Post Doc in Dynamic Coupling of Vehicle Power Losses and Motion Cooling

Royal Institute of Technology Department of Engineering Mechanics


Postdoc in Dynamic Coupling of Vehicle Power Losses and Motion Cooling

Kungliga Tekniska högskolan, Skolan för teknikvetenskap

KTH Royal Institute of Technology in Stockholm has grown to become one of Europe’s leading technical and engineering universities, as well as a key centre of intellectual talent and innovation. We are Sweden’s largest technical research and learning institution and home to students, researchers and faculty from around the world. Our research and education covers a wide area including natural sciences and all branches of engineering, as well as architecture, industrial management, urban planning, history and philosophy.

The Centre for ECO2 Vehicle Design, at the Department of Engineering Mechanics at KTH, performs multidisciplinary research in order to enable resource efficient vehicle design in the future. Our main research focus is on the vehicle as part of the wider transport system, taking into account requirements set on all system levels. The Centre collects a broad competence within the fields of vehicle concepts, lightweight structures, sound and vibrations, vehicle aerodynamics, rail vehicle technology and road vehicle dynamics.

The Centre for ECO2 Vehicle Design is a close collaboration with the Swedish based vehicle industry and more information regarding the Centre and the partners can be found at

Job description

The Centre for ECO2 Vehicle Design is now seeking a Post Doctor within the field of modelling transient cooling in vehicles.

In passive convective cooling of electrical components on vehicles, both the temperature of the component to be cooled and the cooling effect of the flow are often coupled through the operational characteristics of the vehicle. This interaction is transient and load cycle dependent, as the temperatures of the component and the flow vary continuously, and so are not stationary for a given vehicle speed. In addition to this transient coupling of heating and cooling, there is also a spatial coupling when components are placed downstream of another. As the air cools one component, its temperature rises, and it becomes less effective as coolant for subsequent downwind components.

The project will focus on developing models that can be used to explore transient effects and dynamic coupling between the heat source and sink within the context of rail vehicle operation. First, a model for the coupling the heat generation and convective cooling during vehicle operation will be developed. This will be done using available data for specific components of interest and operational loads cycles. Then, the dynamics of this coupling will be explored to identify under which conditions vehicle motion cooling cannot provide sufficient cooling.

This could be used, for example, to avoid driving behaviours that lead to heat build-up. The combination of multi-stage sequential cooling will also be explored to understand under what environmental and operational conditions certain components may be at risk of overheating. This research will improve planning layouts of components and/or thermal management in novel vehicle constructions.

What we offer

  • International workplace.
  • A leading technical university that creates knowledge and expertise for a sustainable future.
  • Here you get colleagues with high ambitions in an open, curious and dynamic environment.
  • Help to relocate and be settled in Sweden and at KTH



A doctoral degree or an equivalent foreign degree within the field of Engineering Physics, Mechanical Engineering or similar, obtained within the last three years prior to the application deadline.(Time may be prolonged due to sick- or parental leave, if so - please, state this in your resume)

Good English skills, both orally and in writing.

Preferred qualifications

  • Scientific skills.
  • Educational ability.
  • Vehicle aerodynamics, heat and fluid flow, mathematical modelling

We are looking for a strongly motivated person, who is able to cooperate and to work independently as well as in an international research team.
Well-developed analytical and problem solving skills are a requirement.

For KTH and the Centre for ECO2 Vehicle Design awareness of diversity and equal treatment issues with a particular focus on gender equality are of high importance.

Great emphasis will be placed on personal competence and suitability.

Trade union representatives

You will find contact information to trade union representatives at KTH's webbpage.


Log into KTH's recruitment system in order to apply to this position. You are the main responsible to ensure that your application is complete according to the ad.

The application must include:

  • CV including relevant professional experience and knowledge.

  • Copy of diplomas and grades from your previous university studies. Translations into English or Swedish if the original documents have not been issued in any of these languages.

  • Brief account of why you want to conduct research, your academic interests and how they relate to your previous studies and future goals. Max two pages long.

  • Publication list of previous publications.

Your complete application must be received at KTH no later than the last day of application, midnight CET/CEST (Central European Time/Central European Summer Time).

Temporary employment up to 12 months.

About the employment

The position is a 1-year position with the possibility to extend one extra year.
Maximum 20 % of teaching may be included in the position.

A position as a postdoctoral fellow is a time-limited qualified appointment focusing mainly on research, intended as a first career step after a dissertation.
The position offered is for, at the most, two years.


Gender equality, diversity and zero tolerance against discrimination and harassment are important aspects of KTH's work with quality as well as core values in our organization.

For information about processing of personal data in the recruitment process please read here.

We firmly decline all contact with staffing and recruitment agencies and job ad salespersons.

Disclaimer: In case of discrepancy between the Swedish original and the English translation of the job announcement, the Swedish version takes precedence.

Type of employment Temporary position longer than 6 months
Contract type Full time
First day of employment According to agreement
Salary Monthly salary
Number of positions 1
Working hours 100%
City Stockholm
County Stockholms län
Country Sweden
Reference number S-2020-0818
Carlos Casanueva, Inst Teknisk Mekanik,
Published 05.Jun.2020
Last application date 20.Jul.2020 11:59 PM CET

In your application, please refer to