Computational fluid dynamics studies on the influence of fuel variability on diesel engine operation
Authors
Huang, Mingdi Michael
ORCID
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Other Contributors
Oehlschlaeger, Matthew A.
Sahni, Onkar
Zhang, Lucy T.
Plawsky, Joel L., 1957-
Sahni, Onkar
Zhang, Lucy T.
Plawsky, Joel L., 1957-
Issue Date
2015-08
Keywords
Mechanical engineering
Degree
PhD
Terms of Use
This electronic version is a licensed copy owned by Rensselaer Polytechnic Institute, Troy, NY. Copyright of original work retained by author.
Full Citation
Abstract
Increasing environmental and economic concerns have long motivated research into improving engine performance and efficiency. Computational Fluid Dynamics (CFD) simulations containing chemical reactions to describe combustion chemistry are a critical tool in engine development; however, chemical kinetic mechanisms, which describe the essential ignition and combustion processes in an engine, tend toward the complex and detailed as they become more accurate in modeling the elementary chemical interactions. Such complex chemical mechanisms are computationally expensive – implementing them in a realistic applied simulation, such as combustion in a diesel engine, causes that simulation to become computationally prohibitive. Here, CFD simulations of spray ignition and combustion in a constant volume environment and a diesel engine are demonstrated using global and reduced reaction kinetics models. These simulations are shown to be in reasonably good quantitative agreement with experiment and very good agreement for the variation of spray ignition delay with fuel variation.
Description
August 2015
School of Engineering
School of Engineering
Department
Dept. of Mechanical, Aerospace, and Nuclear Engineering
Publisher
Rensselaer Polytechnic Institute, Troy, NY
Relationships
Rensselaer Theses and Dissertations Online Collection
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