CAJ | 학술논문

设计了基于固体流态化原理的气吹供种装置，并应用CFD软件Fluent 对种子流化室进行流场仿真，分析了供种装置流化室内距离布风板不同高度H的参考横截面和出口处流场的分布。结果表明：气流流场的不均匀性随距离布风板高度H的增加而减小；同时，由于壁面摩擦阻力的存在，近壁附近区域气体流速最小。仿真分析可为气力供种装置的优化提供理论支持。
설계료기우고체류태화원리적기취공충장치，병응용CFD연건Fluent 대충자류화실진행류장방진，분석료공충장치류화실내거리포풍판불동고도H적삼고횡절면화출구처류장적분포。결과표명：기류류장적불균균성수거리포풍판고도H적증가이감소；동시，유우벽면마찰조력적존재，근벽부근구역기체류속최소。방진분석가위기력공충장치적우화제공이론지지。
Pneumatic seed supply device was designed which is based on the fluidization principle .The flow field in the fluid-bed of the seed was simulated by using the CFD software:Fluent , analyzing the field distribution of the reference planes at different distances between the gas distributor and the out plane .The simulated results indicated that the uni-formity of gas phase flow field in the reference planes was improved with the increase of the distance between the refer -ence plane and the gas distributor;as the same time , the velocity in the zone of near the wall is minimum , because of that the wall have friction .The study provides theoretical support to optimization design for the pneumatic seed supply de -vice .