This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Large Eddy Simulations of Supercritical and Transcritical Jet Flows Using Real Fluid Thermophysical Properties
Technical Paper
2020-01-1153
ISSN: 0148-7191, e-ISSN: 2688-3627
This content contains downloadable datasets
Annotation ability available
Sector:
Language:
English
Abstract
In order to understand supercritical jet flows further, well resolved large eddy simulations (LES) of a n-dodecane jet mixing with surrounding nitrogen are conducted. A real fluid thermodynamic model is used to account for the fuel compressibility and variable thermophysical properties due to the solubility of ambient gas and liquid jet using the cubic Peng-Robinson equation of state (PR-EOS). A molar averaged homogeneous mixing rule is used to calculate the mixing properties. The thermodynamic model is coupled with a pressure-based solver to simulate multispecies reacting flows. The numerical model is based on a second order accurate method implemented in the open source OpenFOAM-6 software. First, to evaluate the present numerical model for sprays, 1D advection and shock tube benchmark problems at supercritical conditions are shown. Second, a cryogenic nitrogen injection with a jet velocity of 4.9 m/s into a supercritical nitrogen environment at 4 MPa and room temperature is considered to carry out a grid resolution study, and the corresponding results are evaluated against experimental data of Mayer et al. Then, to assess the effects of thermophysical property variations due to mixing of two species, a high-pressure jet of n-dodecane at transcritical and supercritical temperatures at 200 m/s into high-pressure and high-temperature nitrogen environment is studied. Detailed analysis of the species dispersion and mixing are presented for various conditions. The present LES simulations of n-dodecane jets show massive shear forces and high hydrodynamic pressure fluctuations caused by the high-speed jet. The predicted results of flow and thermophysical properties are in close agreement with the available literature data.
Recommended Content
Authors
Citation
Ningegowda, B., Rahantamialisoa, F., Zembi, J., Pandal, A. et al., "Large Eddy Simulations of Supercritical and Transcritical Jet Flows Using Real Fluid Thermophysical Properties," SAE Technical Paper 2020-01-1153, 2020, https://doi.org/10.4271/2020-01-1153.Data Sets - Support Documents
| Title | Description | Download |
|---|---|---|
| Unnamed Dataset 1 | ||
| Unnamed Dataset 2 |
Also In
References
- Rodriguez , C. , Vidal , A. , Koukouvinis , P. , Gavaises , M. et al. Simulation of Transcritical Fluid Jets Using the PC-SAFT EoS Journal of Computational Physics 374 444 468 2018
- Ma , P.C. , Wu , H. , Banuti , D.T. , and Ihme , M. Numerical Analysis on Mixing Processes for Transcritical Real-Fluid Simulations 2018 AIAA Aerospace Sciences Meeting 2018
- Battistoni , M. , Magnotti , G.M. , Genzale , C.L. , Arienti , M. et al. Experimental and Computational Investigation of Subcritical Near-Nozzle Spray Structure and Primary Atomization in the Engine Combustion Network Spray D SAE Int. J. Fuels Lubr. 11 4 377 352 2018 2018 https://doi.org/10.4271/2018-01-0277
- Lacaze , G. , Misdariis , A. , Ruiz , A. , and Oefelein , J.C. Analysis of High-Pressure Diesel Fuel Injection Processes Using LES with Real-Fluid Thermodynamics and Transport Proceedings of the Combustion Institute 35 2 1603 1611 2015
- Dahms , R.N. and Oefelein , J.C. On the Transition between Two-Phase and Single-Phase Interface Dynamics in Multicomponent Fluids at Supercritical Pressures Physics of Fluids 25 9 092103 2013
- Banuti , D.T. , Hannemann , V. , Hannemann , K. , and Weigand , B. An Efficient Multi-Fluid-Mixing Model for Real Gas Reacting Flows in Liquid Propellant Rocket Engines Combustion and Flame 168 98 112 2016
- Mayer , W. , Telaar , J. , Branam , R. , Schneider , G. et al. Raman Measurements of Cryogenic Injection at Supercritical Pressure Heat and Mass Transfer 39 8 709 719 2003
- Matheis , J. , Müller , H. , Lenz , C. , Pfitzner , M. et al. Volume Translation Methods for Real-Gas Computational Fluid Dynamics Simulations The Journal of Supercritical Fluids 107 422 432 2016
- Yi , P. , Yang , S. , Habchi , C. , and Lugo , R. A Multicomponent Real-Fluid Fully Compressible Four-Equation Model for Two-Phase Flow with Phase Change Phys. Fluids 31 026102 2019 https://doi.org/10.1063/1.5065781
- Jarczyk , M. and Pfitzner , M. Large Eddy Simulation of Supercritical Nitrogen Jets 50th AIAA Meeting Nashville, TN 2012
- Müller , H. , Niedermeier , C.A. , Matheis , J. , Pfitzner , M. et al. Large-Eddy Simulation of Nitrogen Injection at Trans-and Supercritical Conditions Physics of Fluids 28 1 015102 2016
- Zhang , J. , Zhang , X. , Wang , T. , and Hou , X. A Numerical Study on Jet Characteristics under Different Supercritical Conditions for Engine Applications Applied Energy 252 113428 2019
- Reid , R.C. , Prausnitz , J.M. , and Poling , B.E. 1987
- Poling , B. , Prausnitz , J. , and O’Connell , J. The Properties of Gases and Liquids Fifth McGraw-Hill 2000
- Matheis , J. and Hickel , S. Multi-Component Vapor-Liquid Equilibrium Model for LES of High-Pressure Fuel Injection and Application to ECN Spray A International Journal of Multiphase Flow 99 294 311 2018
- Qiu , L. and Reitz , R.D. An Investigation of Thermodynamic States during High-Pressure Fuel Injection Using Equilibrium Thermodynamics Int. J. Multiphase Flow 72 24 38 2015 10.1016/j.ijmultiphaseflow.2015.01.011
- Li , L. , Xie , M. , Wei , W. , Jia , M. , and Liu , H. Numerical Investigation on Cryogenic Liquid Jet under Transcritical and Supercritical Conditions Cryogenics 89 16 28 2018
- Chung , T.H. et al. Ind. Eng. Chem. Res. 1988
- Ferziger , J.H. and Perić , M. Computational Methods for Fluid Dynamics 3 Berlin Springer 2002
- Ma , P.C. , Lv , Y. , and Ihme , M. An Entropy-Stable Hybrid Scheme for Simulations of Transcritical Real-Fluid Flows Journal of Computational Physics 340 330 357 2017
- Ma , P.C. , Wu , H. , Banuti , D.T. , and Ihme , M. On the Numerical Behavior of Diffuse-Interface Methods for Transcritical Real-Fluids Simulations International Journal of Multiphase Flow 113 231 249 2019
- Rodriguez , C. , Koukouvinis , P. , and Gavaises , M. Simulation of Supercritical Diesel Jets Using the PC-SAFT EoS The Journal of Supercritical Fluids 145 48 65 2019
- Sengers , J.M.H.L. and Kiran , E. Supercritical Fluids: Fundamentals for Application Kluwer Academic Publishers 1994