Numerical and experimental study on free-surface wave generation by a submerged moving body in a towing tank

Seong, Woo-Jin; Koo, Weoncheol; Min, Eun-Hong

doi:10.1016/j.oceaneng.2022.111200

Cited by 3 publications

(3 citation statements)

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“…While the cylindrical submerged body was accelerated from the stationary state and subjected to the constant-velocity translational motion in the same manner as the experimental conditions, the displacement and propagation pattern of the free surface were calculated in the time domain. The two-dimensional numerical towing tank was detailed in previous works (Seong et al, 2022;Kim et al, 2022b). It was briefly described in this paper because the accuracy and reliability of the solution were verified.…”

Section: Two-dimensional Numerical Towing Tankmentioning

confidence: 99%

“…In particular, time-and frequency-domain analysis for floating body motion has been widely conducted via modeling under the same conditions as an experimental tank through the numerical wave tank (NWT) technique (Uzair and Koo, 2012;Min and Koo, 2017;Min and Koo, 2022). This numerical analysis technique was used to model the motion of a submerged body and calculate free surface waves according to the submerged depth and velocity of the submerged body (Holloway and Davis, 2002;Kim et al, 2019;Seong et al, 2022). In particular, Seong et al (2022) reproduced the free surface waves caused by the motion of a submerged body with a National Advisory Committee for Aeronautics geometry (NACA0034) using the NWT technique and validated their method through a comparison with experimental results.…”

mentioning

confidence: 99%

“…This numerical analysis technique was used to model the motion of a submerged body and calculate free surface waves according to the submerged depth and velocity of the submerged body (Holloway and Davis, 2002;Kim et al, 2019;Seong et al, 2022). In particular, Seong et al (2022) reproduced the free surface waves caused by the motion of a submerged body with a National Advisory Committee for Aeronautics geometry (NACA0034) using the NWT technique and validated their method through a comparison with experimental results.…”

mentioning

confidence: 99%

See 2 more Smart Citations

Experimental and Numerical Study on the Characteristics of Free Surface Waves by the Movement of a Circular Cylinder-Shaped Submerged Body in a Single Fluid Layer

Kim¹,

Min²,

Koo³

2023

J. Ocean Eng. Technol.

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Analyzing the interactions of free surface waves caused by a submerged-body movement is important as a fundamental study of submerged-body motion. In this study, a two-dimensional mini-towing tank was used to tow an underwater body for analyzing the generation and propagation characteristics of free surface waves. The magnitude of the maximum wave height generated by the underwater body motion increased with the body velocity at shallow submerged depths but did not increase further when the generated wave steepness corresponded to a breaking wave condition. Long-period waves were generated in the forward direction as the body moved initially, and then short-period waves were measured when the body moved at a constant velocity. In numerical simulations based on potential flow, the fluid pressure changes caused by the submerged-body motion were implemented, and the maximum wave height was accurately predicted; however, the complex physical phenomena caused by fluid viscosity and wave breaking in the downstream direction were difficult to implement. This research provides a fundamental understanding of the changes in the free surface caused by a moving underwater body.

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Section: Two-dimensional Numerical Towing Tankmentioning

confidence: 99%