Numerical Modeling of SparkIgnition in Internal Combustion Engines

Rafał Pyszczek , Jooyoung Han , P. Priesching , Andrzej Teodorczyk

Abstract

In this paper, we aim to develop a comprehensive ignition model for three-dimensional (3D)computationalfluid dynamics (CFD) combustion modeling in spark-ignited (SI) engines. Inthe proposed model, we consider the following aspects separately to model the spark igni-tion process comprehensively. An electrical circuit is solved for calculation of the energytransferred to the spark plasma channel. The spark itself is represented by computationalparticles for monitoring its motion and ignitability. Heat diffusion from the spark towardthe surrounding mixture is calculated with a one-dimensional (1D) model, resulting inthe temperature obtained at the surface of the spark channel. Based on the calculated tem-perature and interpolated pressure and local mixture composition, an instantaneous igni-tion delay time is read from tabulated values for every particle representing the sparkchannel. Thefinal ignitability criterion is defined by a precursor calculated with a zero-dimensional (0D) model, which accounts for the history of changes in spark surface temper-ature and local mixture properties. As soon as the precursor reaches a threshold value for agiven spark channel particle, aflame kernel is introduced at a position of the particle.Flame propagation is generally treated by the G-equation combustion model. Validationis performed by measurements of the spark discharge process in high-velocityflowfieldand single-cylinder AVL research engine. We demonstrate that the proposed model can cor-rectly reproduce the electrical circuit, spark channel dynamics, and overall engine perfor-mance
Author Rafał Pyszczek (FPAE / IHE)
Rafał Pyszczek,,
- The Institute of Heat Engineering
, Jooyoung Han
Jooyoung Han,,
-
, P. Priesching
P. Priesching,,
-
, Andrzej Teodorczyk (FPAE / IHE)
Andrzej Teodorczyk,,
- The Institute of Heat Engineering
Journal seriesJournal of Energy Resources Technology-Transactions of the Asme, [Journal of Energy Resources Technology, Transactions of the ASME], ISSN 0195-0738, e-ISSN 1528-8994
Issue year2020
Vol142
Pages022202-1-8
Publication size in sheets0.3
Keywords in Englishenergy conversion/systems, fuel combustion, power (co-) generation
ASJC Classification1906 Geochemistry and Petrology; 2102 Energy Engineering and Power Technology; 2103 Fuel Technology; 2105 Renewable Energy, Sustainability and the Environment; 2210 Mechanical Engineering
DOIDOI:10.1115/1.4044222
Languageen angielski
Score (nominal)100
Score sourcejournalList
ScoreMinisterial score = 100.0, 09-09-2020, ArticleFromJournal
Publication indicators WoS Citations = 0; Scopus SNIP (Source Normalised Impact per Paper): 2018 = 1.667; WoS Impact Factor: 2018 = 2.759 (2) - 2018=2.681 (5)
Citation count*
Cite
Share Share

Get link to the record


* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.
Back
Confirmation
Are you sure?