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PhD Scholarship Position in Experimental Turbomachinery

Applicants are invited to apply for a PhD scholarship in mechanical engineering at Chalmers University of Technology. The funds for this fellowship are available for 5 years. Applications are welcome before August 08, 2019.

The Department of Mechanics and Maritime Sciences (M2) conducts fundamental and applied research in all modes of transport to achieve sustainable technological solutions. M2 holds one of Sweden's most extensive simulator centres for navigation and propulsion of ships, as well as world class laboratories within combustion engineering and wind tunnels. The department also offers and contributes to bachelor and master programs in areas such as Shipping, Automotive and Mechanical Engineering, to mention a few. In addition, professional education is performed on both a national and international level, with specifically designed mission training for different societal actors within our ambition for lifelong learning. The department continuously strives to establish a cooperation between academia, industry, and society, with a great focus on utilization of our research results. M2 is characterized by an international environment with employees and students from around the world, as well as outstanding research and world class education. M2 consists of seven different divisions within the areas of engineering and maritime sciences, and one division of administration and support.

Information about the division andthe project

The Division of Fluid Dynamics carries out research in a wide range of applications such as aerospace (which is largest), automotive, wind power, hydropower, medicine, process industry, vehicle aerodynamics, shipping, and biomechanics. Almost every single research project is carried out in cooperation with a company. We do both numerical simulations and experiments. We develop our own in-house CFD codes for both incompressible and compressible flow, aero and vibro-acoustics as well as system analysis of gas turbines and we are very active in the OpenFOAM community. We have a fully equipped laboratory with three large wind tunnels, full set of PIV and IR imaging equipment. We do research on turbulent incompressible and compressible single and multiphase flows through numerical and experimental research and develop new and improved turbulence and multiphase models and experimental techniques for both fundamental and real-world flows. We frequently build dedicated experimental facilities in collaboration with industry in order to better understand fluid flow details. The division also works on flow induced noise applied to aerospace and automotive. In the turbomachine group, the research is focused on turbomachinery and propulsion engineering, developing new fluid machinery and gas turbine system analysis. The research also includes air traffic management.

This PhD project will be conducted at the experimental fluid dynamics research group and facilities of Chalmers Laboratory of Fluids and Thermal Science http://www.chalmers.se/en/departments/m2/simulator-labs/labs/chalmerswindtunnels/Pages/default.aspx. The group has long-term expertise on experimental research of future engine concept designs and close cooperation with GKN Aerospace Sweden. The Laboratory of Fluids and Thermal Science is a world-class (top 50) lab, with a fully equipped set of hardware resources for experimental research at the forefront of fluid dynamics and heat transfer. The lab has several large tunnels for turbomachinery research and a large, high-quality, low-turbulent general-purpose wind tunnel. The base for the laboratory equipment comprises several advanced imaging systems (PIV and IR), and a complete set of hardware resources for flow and temperature measurements.

The PhD position is funded by a large Clean Sky 2 project devoted to the efficiency improvement of the geared turbofan engines. The PhD study will focus on the low-pressure expansion system of an aero engine which includes the Low-Pressure Turbine (LPT), the Turbine Rear Structure (TRS) and the core exhaust nozzle. A good aerodynamic design of the low-pressure expansion system is crucial for achieving low pressure losses, minimum disturbances to the LPT and a well-behaved core jet flow. To further increase the engine efficiency and reach CO2 emission targets, designs are needed that can withstand higher temperatures and temperature variations, operate under more severe LPT off-design conditions, present lower pressure losses, and be lighter and still provide performance benefits.

Several novel geometries of the TRS and the gains of the aerodynamic integration of the TRS and the core exhaust nozzle will be studied experimentally by the PhD student.

Major responsibilities

As a PhD student, the major responsibilities are to pursue your own doctoral studies. You are expected to develop your own scientific concepts and communicate the results of your research verbally and in writing in English.

- Teaching duty and other department duties for the minimum amount of 10% of total working hours.

- Full-time temporary employment for 4.5-5 years depending on the amount of department duties, where 10% is a minimum.

Full-time temporary employment.The position is limited to a maximum of five years.

Qualifications

To qualify as a PhD student, you must have a master’s level degree corresponding to at least 240 higher education credits in Mechanical Engineering, Aerospace Engineering, Mathematics, Physics or in a relevant field of turbomachinery or fluid mechanics. As you will work in close collaboration with an eminent EU aeronautic enterprise, sound verbal and written communication skills in English are required.

We believe that you are a motivated person, with a curiosity and a genuine wish to learn more and develop your skills and knowledge further in the fields of research. You have an analytical ability and you like to work in interdisciplinary projects, and you have the ability to discuss and communicate your work with people of different backgrounds.

- Profound knowledge of mathematics and physics.

- Skills in CAD software, LabVIEW and Matlab programming.

- Knowledge in experimental methods of fluid dynamics research (experimental turbomachinery, hot-wire anemometry, PIV).

- Swedish is not required, but you will be encouraged to learn Swedish during employment.

Chalmers offers a cultivating and inspiring working environment in the dynamic city ofGothenburg.

Read more aboutworking at Chalmersand ourbenefitsfor employees.

Application procedure

The application should be marked with Ref 20190399 and written in English.

CV: (Please name the document: CV, Family name, Ref. number)

CV

Other, for example previous employments or leadership qualifications and positions of trust.

Two references that we can contact.

Personal letter: (Please name the document as: Personal letter, Family name, Ref. number)

- Introduce yourself

- Describe your previous research fields and main research results

- Describe your future goals and future research focus

Copies of bachelor and/or master's thesis.

Attested copies and transcripts of completed education, grades and other certificates, eg. TOEFL test results.

Application deadline: 8 August 2019

Research Prof. Valery Chernoray, M2/Fluid Dynamics, valery.chernoray@chalmers.se, +46-31-772-5030


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