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Smoothed particle hydrodynamics appl...

Paredes, Ruben J.

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Smoothed particle hydrodynamics applied to fluid structure interaction problems involving hydroelastic response.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Smoothed particle hydrodynamics applied to fluid structure interaction problems involving hydroelastic response./
作者:	Paredes, Ruben J.
面頁冊數:	181 p.
附註:	Source: Dissertation Abstracts International, Volume: 74-11(E), Section: B.
Contained By:	Dissertation Abstracts International74-11B(E).
標題:	Ocean engineering. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3568502
ISBN:	9781303230417

Smoothed particle hydrodynamics applied to fluid structure interaction problems involving hydroelastic response.
Paredes, Ruben J.

Smoothed particle hydrodynamics applied to fluid structure interaction problems involving hydroelastic response. - 181 p.

Source: Dissertation Abstracts International, Volume: 74-11(E), Section: B.

Thesis (Ph.D.)--Stevens Institute of Technology, 2013.

This item must not be sold to any third party vendors.

The objective of this investigation is to gain an improved understanding about the hydromechanics of the fluid-structure interaction (FSI) between a free-surface disturbance and a deformable membrane. This study is motivated by the problem involving the interaction between a Surface Effect Ship (SES) skirt advancing with forward speed on a free surface.

ISBN: 9781303230417Subjects--Topical Terms:

660731
Ocean engineering.

Smoothed particle hydrodynamics applied to fluid structure interaction problems involving hydroelastic response.
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100 1 $a Paredes, Ruben J. $3 3175776
245 1 0 $a Smoothed particle hydrodynamics applied to fluid structure interaction problems involving hydroelastic response.
300 $a 181 p.
500 $a Source: Dissertation Abstracts International, Volume: 74-11(E), Section: B.
500 $a Adviser: Leonard Imas.
502 $a Thesis (Ph.D.)--Stevens Institute of Technology, 2013.
506 $a This item must not be sold to any third party vendors.
506 $a This item must not be added to any third party search indexes.
520 $a The objective of this investigation is to gain an improved understanding about the hydromechanics of the fluid-structure interaction (FSI) between a free-surface disturbance and a deformable membrane. This study is motivated by the problem involving the interaction between a Surface Effect Ship (SES) skirt advancing with forward speed on a free surface.
520 $a Results are presented for five problems; (i) the tank-sloshing problem was studied while considering a water-only single phase to validate the accuracy of the impact load predictions on rigid walls; numerical predictions are compared to results of Delorme et al. (2009). (ii) The three-dimensional flexible gate problem, as described by Antoci et al. (2007), was considered to validate the effectiveness of the developed FSI coupling formulation. Furthermore, (iii) the 2D SES geometry was modeled and the dynamics of the deflected seal were compared to experimental results published by Zalek and Doctors (2010). In all the cases, good quantitative agreement to experimental measurements was obtained. For the validation of the multiphase SPH formulation (iv) a sloshing tank problem was used to assess the influence of the gas phase in the estimation of the loads on tank walls. Finally, (v) an idealized three-dimensional SES using flexible seals was considered to demonstrate the ability of the developed tool to handle a real SES geometry.
520 $a The numerical studies were performed using a hydrodynamic solver developed around an SPH algorithm that simultaneously models both the fluid dynamics and structural dynamics with a two-way fluid-structure coupling. The coupling is made by 'wrapping' the solid with a 'skin' particle layer that exerts a repulsive force using a modified version of the formulation proposed by Kajtar and Monaghan (2009), thus allowing arbitrary geometries to be modeled. The multiphase SPH model handle flows with high-density ratio given the importance of air cushion effect in the SES dynamics. The method developed in this investigation extends a pressure-entropy formulation proposed by Hopkins (2012) and used for cosmological mixing problems with contact discontinuities. This scheme makes use of an alternative definition of the particle volume without explicitly containing the mass density, increasing the stability of the scheme and reducing the computational time.
590 $a School code: 0733.
650 4 $a Ocean engineering. $3 660731
650 4 $a Naval engineering. $3 3173824
690 $a 0547
690 $a 0468
710 2 $a Stevens Institute of Technology. $b Schaefer School of Engineering & Science. $3 3175777
773 0 $t Dissertation Abstracts International $g 74-11B(E).
790 $a 0733
791 $a Ph.D.
792 $a 2013
793 $a English
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3568502