This configuration was used for the four CFD-CHT benchmark problems.Ĩ Benchmark environment and criteria Operating system: for the first hardware platform, the operating system was 32 bit and running Windows XP for the second hardware platform, the operating system was 64 bit running Windows Vista.ĩ Benchmark environment and criteria Benchmark criteria Computational accuracy (comparison difference is less than or equal to 5%) Contours of key variables Extreme values Experimental data Mesh independent study Comparisons are made for results obtained for different mesh densities for a selected test problem Increase in the number of elements leads to negligible differences in the solutions.ġ0 Benchmark environment and criteria-cont. Platform 2: Intel Core 2 Quad CPU Q9300 CPU 2.50GHz, 4.0GB RAM. 3D natural convection within an air-filled articulated cubical enclosure ConclusionsĦ Introduction Objective Compare results obtained from COMSOL Multiphysics 3.4 with those obtained from COMSOL Multiphysics 3.5a for four multiphysics problems Test four CFD and CHT problems using COMSOL Multiphysics 3.5a Obtain the CPU times and memory costs for solving those problems New features for COMSOL 3.5a segregated solver bit memory saving 50%ħ Benchmark environment and criteria Hardware: Platform 1: Pentium(R) D CPU 2.80GHz, 4.0GB this configuration was used to test the first four benchmark problems. Incompressible heated laminar flow and nonheated turbulent flow over a 2-D backward facing step 4. 8-10, 2009Ĥ Verification vs validation Verification = solving the eqns right Validation = solving the right eqns Benchmarking = validating the verificationĥ Outline Introduction Benchmark environment and criteria Simulation results 1. Pepper Xiuling Wang* Nevada Center for Advanced Computational Methods University of Nevada Las Vegas *Purdue University - Calumet Boston MA, Oct. 1 Presented at the COMSOL Conference 2009 Boston Benchmarking COMSOL Multiphysics 3.5a CFD problems Darrell W.
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