| 摘要: |
| 用PHOENICS软件对某型板带式速冻机载货板带运动时的内部通道流场进行了数值计算.分析了板带运动、空气进口速度、流动通道高度、空气入射角对内部流场的影响.研究表明:正常工况下板带运动对流动通道空气速度分布没有影响;空气进口速度和通道高度的选取应该综合考虑空气流速大小,流速均匀性,流动阻力损失三方面因素;最佳空气入射角应该为0度. |
| 关键词: 热工学 板带式速冻机 流场 数值模拟 |
| DOI： |
| Revised:September 01, 2003 |
| 基金项目: |
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| Numerical Simulation of Air Flow Field in Freezer |
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| Abstract: |
| The inner channel flow fields in the belt freezer were calculated with the transmission belt moving by use of the PHOENICS code.The effects of the belt moving,the inlet air velcoity,different heights of channel and incidence angles on inner flow fields were analyzed.It is indicated that the moving of the transmission belt had no influence on the air velocity distribution along the transmission belt in normal working condition of the belt freezer.The selections of the inlet air velocity and heights of the channel should be considered synthetically of magnitudes, uniformities of air velocity and losses of air flow,and the best angle of incidence was zero. |
| Key words: thermodynamics and heat transfer,belt freezer,flow field,numerical simulation |
