| 热等离子体绕流圆柱体热流表达式的改进 |
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| 引用本文： | 陈熙.热等离子体绕流圆柱体热流表达式的改进[J].清华大学学报(自然科学版),1985(2). |
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| 作者姓名： | 陈熙 |
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| 作者单位： | 清华大学工程力学系 |
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| 摘 要： | 用计算研究的办法，本文对以前得出的热等离子体横向统流圆柱体传热条件下的热流表达式做了两点改进：①建议采用参考焓所对应的温度作为选取物性的参考温度．在等离子体温度较低时，也可用所对应的温度作为参考温度；②在相当宽阔的实验参数范围内，前半圆柱的热流集中系数可取为０．７５，这有助于扩展理论结果的使用范围。
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| 关 键 词： | 等离子体 热等离子体 热流 参考温度 |
Improved Expressions for the Specific Heat Flux to a Cylinder in a Thermal Plasma Crossflow |
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| Chen Xi.Improved Expressions for the Specific Heat Flux to a Cylinder in a Thermal Plasma Crossflow[J].Journal of Tsinghua University(Science and Technology),1985(2). |
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| Authors: | Chen Xi |
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| Institution: | Chen Xi Department of Engineering Mechanics |
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| Abstract: | The previous expressions for the heat flux to a cylinder immersed in a thermal plasma cross flow have been improved in this paper by means of computational analysis. The temperature corresponding to the reference enthalpy or the average enthalpy under low plasma tempera- ture is recommended as the reference temperature for the heat flux calculation without any correction concerning the property assumptions. A value of the concentration coefficient of the heat flux on the frontal semicylinder, 0.75, is shown to be applicable to a wider region of parameters. |
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| Keywords: | plasma thermal plasma heat flux reference temperature |
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