期刊论文

CFD numerical simulation of temperature field under spray condition in aeroponics cultivation box

中文

湖南农业大学学报(自然科学版)

1007-1032

2019

45

1

103-107

10.13331/j.cnki.jhau.2019.01.018

2017YFD0700903-2:教育部重点研发计划 2016NK2117:湖南省科学技术厅重点研发计划

本校为第一机构

分析气雾栽培箱外部温度为18 ℃和20 ℃,18 ℃和22 ℃营养液雾化后,气雾栽培箱内部和生菜根系周围温度的变化,采用CFD(计算流体动力学)方法对气雾栽培箱内部温度场进行数值模拟与预测。结果表明:当气雾栽培箱外部温度18 ℃时,22 ℃营养液雾化后,气雾栽培箱内部温度的实测值和模拟值的差值均小于2.9 ℃,平均相对误差为8.1%,均方根误差为1.2 ℃。所建CFD模型准确有效。

The temperature inside the aeroponics cultivation box and the temperature of the lettuces' roots were simulated and predicted by computational fluid dynamics (CFD) method, after the atomization of the nutrient solution at 18 ℃ and 22 ℃ under the external temperature of the aeroponics cultivation box at 18 ℃ and 20 ℃. The results show that the difference between the measured value and the simulated value of the internal temperature of the aeroponics cultivation box is less than 2.9 ℃ after the atomization of the nutrient solution at 18 ℃ a...