Influence of piston geometry on the operation of internal combustion engine

V diplomski nalogi so primerjane tri različne geometrije bata oz. vdolbine znotraj čela bata dizelskega motorja. Prikazan je postopek od zasnove geometrijskih oblik, definiranja robnih pogojev, izdelave računskih mrež, numerične simulacije, prikazovanje želenih rezultatov pa vse do primerjave le teh. Več kot očitno so spremembe geometrij vplivale na dogajanje znotraj zgorevalne komore. Ključni rezultati zavzemajo spremembo tlaka, spremembo temperature in nastanek emisij. Rezultati in primerjava le teh so opisani na koncu diplomskega dela.The diploma thesis compares three different piston geometries or. recesses inside the front of the Diesel engine piston. The procedure from the design of geometric shapes, defining boundary conditions, meshing, numerical simulation, displaying the desired results all the way to comparing them is presented. More than obvious, the changes in the geometries affected what was happening inside the combustion chamber. The key results are the change in pressure, the change in temperature and the formation of emissions. The results and comparison of these are described at the end of the thesis