年間 12 号発行
ISSN 印刷: 1044-5110
ISSN オンライン: 1936-2684
Indexed in
INVESTIGATION OF HOMOGENEOUS RELAXATION MODEL PARAMETERS AND THEIR IMPLICATIONS FOR GASOLINE INJECTORS
要約
Flash boiling is known to be a common phenomenon for gasoline direct injection (GDI) engine sprays. The Homogeneous Relaxation Model has been adopted in many recent numerical studies for predicting cavitation and flash boiling. The Homogeneous Relaxation Model is assessed in this study. Sensitivity analysis of the model parameters has been documented to infer the driving factors for the flash-boiling predictions. The model parameters have been varied over a range and the differences in predictions of the extent of flashing have been studied. Apart from flashing in the near-nozzle regions, mild cavitation is also predicted inside the gasoline injectors. The variation in the predicted time scales through the model parameters for predicting these two different thermodynamic phenomena (cavitation, flash) have been elaborated in this study. Turbulence model effects have also been investigated by comparing predictions from the standard and Re-Normalization Group (RNG) k−ε turbulence models.
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Saha Kaushik, Srivastava Priyesh, Quan Shaoping, Senecal P. K., Pomraning Eric, Som Sibendu, Modeling the Dynamic Coupling of Internal Nozzle Flow and Spray Formation for Gasoline Direct Injection Applications, SAE Technical Paper Series, 1, 2018. Crossref
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Engelbrecht E. Geoffrey, Giakoumis Zoitis, Sidiropoulos Stathis, Chasoglou Alexandros, Chokani Ndaona, Sorce A., Tucker D., Sayma A., Modelling phase change in a novel turbo expander for application to heat pumps and refrigeration cycles, E3S Web of Conferences, 113, 2019. Crossref
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Jacobsohn Gabriel L., Mohapatra Chinmoy K., Grover Ronald O., Duke Daniel J., Schmidt David P., Comparison of Turbulence Modeling Methods for Evaluating GDI Sprays with Transient Needle Motion, SAE Technical Paper Series, 1, 2019. Crossref
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Guo Hengjie, Li Yanfei, Xu Hongming, Shuai Shijin, Zhang Huiqiang, Interaction between under-expanded flashing jets: A numerical study, International Journal of Heat and Mass Transfer, 137, 2019. Crossref
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Guo Hengjie, Nocivelli Lorenzo, Torelli Roberto, Som Sibendu, Towards understanding the development and characteristics of under-expanded flash boiling jets, International Journal of Multiphase Flow, 129, 2020. Crossref
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Shahangian Navid, Sharifian Leila, Miyagawa Jun, Bergamini Stefano, Uehara Kazuhiro, Noguchi Yasushi, Marti-Aldaravi Pedro, Martínez María, Payri Raul, Nozzle Flow and Spray Development One-Way Coupling Methodology for a Multi-Hole GDi Injector, SAE Technical Paper Series, 1, 2019. Crossref
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Hwang Joonsik, Yasutomi Koji, Arienti Marco, Pickett Lyle M., Numerical Investigation of Near Nozzle Flash-Boiling Spray in an Axial-Hole Transparent Nozzle, SAE Technical Paper Series, 1, 2020. Crossref
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Gärtner Jan Wilhelm, Kronenburg Andreas, Rees Andreas, Sender Joachim, Oschwald Michael, Lamanna Grazia, Numerical and experimental analysis of flashing cryogenic nitrogen, International Journal of Multiphase Flow, 130, 2020. Crossref
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Shahangian Navid, Sharifian Leila, Uehara Kazuhiro, Noguchi Yasushi, Martínez María, Martí-Aldaraví Pedro, Payri Raúl, Transient nozzle flow simulations of gasoline direct fuel injectors, Applied Thermal Engineering, 175, 2020. Crossref
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Nocivelli Lorenzo, Sforzo Brandon A., Tekawade Aniket, Yan Junhao, Powell Christopher F., Chang Wayne, Lee Chia-Fon, Som Sibendu, Analysis of the Spray Numerical Injection Modeling for Gasoline Applications, SAE Technical Paper Series, 1, 2020. Crossref
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Liao Yixiang, Lucas Dirk, A review on numerical modelling of flashing flow with application to nuclear safety analysis, Applied Thermal Engineering, 182, 2021. Crossref
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Magnotti Gina M., Battistoni Michele, Saha Kaushik, Som Sibendu, Development and validation of the cavitation-induced erosion risk assessment tool, Transportation Engineering, 2, 2020. Crossref
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Hwang Joonsik, Lee Philku, Mun Sungkwang, Karathanassis Ioannis K., Koukouvinis Phoevos, Pickett Lyle M., Gavaises Manolis, Machine-learning enabled prediction of 3D spray under engine combustion network spray G conditions, Fuel, 293, 2021. Crossref
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Gärtner Jan Wilhelm, Feng Ye, Kronenburg Andreas, Stein Oliver T., Numerical Investigation of Spray Collapse in GDI with OpenFOAM, Fluids, 6, 3, 2021. Crossref
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Guo Genmiao, He Zhixia, Wang Qian, Lai Ming-Chai, Zhong Wenjun, Guan Wei, Wang Jiangquan, Numerical investigation of transient hole-to-hole variation in cavitation regimes inside a multi-hole diesel nozzle, Fuel, 287, 2021. Crossref
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Gärtner Jan Wilhelm, Loureiro Daniel D., Kronenburg Andreas, Modelling and Simulation of Flash Evaporation of Cryogenic Liquids, in Droplet Dynamics Under Extreme Ambient Conditions, 124, 2022. Crossref