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检索条件"任意字段=26th International Conference on Parallel Computational Fluid Dynamics, ParCFD 2013"

共 26 条记录，以下是1-10 订阅

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26th international conference on parallel computational fluid dynamics, parcfd 2013

26th International Conference on Parallel Computational Flui...

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26th international conference on parallel computational fluid dynamics, parcfd 2013

ISBN: (纸本)9783642539619

the proceedings contain 54 papers. the special focus in this conference is on parallel computational fluid dynamics. the topics include: Simulation study of solidification processes for a large scale system of liquid metal al;solving seven-equation model of compressible two-phase flow using CUDA-GPU;parallel solver for hypersonic flow based on block-structured grid;medical image clustering algorithm based on graph model;the pressure buildup and salt precipitation during CO2 storage in closed saline aquifers;numerical simulation of the effects of N2 on the solubility trapping mechanism of CO2;implementation of the six temperature kinetic model of gasdynamic laser in openFOAM;the implementation of mapreduce scheduling algorithm based on priority;efficient parallel multi-way merging on heterogeneous multi-core cluster;an offline scheduling algorithm for certifiable mixed-critical embedded system;parallelization of a DEM code based on CPU-GPU heterogeneous architecture;GPU parallelization of unstructured/hybrid grid ALE multi-grid solver for moving bodies;the analysis of pile cap hydrodynamic added mass considering the chamfer;numerical simulations for DLR-F6 wing/body/nacelle/pylon with enhanced implicit hole cutting method;large-scale parallelization based on CPU and GPU cluster for cosmological fluid simulations;large eddy simulation of a rectangular lobed mixer;a high-order weighted essentially non-oscillatory schemes for solving Euler equations on unstructured meshes;unified computational aeroacoustic integral methods for noise radiation and scattering with noncompact bodies;flow characteristics of gas-liquid phase in new type of umbrella plate scrubber;three-dimensional aeroacoustic numerical simulation of flow induced noise of mufflers;dynamic slack reclamation with EDL scheduling for periodic multimode real-time task;modeling of the pressure variation during the inflation process of unsteady time-pressure dispensing;recursive Kernighan-Lin algorithm (RKL) scheme

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parallel computational fluid dynamics: 25th international conference, parcfd 2013 Changsha, China, May 20-24, 2013 Revised Selected Papers

Parallel computational fluid dynamics: 25th International Co...

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26th international conference on parallel computational fluid dynamics, parcfd 2013

作者： Li, Kenli Xiao, Zheng Wang, Yan Du, Jiayi Li, Keqin Hunan University College of Information Science and Engineering Changsha China State University of NewYork at New Paltz NY United States Hunan University Changsha China

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parallel computational fluid dynamics: 25th international conference, parcfd 2013, Changsha, China, May 20-24, 2013. Revised Selected Papers 1

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丛书名： Communications in Computer and Information Science 405

2014年

作者： Kenli Li, Zheng Xiao, Yan Wang, Jiayi Du, Keqin Li (eds.)

ISBN: (数字)9783642539626

ISBN: (纸本)9783642539619;9783642539626

this book constitutes the refereed proceedings of the 25th international conference on parallel computational fluid dynamics, parcfd 2013, held in Changsha, China, in May 2013. the 35 revised full papers presented were carefully reviewed and selected from more than 240 submissions. the papers address issues such as parallel algorithms, developments in software tools and environments, unstructured adaptive mesh applications, industrial applications, atmospheric and oceanic global simulation, interdisciplinary applications and evaluation of computer architectures and software environments.

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Efficient parallel multi-way merging on heterogeneous multi-core cluster

Efficient parallel multi-way merging on heterogeneous multi-...

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26th international conference on parallel computational fluid dynamics, parcfd 2013

作者： Zhong, Cheng Wei, Wei School of Computer and Electronics and Information Guangxi University Nanning Guangxi 530004 China

ISBN: (纸本)9783642539619

Data merging and sorting are often applied to the scientific and engineering applications such as computational fluid dynamics and computation geometry. By constructing a data sending matrix, solving the data exchange range and determining the data exchange order among compute nodes to reduce the communication overhead, this paper proposes a load-balance data distribution strategy among nodes, and designs a communication-efficient parallel multi-way merging algorithm on the heterogeneous cluster with the multi-core compute nodes which have different computation speed, communication rate and memory capacity. the experimental results on the heterogeneous cluster with multi-core machines show that the proposed parallel merging algorithm obtains high speedup and has good scalability. © Springer-Verlag Berlin Heidelberg 2014.

关键词： Merging

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parallel direct simulation Monte Carlo using graphics processing unit with CUDA

Parallel direct simulation Monte Carlo using graphics proces...

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26th international conference on parallel computational fluid dynamics, parcfd 2013

作者： Liang, Jie Hunan University College of Information Science and Engineering Changsha 410082 China

ISBN: (纸本)9783642539619

the direct simulation Monte Carlo is a particle-based computational method for rarefied gas flows. It is a method to solve numerically Boltzmann equation with satisfied result. However, there exist two issues to be solved in DSMC simulation, including complex grids processing and large calculated amount. therefore, finding available computing resources is crucial to optimize and accelerate computation of DSMC. In this paper we investigate data-parallel techniques on graphics processing unit (GPU) to calculate DSMC simulation of dynamic collision grids. We have evaluated and verified the statistical and theoretical accuracy of our implementation. © Springer-Verlag Berlin Heidelberg 2014.

关键词： Graphics processing unit

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parallelization of the local mesh refinement on multi-core CPU

Parallelization of the local mesh refinement on multi-core C...

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26th international conference on parallel computational fluid dynamics, parcfd 2013

作者： Chen, Hang Ye, Yu Lin, Ren Hunan University College of Information Science and Engineering Changsha 410082 China Hunan City University College of Mathematics and Computational Science Yiyang 413002 China

ISBN: (纸本)9783642539619

this contribution presents the characteristics of three methods of the lattice Boltzmann local mesh refinement algorithms: Filippova-Hänel (FH), Lin-Lai (LL) and Dupuis-chopard (DC). thus large-scale flow features can be resolved efficiently at a relatively low cost. At a later time, the parallel algorithms are presented. As a demonstration,the lid-driven cavity flow is selected for study in the C++ project using OpenMP. the results show that the DC method has the better accuracy and efficiency. © Springer-Verlag Berlin Heidelberg 2014.

关键词： Mesh generation

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parallel computation of shaped charge jet formation and penetration by multi-material Eulerian method

Parallel computation of shaped charge jet formation and pene...

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26th international conference on parallel computational fluid dynamics, parcfd 2013

作者： Ma, Tianbao Xu, Xiangzhao Ning, Jianguo State Key Laboratory of Explosion Science and Technology Beijing Institute of Technology Beijing 100081 China

ISBN: (纸本)9783642539619

A parallel version of the PMMIC-3D hydrocode using message passing interface (MPI) standard was developed based on multi-material Eulerian methods which are more suitable for solving elastoplastic hydrodynamics. the data dependence associated with Eulerian methods was investigated for PMMIC-3D parallel hydrocode. By studying the shaped charge jet as useful and practical numerical example, the speedup of the parallel hydrocode was tested with a cluster consisting of 64 cores. Furthermore, the bottlenecks of the parallel hydrocode were analyzed. At last, numerical results of jet formation and penetration show the capability of PMMIC-3D parallel hydrocode in dealing with large scale complex engineering problems. © Springer-Verlag Berlin Heidelberg 2014.

关键词： Message passing

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A parallel chemical reaction optimization for multiple choice knapsack problem

A parallel chemical reaction optimization for multiple choic...

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26th international conference on parallel computational fluid dynamics, parcfd 2013

作者： Truong, Tung Khac Salah, Ahmad Xu, Yuming Fan, Shuangnan Industrial University of Hochiminh City Hochiminh Viet Nam Department of Computer Science Zagazig University Zagazig Sharkia 44519 Egypt Department of Computer Science Hengyang Normal University Hengyang Hunan 421008 China College of Computer Hunan Science and Technology Economy Trade Vocation College Hengyang Hunan 421001 China

ISBN: (纸本)9783642539619

this research proposed a new parallel algorithm based on chemical reaction optimization for multiple-choice knapsack problem (MCKP). In the proposed algorithm, master-slave parallel architecture is used and four problem-specific chemical reaction operators are suggested. the experimental results have proven the superior performance of the proposed algorithm compared to the basic chemical reaction optimization. © Springer-Verlag Berlin Heidelberg 2014.

关键词： Combinatorial optimization

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An efficient implementation of Entropic Lattice Boltzmann method in a hybrid CPU-GPU computing environment

An efficient implementation of Entropic Lattice Boltzmann me...

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26th international conference on parallel computational fluid dynamics, parcfd 2013

作者： Ye, Yu Chi, Peng Wang, Yan Hunan University College of Information Science and Engineering Changsha 410082 China National Supercomputing Center of Changsha Hunan University Office Changsha 410082 China

ISBN: (纸本)9783642539619

In the high performance computing market, CPU-GPU hybrid computing is gradually becoming the tendency. Entropic Lattice Boltzmann method(ELBM) parallelization, like many parallel algorithms in the field of rapid scientific and engineering computing, has given rise to much attention for applications of computational fluid dynamics. this paper presents an efficient implementation of ELBM for a D3Q19 lattice Boltzmann flow simulation in a hybrid CPU-GPU computing environment, which is consisted of AMD multicore CPU with NVIDIA graphics processors unit (GPU). To overcome the GPU memory size limitation and communication overhead, we propose a set of techniques that can be used to develop efficient ELBM algorithms for the hybrid system. Considering that the respective contributions of CPU versus GPU and the lattice scale of application, the optimal load balancing model is built. these approaches result in an efficient implementation with balanced use of multi-core processor and a graphics processor based on software framework OpenMP and CUDA. Finally, we show that the comparison of performance results using both CPU and GPU with using either a CPU core or a GPU. © Springer-Verlag Berlin Heidelberg 2014.

关键词： computational fluid dynamics

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A grid reordering technique for hybrid unstructured flow solver based on OpenMP parallel environment

A grid reordering technique for hybrid unstructured flow sol...

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26th international conference on parallel computational fluid dynamics, parcfd 2013

作者： Cheng, Meng Wang, Gang Hameed Mian, Haris National Key Laboratory of Science and Technology on Aerodynamic Design and Research School of Aeronautics Northwestern Polytechnical University Xi'an 710072 China

ISBN: (纸本)9783642539619

Grid reordering is an efficient way to obtain better implicit convergence acceleration in viscous flow simulation based on unstructured hybrid grids, whose data storage is usually random. To improve the matrix quality of the implicit LU-SGS time-stepping scheme and the compatibility of the numerical schemes and OpenMP parallel environment, a grid reordering method for unstructured hybrid grids is proposed. In this method, the structured grids in the viscous layer near-body surface are reordered along the normal direction (like columns) while the unstructured parts are reordered layer by layer in accordance with the neighboring relations. To investigate the performance of the current implementation, 2D and 3D turbulent flows around the RAE2822 airfoil, DLR-F6 wing-body configuration and an aerospace plane are simulated on unstructured hybrid grids. the numerical results show that the grid reordering method is an efficient strategy for improving the convergence rate and the overall efficiency of the flow solver. © Springer-Verlag Berlin Heidelberg 2014.

关键词： computational fluid dynamics

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