Original scientific paper
https://doi.org/10.21278/brod72406
FEASIBILITY STUDY ON EFFECT OF STRUCTURAL FLEXIBILITY OF ASYMMETRIC PRE-SWIRL STATOR ON PROPULSION PERFORMANCE FOR KRISO CONTAINER SHIP (KCS)
Jin Gu Kang
; Department of Naval Architecture and Ocean Engineering, Pusan National University, South Korea
Moon Chan Kim
; Department of Naval Architecture and Ocean Engineering, Pusan National University, South Korea
I Rok Shin
; Department of Naval Architecture and Ocean Engineering, Pusan National University, South Korea
Woo Seok Jin
; Department of Naval Architecture and Ocean Engineering, Pusan National University, South Korea
Abstract
The use of energy-saving devices is the most effective method for decreasing CO2 emissions, which is an increasingly concerning environmental issue. The asymmetric pre-swirl stator has been developed as an energy-saving device and has been successfully applied to various types of vessels. In the present study, a flexible material was applied to an asymmetric pre-swirl stator to determine the variation in the flow around stator and its efficiency. A fluid–structure interaction (FSI) analysis system was developed using the Star-CCM+ (fluid) and the Abaqus (structure). The proposed analysis system was validated by comparing the experimental results using a flexible plate in a flowing fluid. The flexible stator was applied to a 3,600 TEU KRISO Container Ship to determine the improvement in its performance compared to the previous optimum value achieved with a rigid stator. Although this application was conducted on a model scale and the deformation was small, the results of the flexible stator indicated the possibility of not only increasing the efficiency but also decreasing the vortex risk around stator blade.
Keywords
pre-swirl stator (PSS); fluid-structure interaction (FSI); flexible material; energy-saving device (ESD)
Hrčak ID:
267175
URI
Publication date:
1.10.2021.
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