The study shows the numerical and experimental work on the field of ventilated brake discs for the reason of predicting the thermal as well as velocity field of the disc and the surrounding cooling air, with the aim to design the most cooling efficient disc with lowest temperature as possible after the breaking, which helps to prolong the life time of the disc. In this study we are dealing with disc problematic, aims, how to build up the numerical model for simulating the thermal-velocity field of the disc, PIV experiment, the measurement results, as well as the comparison of the numerical and experimental results to validate the numerical approach. At numerical simulation we are dealing with the steady state RANS simulation, using the SST turbulence model, where we are modelling only the periodical section of the disc. This way we get the velocity field through and around the disc and the convective heat lux which is dominant in the cooling process. With the time average of the PIV experimental result of the velocity field we retrieve the velocity profile only for the exit section of the cooling channel, which we compare with the numerical results. The analysis for the comparison shows that the best fitting is achieved with modelling as much cooling channels as possible and at the comparing computational mesh with the PIV discretization field. This shows that the methodology for simulating velocity and thermal field of ventilated brake disc is appropriate and that the proposed numerical model is correct.
B.06 Other
COBISS.SI-ID: 17522966This was a given lecture on the show of the exceptional scientific achievement for the year 2012 on the mechanical engineering field, which take place on the Chamber of Economy for Slovenia. The presentation covers the research work on the field of numerical modelling of thermal and velocity field for the air cooled ventilated brake disc, as well as the experimental work needed to estimate the correctness of the numerical results, as well as the simulation model. This is a research project which is so financed by the company CIMOS d.d.
E.01 National awards
COBISS.SI-ID: 17522454This was invited lecture on A.N. Podgorny Institute for Mechanical Problems, where we present our research work on the field of CFD (Computational Fluid Dynamics), especially our latest research work on the heat transfer and fluid flow of rotating elements. The aim was to attain some collaboration.
B.05 Guest lecturer at an institute/university
COBISS.SI-ID: 17159958