Parallel numerical method for compressible flow calculations of hovering rotor flowfields

Jeu Jiun Hu, San-Yih Lin

Research output: Chapter in Book/Report/Conference proceedingChapter

1 Citation (Scopus)

Abstract

A parallel numerical method is developed to study the hovering rotor flowfields. The method solves the compressible Navier-Stokes equations. It uses a third-order upwind finite-volume scheme for discretizing the convective terms and a second-order central finite-volume scheme for discretizing the viscous terms. A DDADI time integration coupling with an implicit residual smoothing is used for achieving fast convergence. Two types of numerical formulas by using the relative and absolute velocity as flow variables in a non-inertial reference frames are introduced and discussed. The numerical simulations are performed for a two-blade rotor on periodic 0 - 0 grid topologies for non-lifting and lifting rotors. Computational solutions show good agreement with the experiment data. All of the simulations are calculated on the 8-nodes PC cluster environment by using MPL The multi-zone technique and data passing between processors are investigated. It is shown that the efficient is about 7.2 4 .

Original languageEnglish
Title of host publicationParallel Computational Fluid Dynamics 2002
Subtitle of host publicationNew Frontiers and Multi-Disciplinary Applications
PublisherElsevier Inc.
Pages297-304
Number of pages8
ISBN (Electronic)9780080538426
ISBN (Print)9780444506801
DOIs
Publication statusPublished - 2003 Apr 25

Fingerprint

Parallel Methods
Compressible Flow
Rotor
Flow Field
Finite Volume Scheme
Numerical Methods
Central Schemes
PC Cluster
Upwind Scheme
Compressible Navier-Stokes Equations
Term
Time Integration
Blade
Smoothing
Grid
Topology
Numerical Simulation
Vertex of a graph
Experiment
Simulation

All Science Journal Classification (ASJC) codes

  • Mathematics(all)

Cite this

Hu, J. J., & Lin, S-Y. (2003). Parallel numerical method for compressible flow calculations of hovering rotor flowfields. In Parallel Computational Fluid Dynamics 2002: New Frontiers and Multi-Disciplinary Applications (pp. 297-304). Elsevier Inc.. https://doi.org/10.1016/B978-044450680-1/50038-3
Hu, Jeu Jiun ; Lin, San-Yih. / Parallel numerical method for compressible flow calculations of hovering rotor flowfields. Parallel Computational Fluid Dynamics 2002: New Frontiers and Multi-Disciplinary Applications. Elsevier Inc., 2003. pp. 297-304
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Hu, JJ & Lin, S-Y 2003, Parallel numerical method for compressible flow calculations of hovering rotor flowfields. in Parallel Computational Fluid Dynamics 2002: New Frontiers and Multi-Disciplinary Applications. Elsevier Inc., pp. 297-304. https://doi.org/10.1016/B978-044450680-1/50038-3

Parallel numerical method for compressible flow calculations of hovering rotor flowfields. / Hu, Jeu Jiun; Lin, San-Yih.

Parallel Computational Fluid Dynamics 2002: New Frontiers and Multi-Disciplinary Applications. Elsevier Inc., 2003. p. 297-304.

Research output: Chapter in Book/Report/Conference proceedingChapter

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AB - A parallel numerical method is developed to study the hovering rotor flowfields. The method solves the compressible Navier-Stokes equations. It uses a third-order upwind finite-volume scheme for discretizing the convective terms and a second-order central finite-volume scheme for discretizing the viscous terms. A DDADI time integration coupling with an implicit residual smoothing is used for achieving fast convergence. Two types of numerical formulas by using the relative and absolute velocity as flow variables in a non-inertial reference frames are introduced and discussed. The numerical simulations are performed for a two-blade rotor on periodic 0 - 0 grid topologies for non-lifting and lifting rotors. Computational solutions show good agreement with the experiment data. All of the simulations are calculated on the 8-nodes PC cluster environment by using MPL The multi-zone technique and data passing between processors are investigated. It is shown that the efficient is about 7.2 4 .

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Hu JJ, Lin S-Y. Parallel numerical method for compressible flow calculations of hovering rotor flowfields. In Parallel Computational Fluid Dynamics 2002: New Frontiers and Multi-Disciplinary Applications. Elsevier Inc. 2003. p. 297-304 https://doi.org/10.1016/B978-044450680-1/50038-3