- Integration of CiNii Books functions for fiscal year 2025 has completed
- Trial version of CiNii Research Knowledge Graph Search feature is available on CiNii Labs
- 【Updated on November 26, 2025】Regarding the recording of “Research Data” and “Evidence Data”
- Incorporated Jxiv preprints from JaLC and adding coverage from NDL Search
Droplet Breakup Model in Spray Combustion SimulationBased on Measurements of Droplet Disintegration Mechanisms
-
- Yamashita Tomohiro
- Doshisha University, School of Engineering, Mechanical Engineering Major
-
- Kimura Ippei
- Doshisha University, School of Engineering, Mechanical Engineering Major
-
- Matsuda Dai
- Doshisha University, School of Engineering, Mechanical Engineering Major
-
- Nishimura Kanako
- Doshisha University, School of Engineering, Mechanical Engineering Major
-
- Matsumura Eriko
- Doshisha University
-
- Senda Jiro
- Doshisha University
Bibliographic Information
- Published
- 2022
- DOI
-
- 10.20485/jsaeijae.13.4_155
- Publisher
- Society of Automotive Engineers of Japan, INC
Search this article
Description
ABSTRACT: A breakup model used in spray combustion simulations was developed to predict the breakup process of spray droplets, which has large influences on the mixture formation and the combustion process in internal combustion engines. Taylor Analogy Breakup (TAB) Model is widely used as a droplet breakup model. Improved TAB (ITAB) Model has been developed by improving model constants and the breakup/non-breakup boundary condition of TAB Model. ITAB Model reproduces the dimensionless breakup time based on the observation results of the single droplet breakup behavior and CFD simulation results. In this study, calculation methods of droplet diameter and droplet velocity after breakup in ITAB Model are modified to avoid fitting model constants during spray analysis. Droplet diameter after breakup is determined by calculating Sauter Mean Diameter and using the droplet diameter distribution after breakup based on the observation results of the single droplet breakup behavior. The calculation constant for Sauter Mean Diameter is a function of Weber number to reproduce the breakup phenomenon of single droplets. Droplet velocity after breakup is calculated based on the energy conservation law of droplets used in Enhanced TAB Model. This model shows that Sauter Mean Diameter after breakup is almost same and perpendicular motion of droplets after breakup is more active than TAB Model. This model also considers the effects of the fuel physical properties on breakup characteristics. Model analysis shows that droplet diameter after breakup of the high boiling point component fuel is larger under same conditions and the effect of temperature change is larger than that of the low boiling point component fuel.
Journal
-
- International Journal of Automotive Engineering
-
International Journal of Automotive Engineering 13 (4), 155-162, 2022
Society of Automotive Engineers of Japan, INC
- Tweet
Keywords
Details 詳細情報について
-
- CRID
- 1390012114415711104
-
- ISSN
- 21850992
- 21850984
-
- Text Lang
- en
-
- Data Source
-
- JaLC
- Crossref
- OpenAIRE
-
- Abstract License Flag
- Disallowed
