Numerical Simulation and Experimental Study of Temperature Field of Strawberry Greenhouse Affected by Natural Ventilation

摘要

The effect of the air inlet and the air outlet of the strawberry greenhouse are very significant to the microclimate in greenhouse under the conditions of natural ventilation.This paper studied the numerical simulation and experiment of indoor temperature field of the strawberry greenhouse with natural ventilation in different areas of air inlet and air outlet.The impact of the natural ventilation on the microclimate of strawberry greenhouse has been explored.The results indicated that the air velocity and temperature in the air inlet effected on the temperature distribution within the greenhouse,and the temperature near the air inlet was susceptible to the outdoor environmental parameters.The general trend of the variation of the indoor temperature in the greenhouse decreased with increasing the sizes of the air inlet and the air outlet.The overall trend of temperature gradient is similar within the greenhouse.