PhD Position in Luleå University of Technology Sweden

Doctoral position in Mechanical Engineering, Sustainable Energy Engineering, Technical Physics – Luleå University

Sweden

Department of Fluid Mechanics and Experimental Mechanics at Luleå University of Technology invites applications for a Doctoral position in snow mechanics at the division of fluid and experimental mechanics – 2022

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General Info

Position: Doctoral position
No. of Positions: 1
Research Field: , ,
Deadline to Apply: Expired
Joining Date: ASAP
Contract Period: 4 Years
Salary: According to standard norms

Workplace:
Department of Fluid Mechanics and Experimental Mechanics

Luleå University of Technology (LUT), Sweden

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Qualification Details

We are looking for a doctoral student with a master's degree in Mechanical Engineering, Sustainable Energy Engineering, Technical Physics or equivalent and who has a strong interest in and preferably experience from working and performing experiments in cold climates. You should have a good ability to work in a group as well as independently and an important characteristic is that you can take your own initiatives. You have good knowledge of English and are easy to express yourself in both speaking and writing. See also study plan for doctoral education in experimental mechanics: General syllabus for the Board of the faculty of science and technology

Responsibilities/Job Description

Goal

The goal of this project is to create a model-based calibration method based on a model for snow. The model is validated with the help of various snow measurements and brake tests. Today, the model is being developed and we are now looking for someone who can further develop and validate the model by planning, performing and analyzing snow measurements on different test tracks and classes of roads and under different weather conditions. With the help of the model, the calibration procedure will then be able to be improved, i.e. the reference friction measured by the Swedish Transport Administration, using the reference method for friction measurement, can be adapted to different weather conditions and snow types.

Implementation

The work will be carried out within the project Model-based friction calibration on winter roads at Luleå University of Technology with placement at the Department of Fluid and Experimental Mechanics. The project is financed by the Swedish Transport Administration and consists of two work packages, one of which focuses on modeling snow in order to ensure a reference bank for calibration values. Within the second work package, reference measurements and brake measurements are performed under controlled conditions on different test tracks for different types of snow and weather conditions to gather validation data for the model. Advantageously, some of the measurements will be performed in an indoor hall where as many parameters as possible can be varied in a controllable manner.

Subject description

Experimental Mechanics concerns the development of experimental methods in order to study phenomena in mechanics.

Description of the work

A doctoral position means both theoretical and practical work. The theoretical work within this project is linked to the validation of the snow model and the development of different measurement methods for data collection of snow parameters.

The practical work will mainly be linked to various measurement campaigns that will be carried out at various test sites in the Nordic region. A doctoral student position also includes training in scientific work in the form of publishing scientific work in journals and at conferences, as well as conducting compulsory and optional doctoral courses. In addition, a certain amount of departmental service is included, which can be participation in education in the university's undergraduate courses.

How to Apply?

Application Method: Online Application
Ref. No.: 1183-2022

Application Procedure

The application should include a CV, personal letter and copies of verified diplomas from high school and universities. Mark your application with the reference number below. Your application, including diplomas, must be written in English or Swedish.

About the Department/Section/Group

The Department of Fluid Mechanics and Experimental Mechanics at Luleå University of Technology conducts research that links to engineering aspects of snow and ice in the infrastructure and transport sector. We work closely with the Swedish Transport Administration, which is responsible for winter road maintenance on Sweden's state roads. Being able to measure and predict slippery road conditions and bad weather conditions linked to roads is important to minimize traffic accidents and make winter road maintenance more sustainable. But measuring slipperiness on the road is difficult both because of the normal traffic but also because so many different parameters affect the slipperiness, such as the proportion of snow and ice, temperature, tires, wind and implemented measures for winter road maintenance. Therefore, it is important to build knowledge about these parameters and how it can be used in winter road maintenance. This is also important information for the winter test facilities operating in the region and the custumers who use these facilities for tire and vehicle development. Increased knowledge of winter road conditions and winter road maintenance is therefore central to many activities in our northern region.

One of the parameters that controls how a snow surface reacts when a wheel is braked on the surface is how the snow grains are connected to each other. Therefore, it is important to understand how this strength of the snow depends on parameters such as temperature, wind and humidity. The compaction of snow is also a parameter that will affect the friction between a tire and the snow. These are issues for which there is currently no good data but are important in several areas such as tire development, ski development or snowmobile development.

About the Employer:

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Contact details

For questions about the position, contact Assistant Professor Johan Casselgren: [email protected]

Information about the department's other activities is available at: https://www.ltu.se/research/subjects/Experimentell-mekanik?l=en and https://www.ltu.se/research/subjects/Stromningslara?l=en

Union representatives:

SACO-S Kjell Johansson (+46)920-49 1529 [email protected], OFR-S Lars Frisk, (+46)920-49 1792 [email protected]

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