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Fluid-Structure Interaction Analysis...

Pappas, Kyle,

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Fluid-Structure Interaction Analysis of an Oscillating Wave Surge Energy Converter Using LS-Dyna /

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Fluid-Structure Interaction Analysis of an Oscillating Wave Surge Energy Converter Using LS-Dyna // Kyle Pappas.
作者:	Pappas, Kyle,
面頁冊數:	1 electronic resource (86 pages)
附註:	Source: Masters Abstracts International, Volume: 85-08.
Contained By:	Masters Abstracts International85-08.
標題:	Engineering. -
電子資源:	https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=30817846
ISBN:	9798381721539

Fluid-Structure Interaction Analysis of an Oscillating Wave Surge Energy Converter Using LS-Dyna /
Pappas, Kyle,

Fluid-Structure Interaction Analysis of an Oscillating Wave Surge Energy Converter Using LS-Dyna /Kyle Pappas. - 1 electronic resource (86 pages)

Source: Masters Abstracts International, Volume: 85-08.

Three-Dimensional two-way coupled fluid structure interaction analysis requires a complex strategy utilizing the finite element method (FEM) for large matrix computations. Two FEM solvers in LS Dyna are utilized to conduct a structural analysis of the Hawai'i Wave Surge Energy Converter (HAWSEC) for a particular wave condition case study that is directly compared with experimental results. The HAWSEC is a hollow, surface piercing, bottom secured, flap type oscillating wave surge energy converter designed for nearshore applications. The Arbitrary Lagrangian Eulerian (ALE) solver produces high fidelity solutions utilizing an explicit solver to couple structural mechanics with the fluid domain. The Incompressible Computational Fluid Dynamics (ICFD) solver utilizes an implicit solver with larger timesteps, making use of a Newton loop to converge the structural part with the fluid part. While both solvers accurately produce the force and pitch angle of the flap, the ICFD solver stands out for its low computation time, and ease of modeling the FSI boundary. Leakage control issues in the ALE simulations are addressed to adequately contain most of the air inside of the flap. Applying a plastic kinematic material to the aluminum flap allows for stress and strain contours to be observed in either solver. While intuitive stress and strain contours are observed in the ICFD simulations, the ALE simulations present questionable results that may require further refinement in leakage control. It is therefore suggested to use the ICFD solver for this type of problem where the structure is hollow and very small time steps are not necessary. Utilizing accurate two-way coupled FSI simulations may streamline design processes for wave energy converter technology, reducing development costs, allowing for faster optimizations, and increasing reliability of the structure.

English

ISBN: 9798381721539Subjects--Topical Terms:

586835
Engineering.
Subjects--Index Terms:

Finite element method

Fluid-Structure Interaction Analysis of an Oscillating Wave Surge Energy Converter Using LS-Dyna /
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520 $a Three-Dimensional two-way coupled fluid structure interaction analysis requires a complex strategy utilizing the finite element method (FEM) for large matrix computations. Two FEM solvers in LS Dyna are utilized to conduct a structural analysis of the Hawai'i Wave Surge Energy Converter (HAWSEC) for a particular wave condition case study that is directly compared with experimental results. The HAWSEC is a hollow, surface piercing, bottom secured, flap type oscillating wave surge energy converter designed for nearshore applications. The Arbitrary Lagrangian Eulerian (ALE) solver produces high fidelity solutions utilizing an explicit solver to couple structural mechanics with the fluid domain. The Incompressible Computational Fluid Dynamics (ICFD) solver utilizes an implicit solver with larger timesteps, making use of a Newton loop to converge the structural part with the fluid part. While both solvers accurately produce the force and pitch angle of the flap, the ICFD solver stands out for its low computation time, and ease of modeling the FSI boundary. Leakage control issues in the ALE simulations are addressed to adequately contain most of the air inside of the flap. Applying a plastic kinematic material to the aluminum flap allows for stress and strain contours to be observed in either solver. While intuitive stress and strain contours are observed in the ICFD simulations, the ALE simulations present questionable results that may require further refinement in leakage control. It is therefore suggested to use the ICFD solver for this type of problem where the structure is hollow and very small time steps are not necessary. Utilizing accurate two-way coupled FSI simulations may streamline design processes for wave energy converter technology, reducing development costs, allowing for faster optimizations, and increasing reliability of the structure.
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590 $a School code: 0085
650 4 $a Engineering. $3 586835
650 4 $a Energy. $3 876794
650 4 $a Fluid mechanics. $3 528155
653 $a Finite element method
653 $a Fluid dynamics
653 $a Fluid structure interaction
653 $a Renewable energy
653 $a Wave energy converter
690 $a 0537
690 $a 0791
690 $a 0204
710 2 $a University of Hawai'i at Manoa. $b Ocean & Resources Engineering. $e degree granting institution. $3 3823904
720 1 $a Gedikli, Ersegun Deniz $e degree supervisor.
773 0 $t Masters Abstracts International $g 85-08.
790 $a 0085
791 $a M.S.
792 $a 2023
856 4 0 $u https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=30817846