering, Shanghai Maritime University, Shanghai 201306, China

Abstract

In this paper, the air lubrication method is applied to high-speed SWATH (small waterplane area twin hull) to reduce the resistance. The influence of air injection locations on drag reduction is investigated. The computed results are compared with experimental results, and the grid independence test is performed. Then, the numerical method is used to simulate the resistance of SWATH in calm water with airflow. The hull is divided into different areas, and the influence of the air injection location on the drag reduction in different areas of the hull is studied through different air injection locations and airflow rates. It could be seen that the air injection location on the underwater body is more conducive to the drag reduction in SWATH than the air injection location on the strut. Besides, the air injection location near the bow of the underwater body could cause a better drag reduction effect of SWATH. There are obvious differences in the drag reduction effect of different areas of the underwater body.

Funder

National Natural Science Foundation of China

Science and Technology Commission of Shanghai Municipality, China

Publisher

MDPI AG

Subject

Ocean Engineering,Water Science and Technology,Civil and Structural Engineering

Link

https://www.mdpi.com/2077-1312/11/3/667/pdf

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