期刊论文

Parameter calibration of discrete element simulation model for pig manure organic fertilizer treated with Hermetia illucen

Sun, S.

中文

农业工程学报

1002-6819

2020

36

17

212-218

10.11975/j.issn.1002-6819.2020.17.025

国家重点研发计划项目(2016YFD0501209) 农用动力平台智能化关键技术与装备研发(2018NK2061) 湖南农业大学“双一流”建设项目(SYL201802015)。

本校为第一且通讯机构

为准确快速获取黑水虻处理的猪粪有机肥颗粒的离散元仿真模型参数,该研究采用圆筒提升堆积物理试验与EDEM仿真结合的方法,选取"Hertz-MindlinwithJKR"作为接触模型,以堆积角为响应值,基于响应面法优化标定了黑水虻处理的含水率为43.6%的猪粪有机肥仿真参数。采用Design-Expert8.0.6设计Plackett-Burman试验,筛选出对堆积角有显著影响的参数,即有机肥泊松比、有机肥颗粒密度、有机肥-有机肥滚动摩擦系数。通过最陡爬坡试验确定了显著参数的最优值区间,进一步以有机肥堆积角为响应值,基于Box-Behnken试验获得堆积角与显著性参数的二阶回归模型,以物理试验测得的堆积角为响应目标,针对显著性参数进...

Pig manure treated by the Hermetia illucen was an organic fertilizer, to obtain the contact parameters of organic fertilizer accurately and quickly,, this work combine the method of a cylindrical lifting physical test with discrete element method, and simulation parameters of organic fertilizer of Hermetia illucen treated with pig manure with moisture content of 43.6% was calibrated. Firstly, a physical test was carried out. The diameters of organic fertilizer of Hermetia illucen treated with pig manure particles were between 1.6 and 2.6 mm, an...