Simulation and Verification of Greenhouse Soil Wall Temperature Field by FEM Analysis
Hou Jialin
Wang Tao
Jiang Tao
Wang Xiufeng
Abstract：It was significant to study the temperature gradient and its change rule for evaluation of heat prevention performance , design and construction of greenhouse wall .The temperature data of greenhouse soil wall in Taian region were measured through multi -point temperature test instrument from December 2012 to February 2013 .The measured results coincided with that obtained through ANSYS FEM simulation .The fur-ther simulation results showed that the temperature of heat release and absorption layer in the wall changed pe -riodically in a day , while that of heat preservation and insulation layer changed smaller .The temperature at the wall bottom was higher , and changed a little in the horizontal direction , which was stable at 10~14℃for long time.The temperature was the highest at the place 0.2 m away from the inner surface of wall , and re-duced gently along the direction of wall thickness; the outer surface of the wall had the lowest temperature . Based on the simulated and measured results , the optimized soil wall of greenhouse in Taian area showed that the minimum thickness should be 2.2 m, including 0~0.5 m of heat release and absorption layer and 1.3~1 .7 m of heat preservation and insulation layer .
Keywords：GreenhouseSoil wallANSYS analysisTemperature fieldTaian area
Publication Date：2014-01-01
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：6( 7-11,15 )