A systematic analysis of the ventilation process in greenhouses was performed with the use of computational fluid dynamics (CFD). First, the validity of the model assumptions was established by comparing the numerical results with experimental data. A good agreement between the numerical data and the experimental measurements was found if a two-scale turbulence model is applied in the CFD simulation. Then, the influence of design characteristics, such as the greenhouse length, on the ventilation was examined in the case of a typical Mediterranean-type greenhouse. It was demonstrated that CFD is a powerful tool for developing improved designs with respect to ventilation efficiency but the results cannot be generalized. Therefore, a systematic investigation of the most greenhouse types is necessary.
Analysis of the efficiency of greenhouse ventilation using computational fluid dynamics
SCARASCIA MUGNOZZA, Giacomo
1997-01-01
Abstract
A systematic analysis of the ventilation process in greenhouses was performed with the use of computational fluid dynamics (CFD). First, the validity of the model assumptions was established by comparing the numerical results with experimental data. A good agreement between the numerical data and the experimental measurements was found if a two-scale turbulence model is applied in the CFD simulation. Then, the influence of design characteristics, such as the greenhouse length, on the ventilation was examined in the case of a typical Mediterranean-type greenhouse. It was demonstrated that CFD is a powerful tool for developing improved designs with respect to ventilation efficiency but the results cannot be generalized. Therefore, a systematic investigation of the most greenhouse types is necessary.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
