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Applied Sciences
Special Issues
Spray & Engine Diagnostics
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Spray & Engine Diagnostics

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Mechanical Engineering".

Deadline for manuscript submissions: closed (31 December 2021) | Viewed by 2192

Special Issue Editor

Prof. Dr. Tsuneaki Ishima

E-Mail Website
Guest Editor
Division of Mechanical Science and Technology, Graduate School of Science and Technology, Gunma University, 1-5-1 Tenjin, Kiryu, Gunma 376-8515, Japan
Interests: laser measurement; laser Doppler anemometry; phase Doppler anemometry; spray; multiphase flow; fluid dynamics; fluid engineering

Special Issue Information

The engine is one of the most important pieces of equipment that plays a large role in day-to-day human life. Thus, high-performance engines with low fuel consumption, clean exhaust gas, and high thermal efficiency are required. Fuel spray is one of the key technologies for realizing the high-performance engine, and as it is improving day by day, detailed information regarding spray characteristics is necessary. In particular, to improve engine and fuel spray technology, diagnostics is of great importance. This Special Issue on “Spray and Engine Diagnostics” is of interest to all researchers and developers working on engines and fuel spray. In our laboratory, for instance, fuel spray and flow related with engines are evaluated using a combination of laser techniques and visualizations. 

Prof. Dr. Tsuneaki Ishima
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Applied Sciences is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • internal combustion engine
  • spray characterization
  • laser measurements
  • flow visualization
  • in cylinder flows
  • engine lubrications
  • LIF
  • PIV
  • LDA/PDA

Published Papers (1 paper)

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Research

16 pages, 3555 KiB  
Article
Effect of Fuel Mass Flow at the End of Injection on Cavitation and Gas Ingestion in the Nozzle
by Hua Wen, Yulong Jiang and Jinglong Ma
Appl. Sci. 2021, 11(1), 258; https://0-doi-org.brum.beds.ac.uk/10.3390/app11010258 - 29 Dec 2020
Cited by 3 | Viewed by 1773
Abstract
The fuel flow in the diesel engine nozzle has a vital impact on the fuel atomization and spray, and the fuel mass flux affects the internal flow of the nozzle. The visual experimental platform for a transparent nozzle was built to obtain the [...] Read more.
The fuel flow in the diesel engine nozzle has a vital impact on the fuel atomization and spray, and the fuel mass flux affects the internal flow of the nozzle. The visual experimental platform for a transparent nozzle was built to obtain the image of fuel flow in a nozzle with a small sac combining the back-light imaging technology and a high-speed framing camera. A two-phase three-component numerical model, based on the OpenFOAM solver, was calculated to quantitatively analyze gas ingestion and cavitation in the nozzle. The results indicate that at the end of injection (EOI), fuel cavitation and external air backflow (gas ingestion) occur successively in the nozzle, and both phenomena first appear in the orifice and then transition to the sac. Cavitation collapse is the major factor of gas ingestion, and the total amount of gas ingestion and cavitation mainly depends on the sac. The outflow of fuel largely depends on the total amount of cavitation and the inertial outflow of fuel at the EOI. The type of cavitation in the nozzle mainly presents annular and bulk cavitation, the former primarily exists in the sac, while the latter is established within the orifice. Therefore, larger mass flows will contribute to stronger cavitation and gas ingestion. Full article
(This article belongs to the Special Issue Spray & Engine Diagnostics)
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