Natural Ventilation Induced Airflow Patterns Measured by an Ultrasonic Anemometer in Venlo-type Greenhouse Openings
نویسندگان
چکیده
Airflow distribution in the greenhouse windows is important for us to understand the mechanism of natural ventilation and thus is helpful for designers to have the optimal ventilation system. The full-scale measurements of the airflow in a large Venlo-type greenhouse were carried out by use of an ultrasonic anemometer. The clear airflow patterns around the greenhouse under leeside ventilation were found by polar plots. The air velocity in a greenhouse central ventilator was proposed as a function of the opening angles both in leeside and windward sides.
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