Experimental and numerical study on the oblique water-entry impact of a cavitating vehicle with a disk cavitator
In this paper, the oblique water-entry impact of a vehicle with a disk cavitator is studied experimentally and numerically. The effectiveness and accuracy of the numerical simulation are verified quantitatively by the experiments in this paper and the data available in the literature. Then, the nume...
Main Authors: | , , , |
---|---|
Format: | Article |
Language: | English |
Published: |
Elsevier
2019-01-01
|
Series: | International Journal of Naval Architecture and Ocean Engineering |
Online Access: | http://www.sciencedirect.com/science/article/pii/S2092678218300876 |
id |
doaj-11689489bfb244aba1e34574187222c5 |
---|---|
record_format |
Article |
spelling |
doaj-11689489bfb244aba1e34574187222c52020-11-25T00:41:58ZengElsevierInternational Journal of Naval Architecture and Ocean Engineering2092-67822019-01-01111482494Experimental and numerical study on the oblique water-entry impact of a cavitating vehicle with a disk cavitatorCheng Chen0Xulong Yuan1Xiyan Liu2Jianjun Dang3Corresponding author.; School of Marine Science and Technology, Northwestern Polytechnical University, 710072, Xi'an, Shaanxi, ChinaCorresponding author.; School of Marine Science and Technology, Northwestern Polytechnical University, 710072, Xi'an, Shaanxi, ChinaSchool of Marine Science and Technology, Northwestern Polytechnical University, 710072, Xi'an, Shaanxi, ChinaSchool of Marine Science and Technology, Northwestern Polytechnical University, 710072, Xi'an, Shaanxi, ChinaIn this paper, the oblique water-entry impact of a vehicle with a disk cavitator is studied experimentally and numerically. The effectiveness and accuracy of the numerical simulation are verified quantitatively by the experiments in this paper and the data available in the literature. Then, the numerical model is used to simulate the hydrodynamic characteristics and flow patterns of the vehicle under different entry conditions, and the axial force is found to be an important parameter. The influences of entry angle, entry speed and cavitator area on the axial force are studied. The variation law of the force coefficient and the dimensionless penetration distance at the peak of the axial force are revealed. The research conclusions are beneficial to engineering calculations on the impact force of a vehicle with a disk cavitator over a wide range of water-entry parameters. Keywords: Vehicle, Oblique water entry, Impact force characteristics, Experimental and numerical analyseshttp://www.sciencedirect.com/science/article/pii/S2092678218300876 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Cheng Chen Xulong Yuan Xiyan Liu Jianjun Dang |
spellingShingle |
Cheng Chen Xulong Yuan Xiyan Liu Jianjun Dang Experimental and numerical study on the oblique water-entry impact of a cavitating vehicle with a disk cavitator International Journal of Naval Architecture and Ocean Engineering |
author_facet |
Cheng Chen Xulong Yuan Xiyan Liu Jianjun Dang |
author_sort |
Cheng Chen |
title |
Experimental and numerical study on the oblique water-entry impact of a cavitating vehicle with a disk cavitator |
title_short |
Experimental and numerical study on the oblique water-entry impact of a cavitating vehicle with a disk cavitator |
title_full |
Experimental and numerical study on the oblique water-entry impact of a cavitating vehicle with a disk cavitator |
title_fullStr |
Experimental and numerical study on the oblique water-entry impact of a cavitating vehicle with a disk cavitator |
title_full_unstemmed |
Experimental and numerical study on the oblique water-entry impact of a cavitating vehicle with a disk cavitator |
title_sort |
experimental and numerical study on the oblique water-entry impact of a cavitating vehicle with a disk cavitator |
publisher |
Elsevier |
series |
International Journal of Naval Architecture and Ocean Engineering |
issn |
2092-6782 |
publishDate |
2019-01-01 |
description |
In this paper, the oblique water-entry impact of a vehicle with a disk cavitator is studied experimentally and numerically. The effectiveness and accuracy of the numerical simulation are verified quantitatively by the experiments in this paper and the data available in the literature. Then, the numerical model is used to simulate the hydrodynamic characteristics and flow patterns of the vehicle under different entry conditions, and the axial force is found to be an important parameter. The influences of entry angle, entry speed and cavitator area on the axial force are studied. The variation law of the force coefficient and the dimensionless penetration distance at the peak of the axial force are revealed. The research conclusions are beneficial to engineering calculations on the impact force of a vehicle with a disk cavitator over a wide range of water-entry parameters. Keywords: Vehicle, Oblique water entry, Impact force characteristics, Experimental and numerical analyses |
url |
http://www.sciencedirect.com/science/article/pii/S2092678218300876 |
work_keys_str_mv |
AT chengchen experimentalandnumericalstudyontheobliquewaterentryimpactofacavitatingvehiclewithadiskcavitator AT xulongyuan experimentalandnumericalstudyontheobliquewaterentryimpactofacavitatingvehiclewithadiskcavitator AT xiyanliu experimentalandnumericalstudyontheobliquewaterentryimpactofacavitatingvehiclewithadiskcavitator AT jianjundang experimentalandnumericalstudyontheobliquewaterentryimpactofacavitatingvehiclewithadiskcavitator |
_version_ |
1725284581045698560 |