Computational Engineering

01 Jan 2015 · Happy New Year [news]

HvZ Computational Engineering wishes everyone a happy, healthy and successful 2015! [...]

01 Dec 2014 · Kelvin-Helmholtz instabilities [news]

When a single fluid contains layers that move with different velocities, vortices are formed on the interface. This phenomenon is known as Kelvin-Helmholtz instability. [...]

01 Nov 2014 · Unmixing with Cahn-Hilliard [news]

A complicated topic in computer simulation is the area of multi-species flow, in particular, the interface between the two species. An interesting approach to facilitate the numerical difficulty in dealing with the interfaces, is by solving an additional problem known as the Cahn-Hilliard equation. Cahn-Hilliard is a so-called diffuse interface model and describes the interface not as a discontinuity but rather as a smooth transition between both species. [...]

01 Oct 2014 · Natural convection [news]

The density of warm fluids is generally smaller than of colder fluids. Therefore, when the temperature of a fluid increases in a non-uniform manner, a convective airflow is initiated. An everyday example is the airflow near a radiator. [...]