HPCMP CREATE -Genesis CFD...Pressure over Diamond Airfoil at Mach=2.0, = ±10deg Distribution...
Transcript of HPCMP CREATE -Genesis CFD...Pressure over Diamond Airfoil at Mach=2.0, = ±10deg Distribution...
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HPCMP CREATE-Genesis CFD
Jim Forsythe, Ph.D., Quality AssuranceJuly 20, 2017Distribution Statement A. Approved for public release: distribution unlimited
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Overview
1 Genesis CFD
2 Sample Curriculum
3 ExamplesSupersonic AirfoilTransonic Wing
Distribution Statement A. 2
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Genesis-CFD Components/Capabilities
Single Mesh Unstructured SolverEuler/Laminar/RANS/DESIdeal GasLimited cores per job (128-256)
MotionPrescribed (including arbitrary)6-DOF without constraints
StructuresModal solver
Plugins useable, but without SDK todevelop
Propulsion
0-D Linear engine model for BC’s
Rotating reference frame
Sliding interfaces
Visualization features
Full Volume write to Tecplot,FieldView, Ensight
Extracts for FieldViewXDB, Silo,Tecplot, VTK
In-Situ using VisIt
Distribution Statement A. 3
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Sample Curriculum
Core coursesFluids I (Incompressible)Fluids II (Compressible)Experimental Methods / Labs
ElectivesApplied CFDPropulsion
Distribution Statement A. 4
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Sample Curriculum - Fluids
Lectures – Use canned CFD solutions for illustration (cylinder, sphere, airfoil),examples
Langrangian derivative terms on a cylinder, e.g. v ∂u∂y
Fluid “particle” deformation types (e.g. angular/linear deformation, rotation, strain,volume dilitation).Gradients (e.g. pressure)Steady vs. UnsteadyStreamlines, Streaklines, Pathlines
Distribution Statement A. 5
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Sample Curriculum - Fluids
Lectures – Use canned CFD solutions for illustration (cylinder, sphere, airfoil),examples
Langrangian derivative terms on a cylinder, e.g. v ∂u∂y
Fluid “particle” deformation types (e.g. angular/linear deformation, rotation, strain,volume dilitation).Gradients (e.g. pressure)Steady vs. UnsteadyStreamlines, Streaklines, Pathlines
Distribution Statement A. 5
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Sample Curriculum - Fluids
Lectures – Use canned CFD solutions for illustration (cylinder, sphere, airfoil),examples
Langrangian derivative terms on a cylinder, e.g. v ∂u∂y
Fluid “particle” deformation types (e.g. angular/linear deformation, rotation, strain,volume dilitation).Gradients (e.g. pressure)Steady vs. UnsteadyStreamlines, Streaklines, Pathlines
Basics of CFD (1-2 lectures)Show simple model problem (1-D linear convection, burgers eqn)Finite difference derivation from Taylor series. Order of accuracyExplicit vs. implicitWhen to use CFD vs. potential based methods
CFD project (sphere at various Re)Simple geometry or provide meshesGrid and/or timestep refinementComparison to experimental data
Distribution Statement A. 5
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Sample Curriculum - Other
Experiment/Lab courseSubset of students provide CFD supportPossible uses of CFD:
Analyze wind tunnel wall effectsVisualize the flow being measuredTest validity of CFD
PropulsionSingle Stage Analysis using rotating reference frame and sliding interfacesInlet losses using Engine boundary condition
DesignCFD of final designs using DaVinciVerify performanceMore advanced - look at dynamic stability derivatives
Distribution Statement A. 6
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Examples - Diamond Airfoil
Description:Fluids IIStudent project oras a lecture aidSlow oscillatingpitch motion toshow effect of α
Time:Meshing: 15minutesJob Setup: 10minutesPost-processing:30 minutes
Mach over Diamond Airfoil at Mach=2.0, α = ±10 deg
Distribution Statement A. 7
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Examples - Diamond Airfoil
Description:Fluids IIStudent project oras a lecture aidSlow oscillatingpitch motion toshow effect of α
Time:Meshing: 15minutesJob Setup: 10minutesPost-processing:30 minutes
Pressure over Diamond Airfoil at Mach=2.0, α = ±10 deg
Distribution Statement A. 7
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Examples - Onera M6
Description:Fluids IIStudent project oras a lecture aidShows transoniceffects
Time:Meshing: ProvidedJob Setup: 10minutesPost-processing:30-60 minutes
Mach cutting plane with surface pressure on OneraM6 wing
Distribution Statement A. 8
Genesis CFDSample CurriculumExamplesSupersonic AirfoilTransonic Wing