Home Journals Articles Updates About
CN
image
收藏切换
Acoustic Field Excitation and Regulation Characteristics of Iso-Octane Combustion Process
收藏切换
PDF
Liming Di1, 2, Qiang Ouyang1, Fuxiang Zhi1, Cheng Shi1
Transactions of CSICE | 2024, 42(1) : 26 - 34
Less
收藏切换
Transactions of CSICE | 2024, 42(1): 26-34
Acoustic Field Excitation and Regulation Characteristics of Iso-Octane Combustion Process
Full
Liming Di1, 2, Qiang Ouyang1, Fuxiang Zhi1, Cheng Shi1
Affiliations
  • 1.School of Vehicle and Energy，Yanshan University，Qinhuangdao 066004，China
  • 2.Hebei Key Laboratory of Special Delivery Equipment，Yanshan University，Qinhuangdao 066004，China
doi: 10.16236/j.cnki.nrjxb.202401004
Outline
收藏切换

The regulation mechanism of ultrasound on iso-octane combustion was analyzed from the macro and micro levels. The three-dimensional computational fluid dynamics model of the original engine was calibrated using the bench test data. Based on the method of physically embedding the dynamic grid sound source surface in the combustion chamber，the ultrasonic with 20kHz frequency and 300μm amplitude was successfully fed into the combustion chamber. Taking the difference between the cylinder pressure with and without ultrasonic wave feeding into the combustion chamber as the ultrasonic radiation pressure disturbance，the effects of ultrasonic field excitation on the ignition delay period，intermediate reaction components and sensitivity analysis of iso-octane were studied. By comparing and analyzing the simulation results of three ultrasonic-fed schemes S1—S3 with no ultrasonic-fed scheme S0，the results show that the S1—S3 schemes can advance the combustion phase，and the peak mole fractions of C3H6，IC4H8 and C2H4 in S2 and S3 are increased by 42.1%，24.7%，27.5% and 21.5%，9.6%，5.3%，respectively and the iso-octane burnout time of both schemes are advanced by 0.18s. When the equivalence ratio is 1 and the initial temperature is 1300K and 1700K，the ignition delay period is shortened by 31.8% and 6.4%，respectively and both promote to produce a large number of OH radicals.

iso-octane  /  combustion characteristics  /  combustion regulation  /  ultrasonic field excitation  /  ignition delay period
Liming Di, Qiang Ouyang, Fuxiang Zhi, Cheng Shi. Acoustic Field Excitation and Regulation Characteristics of Iso-Octane Combustion Process[J]. Transactions of CSICE, 2024 , 42 (1) : 26 -34 . DOI: 10.16236/j.cnki.nrjxb.202401004
Appendix
Less
Year 2024 volume 42 Issue 1
PDF
142
66
Cite this Article
BibTeX
Article Info
doi: 10.16236/j.cnki.nrjxb.202401004
  • Receive Date：2022-10-23
  • Online Date：2025-12-09
Article Data
Affiliations
History
  • Received：2022-10-23
  • Revised：2023-05-19
Funding
Affiliations
    1.School of Vehicle and Energy，Yanshan University，Qinhuangdao 066004，China
    2.Hebei Key Laboratory of Special Delivery Equipment，Yanshan University，Qinhuangdao 066004，China
References
Share
https://castjournals.cast.org.cn/joweb/nrjxb/EN/10.16236/j.cnki.nrjxb.202401004
Share to
QR

Scan QR to access full text

Cite this article
BibTeX
Citations
表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
关闭全屏
  • BibTeX
  • EndNote
  • RefWorks
  • TxT
Links
Articles
Latest Articles
Most Read
Collections
Updates
Events
News
Multimedia
About
About Us
Contact
No. 86 Xueyuan South Road, Haidian District, Beijing
100081
010-62199257
qkjq@cast.org.cn

Copyright © 2025 China Association for Science and Technology. All rights reserved. For all open access content, the relevant licensing terms apply.
Sponsored by the Office of the Leading Group for Cybersecurity and Informatization of CAST, and supported by Science and Technology Review Publishing House