## Abstract

In the summer 1988 13 countries under the International Energy Agency established a cooperative work - Annex 20. This Annex is divided into two subgroups where Denmark contributes in subtask 1.

This contribution is giving a historical background for the establishment and the contents of Annex 20. The purpose of Annex 20 is to carry out simulations and full-scale experiments and to compare these investigations. This is done to support a more common use of advanced numerical calculations in engineering flow calculations within the field of ventilation.

In the project it is possible for the countries to make investigations which are of particular interest for them in order to increase the understanding of the complicated flow patterns in ventilated buildings.

This contribution is giving a historical background for the establishment and the contents of Annex 20. The purpose of Annex 20 is to carry out simulations and full-scale experiments and to compare these investigations. This is done to support a more common use of advanced numerical calculations in engineering flow calculations within the field of ventilation.

In the project it is possible for the countries to make investigations which are of particular interest for them in order to increase the understanding of the complicated flow patterns in ventilated buildings.

Original language | English |
---|

Place of Publication | Aalborg |
---|---|

Publisher | Institut for Bygningsteknik, Aalborg Universitet |

Number of pages | 12 |

Publication status | Published - 1990 |

Series | Indoor Environmental Technology |
---|---|

Number | 13 |

Volume | R9042 |

ISSN | 0902-7513 |

### Bibliographical note

Presented at "Nordisk Indeklima - arbejdsmiljø og energikonference", Copenhagen, August, 1990PDF for print: 18 pp.

## Keywords

- Aircondition
- Numerical Prediction
- Air Distribution
- K Standard ∈ Model
- Ventilation
- Computational Fluid Dynamics
- Inlet Momentum Flow
- Three-Dimensional Room Flow