粮油食品科技Issue(1)：95-101,7.
高大平房仓粮堆插管机械通风数值仿真研究
Numerical simulation study of mechanical ventilation of grain heap with tube insertion in tall horizontal warehouses
摘要
Abstract
The air speed distribution of grain ventilation in horizontal warehouse which is usually con-cerned is investigated by using CFD numerical simulation.Carefully considered air pressure distribution in the barn.Established independent numerical model for the ventilation cage of the cage ventilation method, obtained its pressure drop versus velocity data,and applied it to the full numerical model of the barn,im-proved the reality of the simulation.And simulated ventilation tubes in grain heaps based on the tube in-sertion technology from some barns.It is observed from the test result that air speed in the grain is effec-tively improved by reasonable arrangement of the ventilation tubes.Proposed the theory of the improve-ment of the ventilation effect by tube insertion and the direction of optimal designing of the ventilation tube through the observation of the flow field and pressure field nearby ventilation tubes.关键词
粮食通风/空气流速 CFD/通风笼/插管Key words
grain ventilation/air speed/CFD/ventilation cage/ventilation tube分类
轻工纺织引用本文复制引用
张成,樊洪明..高大平房仓粮堆插管机械通风数值仿真研究[J].粮油食品科技,2016,(1):95-101,7.
