CFD simulations of ships in high waves

With a growing competition in the marine industry, it is of great importance to have efficient methods of assessing new products. Hull design has traditionally relied on extensive model testing, but recent decades have shown that computational fluid dynamics (CFD) is a useful tool to reduce project costs and lead times. Since CFD simulations of a new hull geometry can be set up and run in a few days, they can play an important role in finding the right balance between parameters such as calm water resistance, propeller-hull interaction and seakeeping ability.

CFD simulation of GDI engine cold start

CFD simulation of cold start under extremely low ambient temperature in the internal combustion engine is very challenging due to both low evaporation and complicated evaporation processes of fuel. The objective of this study was to develop a computational tool to model evaporation processes of a wide range of multi-component fuels in the gasoline engines realistically and accurately. Particular interest was in GDI engine start operation under extremely cold conditions.

Modeling of in-cylinder flow using overset mesh

Overset mesh has gained popularity in modeling applications with complicated geometries due to its flexibility in handling arbitrary motion. This paper presents a study on application of overset mesh for in-cylinder flow using STAR-CCM+®. Different mesh strategies were investigated including trim, poly, and direct mesh. It was found that the results are similar from different mesh while ploy mesh overall produces more robust results than trim mesh.