MARC보기
LDR02935nmm uu200481 4500
001000000333125
00520240805172235
008181129s2018 |||||||||||||||||c||eng d
020 ▼a 9780438324275
035 ▼a (MiAaPQ)AAI10812590
035 ▼a (MiAaPQ)berkeley:17763
040 ▼a MiAaPQ ▼c MiAaPQ ▼d 248032
0820 ▼a 621
1001 ▼a Gutierrez, David Fernandez.
24510 ▼a Delta Voronoi Smoothed Particle Hydrodynamics, delta-VSPH.
260 ▼a [S.l.] : ▼b University of California, Berkeley., ▼c 2018
260 1 ▼a Ann Arbor : ▼b ProQuest Dissertations & Theses, ▼c 2018
300 ▼a 173 p.
500 ▼a Source: Dissertation Abstracts International, Volume: 80-01(E), Section: B.
500 ▼a Adviser: Tarek I. Zohdi.
5021 ▼a Thesis (Ph.D.)--University of California, Berkeley, 2018.
520 ▼a A Lagrangian scheme that combines Voronoi diagrams with smoothed particle hydrodynamics (SPH) for incompressible flows has been developed. Within the Voronoi tessellation, the differential operators are discretized by adding contributions from n
520 ▼a The Voronoi cells allow enforcing the boundary conditions directly on the portion of their perimeter in contact with the boundary. Two sub-domains are then defined based on the proximity to the boundaries. The VPH formulation is used in those pa
520 ▼a The unbounded nature of Voronoi tessellations requires further treatment close to boundaries and free-surfaces to ensure that the Voronoi cells associated with the particles do not extend beyond the fluid domain. Boundaries are discretized as se
520 ▼a The delta-SPH correction proposed by Cercos-Pita et al., Applied Math. Modelling, 40(19), 2016, is extended to the VPH formulation. In addition, the density field is reinitialized every certain number of time steps following the scheme proposed
520 ▼a The code key subroutines are written in C++, and the main time-stepping program is implemented in Matlab. A leap-frog numerical scheme is used to iterate forward in time. The program architecture is summarized graphically, with a detailed analys
520 ▼a The method presented in this thesis is suitable for free-surface flows with moving solid boundaries within the fluid domain. However, prior to extending it to such complicate problems, the accuracy of the coupled scheme is discussed by means of
590 ▼a School code: 0028.
650 4 ▼a Mechanical engineering.
650 4 ▼a Ocean engineering.
650 4 ▼a Fluid mechanics.
690 ▼a 0548
690 ▼a 0547
690 ▼a 0204
71020 ▼a University of California, Berkeley. ▼b Mechanical Engineering.
7730 ▼t Dissertation Abstracts International ▼g 80-01B(E).
773 ▼t Dissertation Abstract International
790 ▼a 0028
791 ▼a Ph.D.
792 ▼a 2018
793 ▼a English
85640 ▼u http://www.riss.kr/pdu/ddodLink.do?id=T14998031 ▼n KERIS
980 ▼a 201812 ▼f 2019
990 ▼a 관리자