Evaldas Greiciunas

Background

I graduated Mechanical Engineering at Aston University Birmingham in 2014. During the degree I have done a placement at Cummins Turbo Technologies where I was a rotor systems engineer for 14 months and supported research and development of bearing systems for the next generation automotive turbochargers. During the time in industry I have also carried out individual research work for improvement of the research techniques.

Research interests

My main research interests are within fluid dynamics problems in engineering applications. I am particularly interested in heat transfer, aerodynamics research, power generation and mechatronics

PhD project outline

Future advanced military aircraft face an appreciable technical challenge to design thermal management systems of adequate capacity within installation constraints. Various heat exchangers (HE) constitute key components within aircraft thermal management systems and have a strong determining effect on overall system performance and feasibility. Novel manufacturing techniques (e.g. ALM) provide exciting opportunities for innovative HE geometry. This research will investigate and evaluate novel HE design for future aircraft thermal management and assess opportunities to improve thermal performance. Numerical thermofluids and CFD (such as OpenFOAM) modelling approaches will be used to develop validated models of existing and conceptual HE designs. The project will involve working alongside BAE Systems and a specialist HE supplier.

Read my PhD Thesis. 

Why I chose the CDT in Fluid Dynamics

I chose CDT in Fluid Dynamics because of the importance of optimised fluid dynamics behaviour in many engineering applications. Additionally, the CDT is highly interdisciplinary which gives a unique chance to understand fluid dynamics from vast range of perspectives and has good links with world leading industry and academic institutions, enabling to build a professional network.

Publications

Greiciunas, E., Borman, D., Summers, J. and Smith, S.J., 2019. A numerical evaluation of next generation additive layer manufactured inter-layer channel heat exchanger. Applied Thermal Engineering, 162, p.114304.

Greiciunas, E., Borman, D., Summers, J. and Smith, S.J., 2019. A multi-scale conjugate heat transfer modelling approach for corrugated heat exchangers. International Journal of Heat and Mass Transfer, 139, pp.928-937.

Greiciunas, E., Borman, D. and Summers, J., 2018, July. A Novel HE Corrugation Modelling Approach Utilising Conjugate Heat Transfer Methodology. In Proceedings of the Tenth International Conference on Computational Fluid Dynamics (ICCFD10), Barcelona, Spain (pp. 9-13).

Greiciunas, E., Borman, D. and Summers, J., 2017, October. Unsteady flow modelling in plate-fin heat exchanger channels. In ASME 2017 Heat Transfer Summer Conference. American Society of Mechanical Engineers Digital Collection.

Greiciunas, E., Wong, J., Gorbatenko, I., Hall, J., Wilson, M.C.T., Kapur, N., Harlen, O.G., Vadillo, D. and Threlfall-Holmes, P., 2017. Design and operation of a Rayleigh Ohnesorge jetting extensional rheometer (ROJER) to study extensional properties of low viscosity polymer solutions. Journal of Rheology, 61(3), pp.467-476.

Greiciunas, E., Borman, D. and Summers, J., 2016, July. Transitional fluid flow numerical modelling in sinusoidal heat exchanger channels. In International Conference on Computational Methods for Thermal Problems (No. 217349). Georgia Institute of Technology.