1 Postdoctoral position on “Fluid physics in engine cylinder flow with emphasis on PIV measurements of the inflow stroke” in Sweden | KTH - Royal Institute Of Technology

KTH Royal Institute of Technology in Stockholm is the largest and oldest technical university in Sweden. No less than one-third of Sweden’s technical research and engineering education capacity at university level is provided by KTH. Education and research spans from natural sciences to all branches of engineering and includes Architecture, Industrial Management and Urban Planning. There are a total of 13,400 first and second level students and almost 1,900 doctoral students. KTH has 4,900 employees.

The School of Engineering Sciences carries out a wide range of research at the international front line, from fundamental disciplines such as Physics and Mathematics, to Engineering Mechanics with applications such as Aeronautics and Vehicle Engineering. We also offer university degree programs in Engineering Physics, Vehicle Engineering, and ‘Open entrance’, as well as a number of international masters programmes.

KTH Mechanics houses Sweden’s leading research environment in fluid mechanics for both basic and applied fluid dynamics research. The researchers within the department participate in several research centres at KTH, among them the Linné FLOW Centre, one of twenty Centres of excellence that was chosen by the Swedish Research Council (VR) in 2006 and CCGEx, a competence centre focused on gas exchange for internal combustion engines:

KTH Mechanics invites applications for a postdoc position dealing with the flow physics of the inflow stroke in an engine cylinder. The project is sponsored by the Swedish Energy Agency (pending final approval) and is carried out in collaboration with Scania CV and Volvo GTT.

Project description

The project will focus on the intake stroke in a model-engine cylinder of a heavy-duty diesel engine, utilizing time-resolved, stereoscopic (and in a later stage tomographic) particle image velocimetry (PIV) to study the flow inside the cylinder. The first part of the study involves designing a suitable experimental setup that will be able to simulate both a moving piston and moving intake valves and also allow stereoscopic PIV measurements of the flow in the cylinder. The second part will be studies of the flow under various conditions, especially studies of the swirl and tumble motions in the cylinder, using both standard and advanced evaluation techniques, as for example proper orthogonal decomposition (POD).

Qualifications:

Applicants should have a recent PhD within experimental fluid mechanics. Practical experience of PIV measurements in complex flows, but also other measurement techniques such as hot-wire anemometry and/or laser Doppler velocimetry (LDV) are desirable. Experience of advanced data-analysis methods such as POD is also expected of the successful candidate. Since collaboration with industry will be part of the study a general knowledge and interest in combustion engines is important.

Furthermore, a strong publication record in international journals and conferences is expected.

The candidates should have excellent skills in spoken and written English. Knowledge of Swedish is positive.

Application Deadline: 10th November 2014

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Hans Edin

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Per-Ove Öster

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