Spray G Modeling ECN 3.0 April 5 th, 2014. ECN 3: Spray G - Spray Modeling 2 April 4-5, 2014 Participating InstitutionAbbreviationResearcher(s) Argonne.

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Presentation transcript:

Spray G Modeling ECN 3.0 April 5 th, 2014

ECN 3: Spray G - Spray Modeling 2 April 4-5, 2014 Participating InstitutionAbbreviationResearcher(s) Argonne National LabANLZihan Wang, Sibendu Som Politecnico di MilanoPolimiTommaso Lucchini, Tarcisio Cerri University of Wisconsin – MadisonUWNoah Van Dam

ECN 3: Spray G - Spray Modeling 3 April 4-5, 2014 Modeling Outline Case description Modeling approaches CFD Measurement definitions Modeling results – Liquid and vapor penetration – Spray visualization – Mixture fraction and drop size (SMD) profiles Summary

ECN 3: Spray G - Spray Modeling 4 April 4-5, 2014 Spray G Nominal Baseline Data/Conditions FuelIsooctane Injection Pressure20 MPa Fuel Temperature90° C ( K) Ambient Temperature300° C ( K) Ambient Density3.5 kg/m 3 - Ambient Pressure5.97 bar (N 2 ); 5.77 bar (Air) Injected Quantity10 mg Injection Duration780 µs Number of Nozzle Holes8 Hole Diameter165 µm Fully Included Angle80°

ECN 3: Spray G - Spray Modeling 5 April 4-5, 2014 Rate of Injection

ECN 3: Spray G - Spray Modeling 6 April 4-5, 2014 Modeling Approaches ANLPolimiUW CFD CodeConverge 2.1.0OpenFOAM + Lib-ICEKIVA3V-r2-ERC Turbulence ModelStandard k-ε RNG k-ε Injection ModelLagrangian/BlobLagrangian/HuhLagrangian/Blob Primary Break-up Model KH-RT (B1 7; RT Length 0.0) Huh-GosmanKH-RT (B1 40; RT Length 1.0) Secondary Break-upWave VaporizationFrösslingSpalding Number- based (mass-based) Frössling Heat TransferO’RourkeRanz-Marshall CollisionNTCNone Turbulent DispersionO’RourkeNoneGaussian Distribution Droplet DragDynamicDynamic w/ non- spherical correction

ECN 3: Spray G - Spray Modeling 7 April 4-5, 2014 Mesh Details ANLPolimiUW Domain Dimensions108 Ø x 108 mm169 x 248 mm100 x 100 x 60 mm Base Cell Size2 mm4 mm1 mm Min Cell Size0.25 mm1 mm- Adaptive or Static Refinement BothAdaptiveUniform Cell TypeCartesian Cartesian Hexahedron Total/Maximum Cell Count 1.53 Million115,000600,000

ECN 3: Spray G - Spray Modeling 8 April 4-5, 2014 CFD Penetration Measurement Details Liquid Penetration – 0.1 % Liquid volume fraction threshold Vapor Penetration – 0.1 % Mixture fraction threshold Measured along injector axis – Zero point at injector tip Penetration Length Side View

ECN 3: Spray G - Spray Modeling 9 April 4-5, 2014 Mixture Fraction and SMD Profile Locations 1.Spray Axis – Along centerline of a spray jet 2.Injector Axis – Along the injector axis 3.Radial – Radially through spray jet center point in a plane 15 mm downstream 4.Transverse – Perpendicular to radial profile through spray jet center point in a plane 15 mm downstream 5.Dual-plume – On a line connecting the center points of two neighboring spray jets in a plane 15 mm downstream

ECN 3: Spray G - Spray Modeling 10 April 4-5, 2014 Profile Location – Spray Axis Along the centerline of an individual spray jet – Distanced measure along the spray axis Zero at injection location, positive towards spray tip Profile Line Top ViewSide View

ECN 3: Spray G - Spray Modeling 11 April 4-5, 2014 Profile Location – Injector Axis Along the injector axis – Distance measure along the injector axis Zero at nozzle tip, positive towards leading edge Profile Line Top ViewSide View

ECN 3: Spray G - Spray Modeling 12 April 4-5, mm Cross-section Plane Plane normal to injector axis Located 15 mm downstream of injector tip measured along injector axis Side View Top View

ECN 3: Spray G - Spray Modeling 13 April 4-5, 2014 Radial Cross-section Along a radial line through the spray axis center point – Zero at injector axis, positive outward Radial Line 15 mm Side View Top View

ECN 3: Spray G - Spray Modeling 14 April 4-5, 2014 Transverse Cross-section Across the spray perpendicular to the radial line – Zero at spray center point Experiments put this at 10 mm radial distance – Positive direction clockwise as viewed from injector 15 mm Side View 10 mm Spray Plume Center Transverse Line Top View

ECN 3: Spray G - Spray Modeling 15 April 4-5, 2014 Dual-plume Cross-section Taken along a line connecting the center-points of two neighboring spray plumes – Zero at center of counter-clockwise-most (as viewed from injector) plume – Positive towards second plume (clockwise as viewed from injector) Dual-plume Line 15 mm Side View Top View

ECN 3: Spray G - Spray Modeling 16 April 4-5, 2014 Image View Orientations Camera/Viewing Position Position 1 (Widest Spray)Position 2 (Narrowest Spray)

ECN 3: Spray G - Spray Modeling 17 April 4-5, 2014 Spray Penetration Liquid PenetrationVapor Penetration

ECN 3: Spray G - Spray Modeling 18 April 4-5, 2014 Spray Penetration (Initial Transient) Liquid PenetrationVapor Penetration

ECN 3: Spray G - Spray Modeling 19 April 4-5, 2014 Liquid Images – View ms ASOI Experiment Polimi ANL UW

ECN 3: Spray G - Spray Modeling 20 April 4-5, 2014 Liquid Images – View ms ASOI Experiment Polimi ANL UW

ECN 3: Spray G - Spray Modeling 21 April 4-5, 2014 Liquid Images – View ms ASOI Experiment Polimi ANL UW

ECN 3: Spray G - Spray Modeling 22 April 4-5, 2014 Liquid Images – View ms ASOI Experiment Polimi ANL UW

ECN 3: Spray G - Spray Modeling 23 April 4-5, 2014 Vapor Images – View ms ASOI Experiment Polimi ANL UW

ECN 3: Spray G - Spray Modeling 24 April 4-5, 2014 Vapor Images – View ms ASOI Experiment Polimi ANL UW

ECN 3: Spray G - Spray Modeling 25 April 4-5, 2014 Vapor Images – View ms ASOI Experiment Polimi ANL UW

ECN 3: Spray G - Spray Modeling 26 April 4-5, 2014 Vapor Images – View ms ASOI Experiment Polimi ANL UW

ECN 3: Spray G - Spray Modeling 27 April 4-5, 2014 Vapor Images – View ms ASOI Experiment Polimi ANL UW

ECN 3: Spray G - Spray Modeling 28 April 4-5, 2014 Mixture Fraction Profile – Spray Axis 0.6 ms ASOI1.0 ms ASOI1.4 ms ASOI

ECN 3: Spray G - Spray Modeling 29 April 4-5, 2014 Mixture Fraction Profile – Injector Axis 0.6 ms ASOI1.0 ms ASOI1.4 ms ASOI

ECN 3: Spray G - Spray Modeling 30 April 4-5, 2014 Mixture Fraction Profile – Radial Profile 0.6 ms ASOI1.0 ms ASOI1.4 ms ASOI

ECN 3: Spray G - Spray Modeling 31 April 4-5, 2014 Mixture Fraction Profile – Transverse Profile 0.6 ms ASOI1.0 ms ASOI1.4 ms ASOI

ECN 3: Spray G - Spray Modeling 32 April 4-5, 2014 Mixture Fraction Profile – Dual-plume Profile 0.6 ms ASOI1.0 ms ASOI1.4 ms ASOI

ECN 3: Spray G - Spray Modeling 33 April 4-5, 2014 SMD Profile – Radial Profile 0.6 ms ASOI1.0 ms ASOI1.4 ms ASOI

ECN 3: Spray G - Spray Modeling 34 April 4-5, 2014 SMD Profile – Transverse Profile 0.6 ms ASOI1.0 ms ASOI1.4 ms ASOI

ECN 3: Spray G - Spray Modeling 35 April 4-5, 2014 SMD Profile – Dual-plume Profile 0.6 ms ASOI1.0 ms ASOI1.4 ms ASOI

ECN 3: Spray G - Spray Modeling 36 April 4-5, 2014 Summary Penetration all similar to experimental data – Initial transients should be investigated more – Liquid vaporization time incorrect? Best practice to compare liquid images? Upstream (near-nozzle) vapor behavior, detached or not? Some simulations may be under-resolved

ECN 3: Spray G - Spray Modeling 37 April 4-5, 2014 Future Work More accurate boundary conditions from experiments – Hole specific boundary conditions? Parametric variations Better ways to understand spray-to-spray interactions

ECN 3: Spray G - Spray Modeling 38 April 4-5, 2014

ECN 3: Spray G - Spray Modeling 39 April 4-5, 2014 Mixture Fraction Profile – Spray Axis 0.6 ms ASOI

ECN 3: Spray G - Spray Modeling 40 April 4-5, 2014 Mixture Fraction Profile – Spray Axis 0.8 ms ASOI

ECN 3: Spray G - Spray Modeling 41 April 4-5, 2014 Mixture Fraction Profile – Spray Axis 1.0 ms ASOI

ECN 3: Spray G - Spray Modeling 42 April 4-5, 2014 Mixture Fraction Profile – Spray Axis 1.2 ms ASOI

ECN 3: Spray G - Spray Modeling 43 April 4-5, 2014 Mixture Fraction Profile – Spray Axis 1.4 ms ASOI

ECN 3: Spray G - Spray Modeling 44 April 4-5, 2014 Mixture Fraction Profile – Injector Axis 0.6 ms ASOI

ECN 3: Spray G - Spray Modeling 45 April 4-5, 2014 Mixture Fraction Profile – Injector Axis 0.8 ms ASOI

ECN 3: Spray G - Spray Modeling 46 April 4-5, 2014 Mixture Fraction Profile – Injector Axis 1.0 ms ASOI

ECN 3: Spray G - Spray Modeling 47 April 4-5, 2014 Mixture Fraction Profile – Injector Axis 1.2 ms ASOI

ECN 3: Spray G - Spray Modeling 48 April 4-5, 2014 Mixture Fraction Profile – Injector Axis 1.4 ms ASOI

ECN 3: Spray G - Spray Modeling 49 April 4-5, 2014 Mixture Fraction Profile – Radial Profile 0.6 ms ASOI

ECN 3: Spray G - Spray Modeling 50 April 4-5, 2014 Mixture Fraction Profile – Radial Profile 0.8 ms ASOI

ECN 3: Spray G - Spray Modeling 51 April 4-5, 2014 Mixture Fraction Profile – Radial Profile 1.0 ms ASOI

ECN 3: Spray G - Spray Modeling 52 April 4-5, 2014 Mixture Fraction Profile – Radial Profile 1.2 ms ASOI

ECN 3: Spray G - Spray Modeling 53 April 4-5, 2014 Mixture Fraction Profile – Radial Profile 1.4 ms ASOI

ECN 3: Spray G - Spray Modeling 54 April 4-5, 2014 Mixture Fraction Profile – Transverse Profile 0.6 ms ASOI

ECN 3: Spray G - Spray Modeling 55 April 4-5, 2014 Mixture Fraction Profile – Transverse Profile 0.8 ms ASOI

ECN 3: Spray G - Spray Modeling 56 April 4-5, 2014 Mixture Fraction Profile – Transverse Profile 1.0 ms ASOI

ECN 3: Spray G - Spray Modeling 57 April 4-5, 2014 Mixture Fraction Profile – Transverse Profile 1.2 ms ASOI

ECN 3: Spray G - Spray Modeling 58 April 4-5, 2014 Mixture Fraction Profile – Transverse Profile 1.4 ms ASOI

ECN 3: Spray G - Spray Modeling 59 April 4-5, 2014 Mixture Fraction Profile – Dual-plume Profile 0.6 ms ASOI

ECN 3: Spray G - Spray Modeling 60 April 4-5, 2014 Mixture Fraction Profile – Dual-plume Profile 0.8 ms ASOI

ECN 3: Spray G - Spray Modeling 61 April 4-5, 2014 Mixture Fraction Profile – Dual-plume Profile 1.0 ms ASOI

ECN 3: Spray G - Spray Modeling 62 April 4-5, 2014 Mixture Fraction Profile – Dual-plume Profile 1.4 ms ASOI

ECN 3: Spray G - Spray Modeling 63 April 4-5, 2014 Mixture Fraction Profile – Dual-plume Profile 0.6 ms ASOI

ECN 3: Spray G - Spray Modeling 64 April 4-5, 2014 SMD Profile – Radial Profile 0.6 ms ASOI

ECN 3: Spray G - Spray Modeling 65 April 4-5, 2014 SMD Profile – Radial Profile 0.8 ms ASOI

ECN 3: Spray G - Spray Modeling 66 April 4-5, 2014 SMD Profile – Radial Profile 1.0 ms ASOI

ECN 3: Spray G - Spray Modeling 67 April 4-5, 2014 SMD Profile – Radial Profile 1.2 ms ASOI

ECN 3: Spray G - Spray Modeling 68 April 4-5, 2014 SMD Profile – Radial Profile 1.4 ms ASOI

ECN 3: Spray G - Spray Modeling 69 April 4-5, 2014 SMD Profile – Transverse Profile 0.6 ms ASOI

ECN 3: Spray G - Spray Modeling 70 April 4-5, 2014 SMD Profile – Transverse Profile 0.8 ms ASOI

ECN 3: Spray G - Spray Modeling 71 April 4-5, 2014 SMD Profile – Transverse Profile 1.0 ms ASOI

ECN 3: Spray G - Spray Modeling 72 April 4-5, 2014 SMD Profile – Transverse Profile 1.2 ms ASOI

ECN 3: Spray G - Spray Modeling 73 April 4-5, 2014 SMD Profile – Transverse Profile 1.4 ms ASOI

ECN 3: Spray G - Spray Modeling 74 April 4-5, 2014 SMD Profile – Dual-plume Profile 0.6 ms ASOI

ECN 3: Spray G - Spray Modeling 75 April 4-5, 2014 SMD Profile – Dual-plume Profile 0.8 ms ASOI

ECN 3: Spray G - Spray Modeling 76 April 4-5, 2014 SMD Profile – Dual-plume Profile 1.0 ms ASOI

ECN 3: Spray G - Spray Modeling 77 April 4-5, 2014 SMD Profile – Dual-plume Profile 1.2 ms ASOI

ECN 3: Spray G - Spray Modeling 78 April 4-5, 2014 SMD Profile – Dual-plume Profile 1.4 ms ASOI