抄録
In this paper we describe parallel computational methods for 3D simulation of the dynamics and fluid dynamics of a parafoil with prescribed, time-dependent shape changes. The mathematical model is based on the time-dependent, 3D Navier-Stokes equations governing the incompressible flow around the parafoil and Newton's law of motion governing the dynamics of the parafoil, with the aerodynamic forces acting on the parafoil calculated from the flow field. The computational methods developed for these 3D simulations include a stabilized space-time finite element formulation to accommodate for the shape changes, special mesh generation and mesh moving strategies developed for this purpose, iterative solution techniques for the large, coupled nonlinear equation systems involved, and parallel implementation of all these methods on scalable computing systems such as the Thinking Machines CM-5. As an example, we report 3D simulation of a flare maneuver in which the parafoil velocity is reduced by pulling down the flaps. This simulation requires solution of over 3.6 million coupled, nonlinear equations at every time step of the simulation.
| 元の言語 | English |
|---|---|
| ページ（範囲） | 1349-1363 |
| ページ数 | 15 |
| ジャーナル | Parallel Computing |
| 巻 | 23 |
| 発行部数 | 9 |
| 出版物ステータス | Published - 1997 9 |
| 外部発表 | Yes |
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ASJC Scopus subject areas
- Theoretical Computer Science
- Software
- Hardware and Architecture
- Computer Networks and Communications
- Computer Graphics and Computer-Aided Design
- Artificial Intelligence
これを引用
Parallel computational methods for 3D simulation of a parafoil with prescribed shape changes. / Tezduyar, Tayfun E.; Kalro, V.; Garrard, W.
：: Parallel Computing, 巻 23, 番号 9, 09.1997, p. 1349-1363.研究成果: Article
}
TY - JOUR
T1 - Parallel computational methods for 3D simulation of a parafoil with prescribed shape changes
AU - Tezduyar, Tayfun E.
AU - Kalro, V.
AU - Garrard, W.
PY - 1997/9
Y1 - 1997/9
N2 - In this paper we describe parallel computational methods for 3D simulation of the dynamics and fluid dynamics of a parafoil with prescribed, time-dependent shape changes. The mathematical model is based on the time-dependent, 3D Navier-Stokes equations governing the incompressible flow around the parafoil and Newton's law of motion governing the dynamics of the parafoil, with the aerodynamic forces acting on the parafoil calculated from the flow field. The computational methods developed for these 3D simulations include a stabilized space-time finite element formulation to accommodate for the shape changes, special mesh generation and mesh moving strategies developed for this purpose, iterative solution techniques for the large, coupled nonlinear equation systems involved, and parallel implementation of all these methods on scalable computing systems such as the Thinking Machines CM-5. As an example, we report 3D simulation of a flare maneuver in which the parafoil velocity is reduced by pulling down the flaps. This simulation requires solution of over 3.6 million coupled, nonlinear equations at every time step of the simulation.
AB - In this paper we describe parallel computational methods for 3D simulation of the dynamics and fluid dynamics of a parafoil with prescribed, time-dependent shape changes. The mathematical model is based on the time-dependent, 3D Navier-Stokes equations governing the incompressible flow around the parafoil and Newton's law of motion governing the dynamics of the parafoil, with the aerodynamic forces acting on the parafoil calculated from the flow field. The computational methods developed for these 3D simulations include a stabilized space-time finite element formulation to accommodate for the shape changes, special mesh generation and mesh moving strategies developed for this purpose, iterative solution techniques for the large, coupled nonlinear equation systems involved, and parallel implementation of all these methods on scalable computing systems such as the Thinking Machines CM-5. As an example, we report 3D simulation of a flare maneuver in which the parafoil velocity is reduced by pulling down the flaps. This simulation requires solution of over 3.6 million coupled, nonlinear equations at every time step of the simulation.
KW - 3D simulation
KW - Parafoil dynamics
KW - Parallel finite elements
KW - Space-time formulation
UR - http://www.scopus.com/inward/record.url?scp=0031222710&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0031222710&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:0031222710
VL - 23
SP - 1349
EP - 1363
JO - Parallel Computing
JF - Parallel Computing
SN - 0167-8191
IS - 9
ER -