## Parallel Computational Fluid Dynamics 2007: Implementations and Experiences on Large Scale and Grid ComputingIsmail H. Tuncer, Ülgen Gülcat, David R. Emerson, Kenichi Matsuno At the 19th Annual Conference on Parallel Computational Fluid Dynamics held in Antalya, Turkey, in May 2007, the most recent developments and implementations of large-scale and grid computing were presented. This book, comprised of the invited and selected papers of this conference, details those advances, which are of particular interest to CFD and CFD-related communities. It also offers the results related to applications of various scientific and engineering problems involving flows and flow-related topics. Intended for CFD researchers and graduate students, this book is a state-of-the-art presentation of the relevant methodology and implementation techniques of large-scale computing. |

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### Contents

1 | |

9 | |

Experience in Parallel Computational Mechanics on MareNostrum | 19 |

New Approaches to Modeling Rarefied Gas Flow in the Slip and Transition Regime | 29 |

Aerodynamic Shape Optimization Methods on Multiprocessor Platforms | 49 |

NonSinusoidal Path Optimization of Dual Airfoils Flapping in a Biplane Conﬁguration | 59 |

Parallel Computation of 3D Viscous Flows on Hybrid Grids | 67 |

Efficient Parallel Algorithm for Multiconstrained Optimization of WingBody Configurations | 83 |

Separate Treatment of Momentum and Heat flows in Parallel Environment | 261 |

DNS of Turbulent Natural Convection Flows on the MareNostrum supercomputer | 267 |

A New Parallel Unstructured CFD code for the Simulation of Turbulent Industrial Problems on Low cost PC Cluster | 275 |

Schur Complement Methods for the Solution of Poisson Equation with Unstructured Meshes | 283 |

A Lattice Boltzmann Application in Medical Physics | 291 |

Unsteady Navier Stokes Solutions of Low Aspect Ratio Rectangular Flat Wings in Compressible Flow | 297 |

Case Studies of Solving LargeScale CFD Problems by Means of the GasDynamicsTool Software Package | 305 |

Direct Monte Carlo Simulation of LowSpeed Flows | 313 |

Parallel Three Dimensional Direct Simulation Monte Carlo for Simulating Micro Flows | 91 |

A Study on the Prediction of the Aerodynamic Characteristics of an Orbital Block of a Launch Vehicle in the Rarefied Flow Regime Using the DSMC... | 99 |

Problem Parallel Solution of a 3D Mixed Convection | 107 |

Computation of Hypersonic Flow of a Diatomic Gas in Rotational NonEquilibrium Past a Blunt Body Using the Generalized Boltzmann Equation | 115 |

Application of Parallel Processing to Numerical Modeling of TwoPhase DeflagrationtoDetonation DDT Phenomenon | 123 |

Highly Scalable Multiphysics Computational Framework for Propulsive Energetic Systems | 131 |

A Parallel AitkenAdditive Schwarz Waveform Relaxation Method for Parabolic Problems | 139 |

Parallel Computation of Incompressible Flows Driven by Moving Multiple Obstacles Using a New Moving EmbeddedGrid Method | 147 |

Parallel Computing on Network of Windows Based PCs | 155 |

Parallel Computations of Droplet Oscillations | 163 |

Cyclic Distribution of Pipelined Parallel Deferred Correction Method for ODEDAE | 171 |

Hybrid Parallelization Techniques for Lattice Boltzmann Free Surface Flows | 179 |

FlowStructure Interaction and Flow Analysis of Hydraulic Machinery on a Computational Grid | 187 |

Parallel Computation of Incompressible Flow Using BuildingCube Method | 195 |

3D Model of Pollution Distribution in City Air and its Parallel Realization | 201 |

Parallel NavierStokes Solutions of a WingFlap Configuration on Structures MultiBlock Oversetting Grids | 208 |

Parallel NavierStokes Solutions of NASA 65 DeltaWing | 217 |

Parallel Turbulent NavierStokes Solutions of Wing Alone Geometries for Drag Prediction | 227 |

Adaptive AitkenSchwarz for Darcy 3D Flow on Heterogeneous Media | 236 |

Numerical Simulation of Compressible Flow using ThreeDimensional Unstructured AddedEliminated Grid Method | 245 |

Technology of Parallelization for 2D and 3D CFDCAA Codes based on HighAccuracy Explicit Methods on Unstructured Meshes | 253 |

Parallel Computing of 3D Separated Stratified Fluid Flows Around a Sphere | 321 |

Cpqj Scheme with Adaptive Time Step and Asynchronous Communications | 329 |

Parallel Coupling of Heterogeneous Domains with KOP3D using PACXMPI | 339 |

Numerical Simulation of 3D Turbulent Flows Around Bodies Subjected to VortexInduced and Forced vibration | 346 |

Parallel Simulation of Type IIa Supernovae Explosions Using a Simplified Physical Model | 355 |

A Fast Parallel Blood Flow Simulator | 363 |

Parallel Simulation of Flows in Porous Media Using adaptive LocallyRefined Meshes | 371 |

Performance Evaluation of Two Parallel Direct Sparse Solvers for an Aeroacoustic Propagation Model | 379 |

Three Dimensional Smoke Simulation on Programmable Graphics Hardware | 385 |

An Approach for Parallel CFD Solutions of Store Separation Problems | 393 |

Combining MPI with OpenMP | 401 |

Impact of the TeraGrid on LargeScale Simulations and Visualizations | 409 |

Parallel CFD Simulations of Unsteady Control Maneuver Aerodynamics | 417 |

Parallel Solution of Flows with High Velocity andor Enthalpy Gradients | 425 |

Numerical Simulation of Transonic Flows by a Flexible and Parallel Evolutionary Computation | 433 |

Prediction of Ballistic Separation Effect by Direct Calculation of Incremental Coefficients | 441 |

Parallel Implementation of a GasKinetic BGK Method on Unstructured Grids for 3D Inviscid Missile Flows | 448 |

3D TimeAccurate Inviscid and Viscous CFD Simulations of Wind Turbine Rotor Flow Fields | 457 |

Modeling a Web ServiceBased Decentralized Parallel Programming Environment | 465 |

Computation of Unsteady Hovering Flapping Motion in Parallel Environment | 473 |

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### Common terms and phrases

aeroacoustic aerodynamic AIAA Paper airfoil algorithm angle of attack application Berlin Heidelberg 2009 block Boltzmann boundary conditions boundary layer calculation cells coeﬃcient coefficients communication Computational Fluid Dynamics conﬁguration control volume density diﬀerent discretization distribution domain decomposition Domain Decomposition Methods droplet DSMC eﬀects eﬃciency Engineering ﬁeld Figure ﬁrst ﬂapping ﬂow flow solver ﬂuid Fluid Dynamics 2007 function geometry hybrid I.H. Tuncer implemented incompressible interface inviscid iteration linear load balancing Mach number MareNostrum matrix Navier-Stokes equations nodes number of processors numerical simulation obtained OpenMP optimization Parallel CFD Parallel Computational Parallel Computational Fluid parallel processing particles partitioning performance Poisson equation pressure problem projectile Reynolds number scalability scheme Schur complement shown solution solved speed speedup Springer-Verlag Berlin Heidelberg step structure subdomain technique temperature TeraGrid three-dimensional turbulence model unsteady unstructured grids variables vector velocity viscous vortex vortices wing