This paper reports the background, status, and current outcome of a collaborative European Union sponsored international project, which aims to promote computer modeling and simulation of energy in buildings by creating hypertextbased self-Leaming course material and publishing it on the World Wide Web.

In modem livestock buildings the design of ventilation systems is important in order to obtain good air quality. The use of Computational Fluid Dynamics for predicting the air distribution makes it possible to include the effect of room geometry and heat sources in the design process. This paper presents numerical prediction of air flow in a livestock building compared with laboratory measurements. An example of the calculation of contaminant distribution is given, and the future possibilities of the method are discussed.