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| The Numerical Simulation Research on Heat Transfer in Hot Air Box System and Paper Sheet |
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| DOI：10.11980/j.issn.0254-508X.2016.07.011 |
| Key Words:air cushion hot air box heat-transfer characteristic numerical simulation |
| Fund Project:南京工程学院青年资金项目(QKJA2011007)。 |
| Author Name | Affiliation | | 张长飞 | 南京工程学院环境工程系,江苏南京,211167 | | 丁克强 | 南京工程学院环境工程系,江苏南京,211167 | | 李乾军 | 南京工程学院环境工程系,江苏南京,211167 | | 张东平 | 南京工程学院环境工程系,江苏南京,211167 | | 吴功德 | 南京工程学院环境工程系,江苏南京,211167 |
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| Abstract:The distribution of hot air speed, temperature and static pressure in the hot air box,and the influence of inlet velocity, height ratio, air temperature, percentage of opening and the style of jets on the uneven index, static pressure and surface heat transfer coefficient of the air cushion were discussed. With dimensional analysis, a functional relationship of Nu was obtained. Comparing fitted values with numerical simulation values, the maximum relative error was 9.53%,root mean square error was 9.5%. The fitting formula could be used to study and calculate heat transfer coefficient in engineering cushion layer. |
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