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CFD modelling of swirling flows in automotive aftertreatment systems

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  • Full or part time
    Dr Aleksandrova
  • Application Deadline
    Applications accepted all year round

About This PhD Project

Project Description

The Project


This is a PhD proposal to investigate potential and limitations of numerical modelling of swirling flows in automotive catalytic converters. The project is directly relevant to the reduction of carbon emissions as it deals with the design of aftertreatment systems for small, turbocharged car engines.

Catalytic converters are used for removal of toxic emissions from car exhaust. Uniformity of the flow inside the catalyst is important for maintaining high species conversion efficiency, and also affects catalyst durability. Recent trend to use turbochargers on engines results in swirling flow entering the catalyst. The effect of swirl on the flow distribution inside the catalyst is not well understood.

The purpose of this project is to provide a robust model capable of capturing most of the flow features in such a complex system. It will involve modelling the flow in StarCCM+ using a selection of turbulence models (RANS, DES and LES) combined with in-house modelling approaches such as porous medium, hybrid and oblique entry models used by university researchers in the past. The model will be validated by using measurements performed within another (currently running) PhD programme.

Duration: Full Time 3 years Fixed Term or Part Time 5 years Fixed Term

About the Centre/Department


Our research in Mobility & Transport works across our faculties and focuses on the design and engineering of future transport systems, including the growing influence of the internet and connectivity. The focus is on inclusive, sustainable and safe transport integrating the strongest research elements in design and engineering.

The successful applicant will work with the group of researchers with more than 20 years of experience in engine and emissions research. We are one of a small number of leading European research groups active in this field providing both technical expertise and dedicated test facilities. The research is supported by two well-equipped laboratories: a computerised engine test cell and an advanced flow laboratory.

Our research involves computational and experimental studies and centres around the development and validation of computer software for the prediction of the performance of emission after-treatment systems associated with Diesel and spark-ignition (SI) engines. An important strand is understanding the multi-physics associated with these systems, namely the fluid flow, heat and mass transfer and heterogeneous kinetic processes.

Successful Applicants


Successful applicants will have:
- A minimum of a 2:1 first degree in a relevant discipline/subject area with a minimum 60% mark in the Project element or equivalent with a minimum 60% overall module average, or

- A Masters Degree in a relevant subject area will be considered as an equivalent. The Masters must have been attained with overall marks at merit level (60%). In addition, the dissertation or equivalent element in the Masters must also have been attained with a mark at merit level (60%).

- The potential to engage in innovative research and to complete the PhD within a prescribed period of study.

- Language proficiency (IELTS overall minimum score of 7.0 with a minimum of 6.5 in each component).

Additionally;
- The candidate is expected to have a solid Fluid Mechanics background and good understanding of mechanisms and properties of turbulent flows. Modelling experience is beneficial.

Find out how to apply: http://www.coventry.ac.uk/research/research-students/how-to-apply/?id=88848

See the website: http://www.coventry.ac.uk/research/research-students/research-studentships/cfd-modelling-of-swirling-flows-in-automotive-aftertreatment-systems/
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