Many blueberry farmers use an open-sided hoop-type greenhouse to enhance agricultural output. A common problem in multi-span greenhouses is the loss of ventilation that scales with the increase in span number. This paper examines the effects of reducing the greenhouse height and adding covers to the formerly open sides in a two-span greenhouse to understand better flow characteristics that may contribute to energy loss. It concludes that lowered height can create a more even temperature distribution, while side covers make the flow direction more predictable but decrease flow speed and increase internal temperature. This paper recommends adding side covers with controllable height to the greenhouse to increase the temperature during cooler periods of the day.
Larz Johnston, School of Engineering and Technology, Central Queensland University, Bundaberg Campus. Queensland 4670, Australia
Ramadas Narayanan, School of Engineering and Technology, Central Queensland University, Bundaberg Campus. Queensland 4670, Australia
Mohan Reddy Moola, Department of Mechanical Engineering, Faculty of Engineering and Science, Curtin University, Sarawak, Malaysia
CFD Letters publishes as rapidly as possible manuscripts of high quality which addresses eminent topics of computational fluid dynamics theory and applications. Being an international, peer-reviewed, online and open access journal, CFD Letters presents a world-wide forum for the dissemination of knowledge among engineers, scientists and mathematicians working in the field of computational fluid mechanics.