Gong, K., Shao, S., Liu, H. et al. (2 more authors) (2019) Cylindrical smoothed particle hydrodynamics simulations of water entry. Journal of Fluids Engineering, 141 (7). 071303. ISSN 0098-2202
Abstract
This paper presents a smoothed particle hydrodynamics (SPH) modeling technique based on the cylindrical coordinates for axisymmetrical hydrodynamic applications, thus to avoid a full three-dimensional (3D) numerical scheme as required in the Cartesian coordinates. In this model, the governing equations are solved in an axisymmetric form and the SPH approximations are modified into a two-dimensional cylindrical space. The proposed SPH model is first validated by a dam-break flow induced by the collapse of a cylindrical column of water with different water height to semi-base ratios. Then, the model is used to two benchmark water entry problems, i.e., cylindrical disk and circular sphere entry. In both cases, the model results are favorably compared with the experimental data. The convergence of model is demonstrated by comparing with the different particle resolutions. Besides, the accuracy and efficiency of the present cylindrical SPH are also compared with a fully 3D SPH computation. Extensive discussions are made on the water surface, velocity, and pressure fields to demonstrate the robust modeling results of the cylindrical SPH.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2019 ASME. This is an author produced version of a paper subsequently published in Journal of Fluids Engineering. Uploaded in accordance with the publisher's self-archiving policy. |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Civil and Structural Engineering (Sheffield) |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 31 Jan 2019 15:08 |
Last Modified: | 30 Jan 2020 01:38 |
Published Version: | https://doi.org/10.1115/1.4042369 |
Status: | Published |
Publisher: | American Society of Mechanical Engineers |
Refereed: | Yes |
Identification Number: | 10.1115/1.4042369 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:141859 |