The 12th International Conference on Hydrodynamics
18 – 23 september 2016, Egmond aan Zee, The Netherlands
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NUMERICAL ANALYSIS OF MEAN DRIFT FORCE ON FLEXIBLE BARGE IN HEAD SEA


Go-down ichd2016 Tracking Number 64

Presentation:
Session: Fluid structural inter-actions II
Room: Room 4
Session start: 14:00 Mon 19 Sep 2016

Dong-Min Park   foster@snu.ac.kr
Affifliation: Seoul National University

Jung-Hyun Kim   wowplusme@snu.ac.kr
Affifliation: Seoul National University

Yonghwan Kim   yhwankim@snu.ac.kr
Affifliation: Seoul National University


Topics: - Ship hydrodynamics resistance, propulsion, powering, seakeeping, manoeuvrability, slamming, sloshing, impact, green water, - Fluid-structural interactions and hydroelasticity

Abstract:

A fully-coupled fluid-structure interaction model is applied to analyze mean drift force of flexible barge in head sea. To analyze motion and mean drift force of flexible barge, a domain is decomposed into two subdomains: a fluid domain and a structural domain. The fluid domain is solved by a time domain B-spline 3-D Rankine panel method. The structural domain is modelled using a shell-element-based 3-D FEM. In the computation of drift force, a near-field method is applied; it is extended from the rigid body to the flexible body. As a test model, the Remy barge model is used. The flexible motion of numerical model is compared with experimental data for validation. The drift force of flexible barge is just compared with that of the rigid barge. The mean drift force of flexible barge decreased than that of rigid. Based on the difference of drift force between rigid and flexible bodies, the reason of the decrease of drift force is studied.