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LES Investigation of ECN Spray G2 with an Eulerian Stochastic Field Cavitation Model
Technical Paper
2018-01-0291
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Due to an ongoing trend of high injection pressures in the realm of internal combustion engines, the role of cavitation that typically happens inside the injector nozzle has become increasingly important. In this work, a large Eddy Simulation (LES) with cavitation modeled on the basis of an Eulerian Stochastic Field (ESF) method and a homogeneous mixture model is performed to investigate the role of cavitation on the Engine Combustion Network (ECN) spray G2. The Eulerian stochastic field cavitation model is coupled to a pressure based solver for the flow, which lowers the computational cost, thereby making the methodology highly applicable to realistic injector geometries. Moreover, the nature of the Eulerian stochastic field method makes it more convenient to achieve a high scalability when applied to parallel cases, which gives the method the edge over cavitation models that are based on Lagrangian tracking.
The result of the Eulerian stochastic field simulation is compared against that from a typical single volume fraction solver for validation. Vortex structures and its correspondence to cavitation are shown, and the behavior of the size Probability Density Function (PDF) at different probe locations at different times are acquired to demonstrate the capability of the Eulerian stochastic field model to capture cavitation and potentially providing more statistical information in each cell as compared to the typical single volume fraction solver. Major cavitation zones that are observed in the result indicates the important role of cavitation in ECN spray G2, therefore inferring a need to take cavitation into consideration in future spray studies.
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Chen, B. and Oevermann, M., "LES Investigation of ECN Spray G2 with an Eulerian Stochastic Field Cavitation Model," SAE Technical Paper 2018-01-0291, 2018, https://doi.org/10.4271/2018-01-0291.Data Sets - Support Documents
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References
- Sou , A. , Hosokawa , S. , and Tomiyama , A. Effects of Cavitation in a Nozzle on Liquid Jet Atomization International Journal of Heat and Mass Transfer 50 17 3575 3582 2007
- Roosen , P. Investigation of the Transient Behaviour of Cavitation Effects in Liquid Injection Nozzles Transient Phenomena in Multiphase and Multicomponent Systems: Research Report 2007 72 83
- Winklhofer , E. , et al. Comprehensive Hydraulic and Flow Field Documentation in Model Throttle Experiments under Cavitation Conditions Proceedings of the ILASS-Europe Conference 2001 574 579
- Mauger , C. , Méès , L. , Michard , M. , Azouzi , A. et al. Shadowgraph, Schlieren and Interferometry in a 2D Cavitating Channel Flow Experiments in Fluids 53 6 1895 1913 2012
- Gavaises , M. and Andriotis , A. Cavitation inside Multi-Hole Injectors for Large Diesel Engines and Its Effect on the Near-Nozzle Spray Structure SAE Technical Paper 2006-01-1114 2006 10.4271/2006-01-1114
- Giannadakis , E Modelling of Cavitation in Automotive Fuel Injector Nozzles 2005
- Giannadakis , E. , Gavaises , M. , and Arcoumanis , C. Modelling of Cavitation in Diesel Injector Nozzles Journal of Fluid Mechanics 616 153 193 2008
- Dabiri , S. , Sirignano , W. , and Joseph , D. Cavitation in an Orifice Flow Physics of Fluids 19 7 072112 2007
- Dabiri , S. , Sirignano , W. , and Joseph , D. A Numerical Study on the Effects of Cavitation on Orifice Flow Physics of Fluids 22 4 042102 2010
- Marcer , R. and J. LeGouez Simulation of Unsteady Cavitating Flows in Diesel Injector with an Improved VOF-Method 17th ILASS-Europe Conf 2001
- Rodio , M.G. and Abgrall , R. An Innovative Phase Transition Modeling for Reproducing Cavitation through a Five-Equation Model and Theoretical Generalization to Six and Seven-Equation Models International Journal of Heat and Mass Transfer 89 1386 1401 2015
- Baer , M. and Nunziato , J. A Two-Phase Mixture Theory for the Deflagration-to-Detonation Transition (DDT) in Reactive Granular Materials International Journal of Multiphase Flow 12 6 861 889 1986
- Ishii , M. Thermo-Fluid Dynamic Theory of Two-Phase Flow 29657 1975
- Boure , J. and Delhaye , J. General Equations and Two-Phase Flow Modeling Handbook of Multiphase Systems 1982 1 36
- Butler , P.B. , Lembeck , M. , and Krier , H. Modeling of Shock Development and Transition to Detonation Initiated by Burning in Porous Propellant Beds Combustion and Flame 46 75 93 1982
- Saurel , R. , Petitpas , F. , and Abgrall , R. Modelling Phase Transition in Metastable Liquids: Application to Cavitating and Flashing Flows Journal of Fluid Mechanics 607 313 350 2008
- Yuan , W. , Sauer , J. , and Schnerr , G.H. Modeling and Computation of Unsteady Cavitation Flows in Injection Nozzles Mécanique & Industries 2 5 383 394 2001
- Yuan , W. and Schnerr , G.H. Numerical Simulation of Two-Phase Flow in Injection Nozzles: Interaction of Cavitation and External Jet Formation Journal of Fluids Engineering 125 6 963 969 2003
- Chen , B. et al. LES modelling of cavitation flow in a diesel injector nozzle International Conference on Multiphase Flow Florence, Italy 2016
- Rayleigh , L. On the Pressure Developed in a Liquid during the Collapse of a Spherical Cavity The London, Edinburgh, and Dublin Philosophical Magazine and Journal of Science 34 200 94 98 1917
- Altimira , M. and Fuchs , L. Numerical Investigation of Throttle Flow under Cavitating Conditions International Journal of Multiphase Flow 75 124 136 2015
- Pope , S.B. PDF Methods for Turbulent Reactive Flows Progress in Energy and Combustion Science 11 2 119 192 1985
- Pope , S.B. A Monte Carlo Method for the PDF Equations of Turbulent Reactive Flow Combustion Science and Technology 25 5-6 159 174 1981
- Valiño , L. A Field Monte Carlo Formulation for Calculating the Probability Density Function of a Single Scalar in a Turbulent Flow Flow, Turbulence and Combustion 60 2 157 172 1998
- Dumond , J. , Magagnato , F. , and Class , A. Stochastic-Field Cavitation Model Physics of Fluids 25 7 073302 2013
- Smagorinsky , J. General Circulation Experiments with the Primitive Equations Monthly Weather Review 91 3 99 164 1963
- Issa , R.I. Solution of the Implicitly Discretised Fluid Flow Equations by Operator-Splitting Journal of Computational Physics 62 1 40 65 1986
- Delarue , B. and Pope , S. Calculations of Subsonic and Supersonic Turbulent Reacting Mixing Layers Using Probability Density Function Methods Physics of Fluids 10 2 487 498 1998
- Gardiner , C.W. Handbook of Stochastic Methods 3 Berlin Springer 1985
- Platen , K. Numerical Solution of Stochastic Differential Equations Berlin Springer 1995
- Rößler , A. Runge-Kutta Methods for Itô Stochastic Differential Equations with Scalar Noise BIT Numerical Mathematics 46 1 97 110 2006
- Rößler , A. , Seaïd , M. , and Zahri , M. Method of Lines for Stochastic Boundary-Value Problems with Additive Noise Applied Mathematics and Computation 199 1 301 314 2008
- Zahri , M. On Numerical Schemes for Solving a Stochastic Advection-Diffusion International Journal of Pure and Applied Mathematics 77 5 681 694 2012
- Chen , B. LES Stochastic Modelling of Cavitation with its Applications in OpenFOAM Chalmers University of Technology Sweden, Gothenburg 2016
- Jasak , H. Error Analysis and Estimation for the Finite Volume Method with Applications to Fluid Flow 1996
- Jasak , H. and Gosman , A. Element Residual Error Estimate for the Finite Volume Method Computers & Fluids 32 2 223 248 2003
- Rusche , H Computational Fluid Dynamics of Dispersed Two-Phase Flows at High Phase Fractions 2003
- Baldwin , E. , Grover , R.O. Jr. , Parrish , S.E. , Duke , D.J. et al. String Flash-Boiling in Gasoline Direct Injection Simulations with Transient Needle Motion International Journal of Multiphase Flow 87 90 101 2016
- Smith , E.R. Boiling Points of N-Heptane and 2,2,4-trimethylpentane over the Range 100- to 1,500-millimeter Pressure Journal of Research of the National Bureau of Standards 24 229 1940
- Dymond , J. , Glen , N. , and Isdale , J. Transport Properties of Nonelectrolyte Liquid Mixtures-VII. Viscosity Coefficients for Isooctane and for Equimolar Mixtures of Isooctane+ N-Octane and Isooctane+ N-Dodecane from 25 to 100° C at Pressures up to 500 MPa or to the Freezing Pressure International Journal of Thermophysics 6 3 233 250 1985
- Fujimoto , H. et al Modeling of Atomization and Vaporization Process 1994
- Saha , K. et al. Numerical Simulation of Internal and Near-Nozzle Flow of a Gasoline Direct Injection Fuel Injector Journal of Physics: Conference Series IOP Publishing 2015
- Colombet , D. , Da Silva , E.G. , and Fortes-Patella , R. On Numerical Simulation of Cavitating Flows under Thermal Regime International Journal of Heat and Mass Transfer 105 411 428 2017
- Blessinger , M. , Manin , J. , Skeen , S.A. , Meijer , M. et al. Quantitative Mixing Measurements and Stochastic Variability of a Vaporizing Gasoline Direct-Injection Spray International Journal of Engine Research 16 2 238 252 2015
- Strek , P. , Duke , D. , Swantek , A. , Kastengren , A. et al. X-Ray Radiography and CFD Studies of the Spray G Injector SAE Technical Paper 2016-01-0858 2016 10.4271/2016-01-0858