<?xml version="1.0" encoding="UTF-8"?><rss version="2.0" xmlns:content="http://purl.org/rss/1.0/modules/content/" xmlns:wfw="http://wellformedweb.org/CommentAPI/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:atom="http://www.w3.org/2005/Atom"><channel>
<title>Technical Sciences Social Network</title>
<language>en-us</language>
<atom:link href="http://techniscience.com/xmlfeeds.php?cmd=popular" rel="self" type="application/rss+xml" /><link>http://techniscience.com/</link>
<description>Technical Sciences Social Network</description>
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<title>Robust active shock control bump design optimisation using hybrid parallel MOGA</title>
<link>http://techniscience.com/stories/39691/Robust_active_shock_control_bump_design_optimisation_using_hybrid_parallel_MOGA.html</link>
<guid>http://techniscience.com/stories/39691/Robust_active_shock_control_bump_design_optimisation_using_hybrid_parallel_MOGA.html</guid><description><![CDATA[The paper investigates a robust optimisation for detail design of active shock control bump on a transonic Natural Laminar Flow (NLF) aerofoil using a Multi-Evolutionary Algorithm (MOEA) coupled to Computational Fluid Dynamics (CFDs) software. For MOEA, Robust Multi-Optimisation Platform (RMOP) d...]]></description>
<pubDate>Thu, 23 May 2013 06:12:19 +0100</pubDate>
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<title>Preprocess static subdomain decomposition in practical cases of 2D unsteady hydraulic simulation</title>
<link>http://techniscience.com/stories/39692/Preprocess_static_subdomain_decomposition_in_practical_cases_of_2D_unsteady_hydraulic_simulation.html</link>
<guid>http://techniscience.com/stories/39692/Preprocess_static_subdomain_decomposition_in_practical_cases_of_2D_unsteady_hydraulic_simulation.html</guid><description><![CDATA[Explicit finite volume methods are frequently used and widely accepted in hydraulic models based on the shallow water approximation. The main drawback of the approach is the time step size limit imposed by the Courantâ€“Friedrichsâ€“Lewy numerical stability constraint. This leads to excessively l...]]></description>
<pubDate>Thu, 23 May 2013 06:12:19 +0100</pubDate>
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<title>Flow dynamics in the turbulent wake of a sphere at sub-critical Reynolds numbers</title>
<link>http://techniscience.com/stories/39693/Flow_dynamics_in_the_turbulent_wake_of_a_sphere_at_subcritical_Reynolds_numbers.html</link>
<guid>http://techniscience.com/stories/39693/Flow_dynamics_in_the_turbulent_wake_of_a_sphere_at_subcritical_Reynolds_numbers.html</guid><description><![CDATA[Direct numerical simulations of the flow over a sphere have been performed. The computations have been carried out in the sub-critical regime at Re =3700 and Re =10,000 (based on the free-stream velocity and the sphere diameter). A parallel unstructured symmetry-preserving formulation has been us...]]></description>
<pubDate>Thu, 23 May 2013 06:12:19 +0100</pubDate>
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<title>Efficient parallel implementation of large scale 3D structured grid CFD applications on the Tianhe-1A supercomputer</title>
<link>http://techniscience.com/stories/39694/Efficient_parallel_implementation_of_large_scale_3D_structured_grid_CFD_applications_on_the_Tianhe1A_supercomputer.html</link>
<guid>http://techniscience.com/stories/39694/Efficient_parallel_implementation_of_large_scale_3D_structured_grid_CFD_applications_on_the_Tianhe1A_supercomputer.html</guid><description><![CDATA[In this paper, a parallelization for a large scale CFD application with mixed one-to-one multiblock/overset structured grid was implemented into our in-house TH-CFD code running on Tianhe-1A supercomputer system. Strategies at multiple software levels were employed in a mutually supportive way fo...]]></description>
<pubDate>Thu, 23 May 2013 06:12:19 +0100</pubDate>
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<title>Numerical simulation of turbulence at lower costs: Regularization modeling</title>
<link>http://techniscience.com/stories/39695/Numerical_simulation_of_turbulence_at_lower_costs_Regularization_modeling.html</link>
<guid>http://techniscience.com/stories/39695/Numerical_simulation_of_turbulence_at_lower_costs_Regularization_modeling.html</guid><description><![CDATA[The incompressible Navierâ€“Stokes equations constitute an excellent mathematical model of turbulence. Unfortunately, direct simulations with the available computational resources are limited to relatively low-Reynolds numbers because of the almost numberless small scales produced by the non-line...]]></description>
<pubDate>Thu, 23 May 2013 06:12:19 +0100</pubDate>
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<title>Assessment of WENO schemes for numerical simulation of some hyperbolic equations using GPU</title>
<link>http://techniscience.com/stories/39696/Assessment_of_WENO_schemes_for_numerical_simulation_of_some_hyperbolic_equations_using_GPU.html</link>
<guid>http://techniscience.com/stories/39696/Assessment_of_WENO_schemes_for_numerical_simulation_of_some_hyperbolic_equations_using_GPU.html</guid><description><![CDATA[In this paper we study the implementation of WENO schemes on Graphic Processor Unit (GPU). The GPU implementation of the schemes are described for different test cases. The test cases are chosen from the linear and nonlinear and also one- and two-dimensional hyperbolic equations. Both the CPU and...]]></description>
<pubDate>Thu, 23 May 2013 06:12:19 +0100</pubDate>
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<title>Multi-GPU implementation of a hybrid thermal lattice Boltzmann solver using the TheLMA framework</title>
<link>http://techniscience.com/stories/39697/MultiGPU_implementation_of_a_hybrid_thermal_lattice_Boltzmann_solver_using_the_TheLMA_framework.html</link>
<guid>http://techniscience.com/stories/39697/MultiGPU_implementation_of_a_hybrid_thermal_lattice_Boltzmann_solver_using_the_TheLMA_framework.html</guid><description><![CDATA[In this contribution, a single-node multi-GPU thermal lattice Boltzmann solver is presented. We implement a simplified version of the hybrid model developed by Lallemand and Luo in 2003, which combines multiple-relaxation-time lattice Boltzmann for the fluid flow with a finite-difference method f...]]></description>
<pubDate>Thu, 23 May 2013 06:12:19 +0100</pubDate>
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<title>Performance engineering for the lattice Boltzmann method on GPGPUs: Architectural requirements and performance results</title>
<link>http://techniscience.com/stories/39698/Performance_engineering_for_the_lattice_Boltzmann_method_on_GPGPUs_Architectural_requirements_and_performance_results.html</link>
<guid>http://techniscience.com/stories/39698/Performance_engineering_for_the_lattice_Boltzmann_method_on_GPGPUs_Architectural_requirements_and_performance_results.html</guid><description><![CDATA[GPUs offer several times the floating point performance and memory bandwidth of current standard two socket CPU compute nodes, e.g. NVIDIA C2070 vs. Intel Xeon Westmere X5650. The lattice Boltzmann method (LBM) has been established as a flow solver in recent years and was one of the first flow so...]]></description>
<pubDate>Thu, 23 May 2013 06:12:19 +0100</pubDate>
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<title>Domain decomposition and locality optimization for large-scale lattice Boltzmann simulations</title>
<link>http://techniscience.com/stories/39699/Domain_decomposition_and_locality_optimization_for_largescale_lattice_Boltzmann_simulations.html</link>
<guid>http://techniscience.com/stories/39699/Domain_decomposition_and_locality_optimization_for_largescale_lattice_Boltzmann_simulations.html</guid><description><![CDATA[We present a simple, parallel and distributed algorithm for setting up and partitioning a sparse representation of a regular discretized simulation domain. This method is scalable for a large number of processes even for complex geometries and ensures load balancing between the domains, reasonabl...]]></description>
<pubDate>Thu, 23 May 2013 06:12:19 +0100</pubDate>
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<title>Parallel CFD simulation of flow in a 3D model of vibrating human vocal folds</title>
<link>http://techniscience.com/stories/39700/Parallel_CFD_simulation_of_flow_in_a_3D_model_of_vibrating_human_vocal_folds.html</link>
<guid>http://techniscience.com/stories/39700/Parallel_CFD_simulation_of_flow_in_a_3D_model_of_vibrating_human_vocal_folds.html</guid><description><![CDATA[Accurate computation of highly unsteady and massively separated airflow in human vocal folds during phonation, which is fundamental for the understanding and modeling of the aeroacoustic processes involved in human voice production, requires CFD simulations on large 3D dynamic meshes. This work p...]]></description>
<pubDate>Thu, 23 May 2013 06:12:19 +0100</pubDate>
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<title>Migration of a generic multi-physics framework to HPC environments</title>
<link>http://techniscience.com/stories/39701/Migration_of_a_generic_multiphysics_framework_to_HPC_environments.html</link>
<guid>http://techniscience.com/stories/39701/Migration_of_a_generic_multiphysics_framework_to_HPC_environments.html</guid><description><![CDATA[Creating a highly parallelizable code is a challenge specially for Distributed Memory Machines (DMMs). Moreover, algorithms and data structures suitable for these platforms can be very different from the ones used in serial code. For this reason, many programmers in the field prefer to start thei...]]></description>
<pubDate>Thu, 23 May 2013 06:12:19 +0100</pubDate>
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<title>Coupled analysis of unsteady aerodynamics and vehicle motion of a road vehicle in windy conditions</title>
<link>http://techniscience.com/stories/39669/Coupled_analysis_of_unsteady_aerodynamics_and_vehicle_motion_of_a_road_vehicle_in_windy_conditions.html</link>
<guid>http://techniscience.com/stories/39669/Coupled_analysis_of_unsteady_aerodynamics_and_vehicle_motion_of_a_road_vehicle_in_windy_conditions.html</guid><description><![CDATA[The two-way coupling of full-scale vehicle motion and the surrounding turbulence motion has been realized on a developed unsteady aerodynamic simulator for a road vehicle. A large-eddy simulation (LES) technique has been applied to reproduce the unsteady turbulence motion, and an unstructured fin...]]></description>
<pubDate>Thu, 23 May 2013 06:12:18 +0100</pubDate>
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<title>Implementation of a 2D electrostatic Particle-in-Cell algorithm in unified parallel C with dynamic load-balancing</title>
<link>http://techniscience.com/stories/39670/Implementation_of_a_2D_electrostatic_ParticleinCell_algorithm_in_unified_parallel_C_with_dynamic_loadbalancing.html</link>
<guid>http://techniscience.com/stories/39670/Implementation_of_a_2D_electrostatic_ParticleinCell_algorithm_in_unified_parallel_C_with_dynamic_loadbalancing.html</guid><description><![CDATA[The Particle-in-Cell (PIC) method is a Particle-Mesh technique that allows to efficiently simulate kinetic models. Among others applications, space weather simulations could be tackled by massively parallel Particle-in-Cell codes, to model the dynamics of space plasma disturbances. However, reali...]]></description>
<pubDate>Thu, 23 May 2013 06:12:18 +0100</pubDate>
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<title>FMM-based vortex method for simulation of isotropic turbulence on GPUs, compared with a spectral method</title>
<link>http://techniscience.com/stories/39671/FMMbased_vortex_method_for_simulation_of_isotropic_turbulence_on_GPUs_compared_with_a_spectral_method.html</link>
<guid>http://techniscience.com/stories/39671/FMMbased_vortex_method_for_simulation_of_isotropic_turbulence_on_GPUs_compared_with_a_spectral_method.html</guid><description><![CDATA[The Lagrangian vortex method offers an alternative numerical approach for direct numerical simulation of turbulence. The fact that it uses the fast multipole method (FMM)â€”a hierarchical algorithm for N-body problems with highly scalable parallel implementationsâ€”as numerical engine makes it a ...]]></description>
<pubDate>Thu, 23 May 2013 06:12:18 +0100</pubDate>
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<title>Parallel fluid flow control and optimisation with lattice Boltzmann methods and automatic differentiation</title>
<link>http://techniscience.com/stories/39672/Parallel_fluid_flow_control_and_optimisation_with_lattice_Boltzmann_methods_and_automatic_differentiation.html</link>
<guid>http://techniscience.com/stories/39672/Parallel_fluid_flow_control_and_optimisation_with_lattice_Boltzmann_methods_and_automatic_differentiation.html</guid><description><![CDATA[A framework to solve fluid flow control and optimisation problems numerically is presented. Problems are formulated on a mesoscopic basis. In a side condition, the dynamics of a Newtonian fluid is described by a family of lattice Boltzmann equations, which are linked to an incompressible Navierâ€...]]></description>
<pubDate>Thu, 23 May 2013 06:12:18 +0100</pubDate>
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<title>A code for direct numerical simulation of turbulent boundary layers at high Reynolds numbers in BG/P supercomputers</title>
<link>http://techniscience.com/stories/39673/A_code_for_direct_numerical_simulation_of_turbulent_boundary_layers_at_high_Reynolds_numbers_in_BGP_supercomputers.html</link>
<guid>http://techniscience.com/stories/39673/A_code_for_direct_numerical_simulation_of_turbulent_boundary_layers_at_high_Reynolds_numbers_in_BGP_supercomputers.html</guid><description><![CDATA[A new high-resolution code for the direct numerical simulation of a zero pressure gradient turbulent boundary layers over a flat plate has been developed. Its purpose is to simulate a wide range of Reynolds numbers from Re Î¸  =300 to 6800 while showing a linear weak scaling up to 32,768 cores in...]]></description>
<pubDate>Thu, 23 May 2013 06:12:18 +0100</pubDate>
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<title>A parallel radial basis function interpolation method for unstructured dynamic meshes</title>
<link>http://techniscience.com/stories/39674/A_parallel_radial_basis_function_interpolation_method_for_unstructured_dynamic_meshes.html</link>
<guid>http://techniscience.com/stories/39674/A_parallel_radial_basis_function_interpolation_method_for_unstructured_dynamic_meshes.html</guid><description><![CDATA[In this paper a radial basis function (RBF) interpolation method is implemented to be applied in computational fluid dynamics (CFDs) problems with dynamic meshes. The method has been tested with two challenging examples of dynamic meshing, the deformation of a pitching airfoil and a three-dimensi...]]></description>
<pubDate>Thu, 23 May 2013 06:12:18 +0100</pubDate>
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<title>An optimized D2Q37 Lattice Boltzmann code on GP-GPUs</title>
<link>http://techniscience.com/stories/39675/An_optimized_D2Q37_Lattice_Boltzmann_code_on_GPGPUs.html</link>
<guid>http://techniscience.com/stories/39675/An_optimized_D2Q37_Lattice_Boltzmann_code_on_GPGPUs.html</guid><description><![CDATA[We describe the implementation of a thermal compressible Lattice Boltzmann algorithm on an NVIDIA Tesla C2050 system based on the Fermi GP-GPU. We consider two different versions, including and not including reactive effects. We describe the overall organization of the algorithm and give details ...]]></description>
<pubDate>Thu, 23 May 2013 06:12:18 +0100</pubDate>
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<title>Blending of SAS and correlation-based transition models for flow simulation at supercritical Reynolds numbers</title>
<link>http://techniscience.com/stories/39676/Blending_of_SAS_and_correlationbased_transition_models_for_flow_simulation_at_supercritical_Reynolds_numbers.html</link>
<guid>http://techniscience.com/stories/39676/Blending_of_SAS_and_correlationbased_transition_models_for_flow_simulation_at_supercritical_Reynolds_numbers.html</guid><description><![CDATA[In the present study, blending of the SAS model and a correlation-based transition model has been conducted to simultaneously capture the laminarâ€“turbulence transition inside the boundary layer and the unsteady fluctuating flow structure in the wake region. For this purpose, a new blending func...]]></description>
<pubDate>Thu, 23 May 2013 06:12:18 +0100</pubDate>
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<title>Comparison of the numerical solutions of the full Boltzmann and S-model kinetic equations for gas flow through a slit</title>
<link>http://techniscience.com/stories/39677/Comparison_of_the_numerical_solutions_of_the_full_Boltzmann_and_Smodel_kinetic_equations_for_gas_flow_through_a_slit.html</link>
<guid>http://techniscience.com/stories/39677/Comparison_of_the_numerical_solutions_of_the_full_Boltzmann_and_Smodel_kinetic_equations_for_gas_flow_through_a_slit.html</guid><description><![CDATA[The pressure-driven flow of a rarefied gas through a two-dimensional slit is analyzed on the basis of the full Boltzmann equation and its kinetic S-model applying the discrete velocity method. The calculations are carried out for the gas rarefaction ranging from the free-molecular to the hydrodyn...]]></description>
<pubDate>Thu, 23 May 2013 06:12:18 +0100</pubDate>
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