A High-Efficiency Theorical Model of Von Karman–Generalized Wagner Model–Modified Logvinovich Model for Solving Water-Impacting Problem of Wedge-Reference-Cited by-同舟云学术

A High-Efficiency Theorical Model of Von Karman–Generalized Wagner Model–Modified Logvinovich Model for Solving Water-Impacting Problem of Wedge

Published:2024-07-04 Issue:7 Volume:12 Page:1125
ISSN:2077-1312
Container-title:Journal of Marine Science and Engineering
language:en
Short-container-title:JMSE

Author:

Liu Weiqin¹²,Liu Tao²,Hu Qi³⁴,Wang Mingzhen³⁴,Song Xuemin¹²^ORCID,Chen Hao²

Affiliation:

1. Key Laboratory of High Performance Ship Technology, Wuhan University of Technology, Ministry of Education, Wuhan 430063, China

2. Departments of Naval Architecture, Ocean and Structural Engineering, School of Naval Architecture, Ocean and Energy Power Engineering, Wuhan University of Technology, Wuhan 430063, China

3. Department of Naval Architecture and Ocean Engineering, China Special Vehicle Research Institute, Jingmen 448100, China

4. Department of Naval Architecture and Ocean Engineering, School of Naval Architecture, Ocean and Civil Engineering, Key Laboratory of High-Speed Hydrodynamic Aviation Science and Technology, Jingmen 448100, China

Abstract

The water-impacting behavior of a wedge is often studied in the slamming phenomenon of ships and aircraft. Many scholars have proposed theoretical models for studying the water-impacting problem of a wedge, but these models still have some shortcomings. This study combines Von Karman’s method, the Generalized Wagner Model (GWM), and Modified Logvinovich Model (MLM) to establish a converged theoretical Von Karman-GWM-MLM (VGM) model. The VGM model utilizes added mass to replace the fluid influence, which is derived from the velocity potential and boundary conditions. Considering the influence of impulse, the velocity is determined by the momentum theorem. Subsequently, the pressure, resultant force, and acceleration of the wedge can be calculated. By comparing with the published test data of other scholars, it is found that the velocity, acceleration, pressure, and force of the wedge obtained by the VGM model reached a consensus with experiments. The validity and accuracy of the VGM model are also verified. The efficiency and accuracy of problem-solving are both balanced when using the VGM model. The establishment of the VGM model is significant for solving water-impacting problems related to wedges.

Publisher

MDPI AG

Link

https://www.mdpi.com/2077-1312/12/7/1125/pdf

Reference35 articles.

1. (2016, August 01). US District Court, Southern District of New York, 97 Civ. 9052 (RO), July 2004. Available online: http://www.tradewinds.no/multimedia/archive-/00050/MSCCarlajudgmentJ50784a.

2. Nagatomi, K., Fuji, K., and Yanagihara, D. (June, January 31). Elastoplastic Structural Response Obtained by Fluid-Structure Interaction Analysis for Floating Beams in Waves. Proceedings of the Japan Society of Naval Architects and Ocean Engineers, Kobe, Japan.

3. (2002). “Final Indonesia NTSC Report GA421 B737 PK-GWA Solo” (PDF), Indonesia National Transportation Safety Committee.

4. Bottomley, G.H. (1919). The Impact of a Model Seaplane Float on Water, Nature. Reports and Memoranda No. 583.

5. Sedov, L. (1934). The Impact of a Solid Body Floating on the Surface of an Incompressible Fluid, CAHI. Report 187.