xflow cnrs marseille 24mai2012
TRANSCRIPT
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XFlow Meshless Particle -based CFD Code
Presented By: Fausto Gill Di Vincenzo24-05-2012
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Topics
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Xflow application fields
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Large Eddy Simulation - Turbulence Modeling ( &+$ %+(++++89:;+#++++&+++ !! ++5+++(+++
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Topics
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XFlow Interface
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1st Validation Test Case +)&+++!+,;;8>+
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Post Processing of Results
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X - component of the Velocity along the Data Plot Li nes+D+; +D+;@>A +D+;@A
Courtesy of David P. Lockard and the NASA Langley Research Center
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Y - component of the Velocity along the Data Plot Li nes+D+; +D+;@>A +D+;@A
Courtesy of David P. Lockard and the NASA Langley Research Center
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Pressure Coefficient along the Data Plot Lines+D+; +D+;@>A +D+;@A
Courtesy of David P. Lockard and the NASA Langley Research Center
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Comparison of the Drag and Lift Coefficient
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Courtesy of David P. Lockard and the NASA Langley Research Center
Results are in accordance with objective
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2nd Validation Test Case
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Projection of the Pressure Coefficient
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Pressure Coefficient for different AOA
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Pressure Coefficient for different AOA
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Pressure Coefficient for different AOA
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3th Validation Test Case
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Turbulent wake structure
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Pressure distribution along the symmetry plane
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Pressure distribution along the symmetry plane
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Drag estimation
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4th High lift prediction
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4th High lift prediction
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4th High lift prediction7+++++ + ++2++
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Results overview+ )+&+ &.
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Vorticity
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Pressure distribution
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Friction coefficient distribution
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Drag coefficient distribution
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Lift coefficient distribution
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Polar curve evaluation
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Topics
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Traditional Mesh -based CFD codes
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Traditional Mesh -based process analysis +"
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Motivation for modeling with XFlow# L++ -(( &++-0)+& #&+"
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Geometry tessellation - Mesh +"+ ( +
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Regular STL Geometry creation via FEM
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Topics
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UAV - Geometry creation via FEM
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