Theoretical and numerical study of auto-ignition

Project description

Internal combustion engines are an essential part of our modern life. At the same time, they have a significant contribution to the increased level of greenhouse gas emissions. As a result, many researchers have devoted their time to develop highly efficient engines with a low level of emission produced. This requires a sound understanding of the combustion process inside the internal combustion engines. Auto-ignition is the main driver of the combustion initiation in a diesel engine. Furthermore, it is a major drawback in developing more efficient spark ignition engines with higher compression ratios. In this type of engine, ignition is initiated with a spark plug, and increasing the compression ratio more than an acceptable level will lead to auto-ignition of the end gas, therefore resulting in an unwanted phenomenon known as ‘engine knock’.  
 
The aim of this project is to gain an improved understanding of auto-ignition characteristics under engine-relevant conditions using theory and numerical simulation.  This project will involve high-fidelity simulation of turbulent combustion and therefore a strong background in combustion and computational fluid dynamics is desirable.
 
Further information: http://people.eng.unimelb.edu.au/mohsent/
 

Project team

Leader: Mohsen Talei

Collaborators: Yi Yang

Other projects

Optimisation of resources and infrastructure projects

Research Centre

Advanced Centre for Automotive Research and Testing (ACART)

Disciplines

Mechanical Engineering

Domains

Optimisation of resources and infrastructure

Keywords

combustion and emissions; energy efficiency; fluid dynamics; fluid mechanics