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Title: On the wall jet from the ring crevice of an internal combustion engine

Abstract

Numerical simulations and experiments of the jetting of gases from the ring crevices of a laboratory engine shortly after exhaust valve opening showed an unanticipated radial flow of the crevice gases into the main combustion chamber. We report well-resolved numerical simulations of a wall jet that show that this radial motion is driven by vorticity generation in the wall boundary layer and at the corner of the piston crown.

Authors:
 [1];  [2]
  1. Lawrence Livermore National Lab., CA (United States)
  2. Sandia National Labs., Livermore, CA (United States)
Publication Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
378945
Report Number(s):
UCRL-ID-124311
ON: DE96013662
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: May 1996
Country of Publication:
United States
Language:
English
Subject:
33 ADVANCED PROPULSION SYSTEMS; 42 ENGINEERING NOT INCLUDED IN OTHER CATEGORIES; 99 MATHEMATICS, COMPUTERS, INFORMATION SCIENCE, MANAGEMENT, LAW, MISCELLANEOUS; INTERNAL COMBUSTION ENGINES; JETS; WALLS; NUMERICAL SOLUTION; VORTICES; SIMULATION

Citation Formats

Cloutman, L D, and Green, R M. On the wall jet from the ring crevice of an internal combustion engine. United States: N. p., 1996. Web. doi:10.2172/378945.
Cloutman, L D, & Green, R M. On the wall jet from the ring crevice of an internal combustion engine. United States. https://doi.org/10.2172/378945
Cloutman, L D, and Green, R M. 1996. "On the wall jet from the ring crevice of an internal combustion engine". United States. https://doi.org/10.2172/378945. https://www.osti.gov/servlets/purl/378945.
@article{osti_378945,
title = {On the wall jet from the ring crevice of an internal combustion engine},
author = {Cloutman, L D and Green, R M},
abstractNote = {Numerical simulations and experiments of the jetting of gases from the ring crevices of a laboratory engine shortly after exhaust valve opening showed an unanticipated radial flow of the crevice gases into the main combustion chamber. We report well-resolved numerical simulations of a wall jet that show that this radial motion is driven by vorticity generation in the wall boundary layer and at the corner of the piston crown.},
doi = {10.2172/378945},
url = {https://www.osti.gov/biblio/378945}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed May 01 00:00:00 EDT 1996},
month = {Wed May 01 00:00:00 EDT 1996}
}