| 液氮发动机的防霜换热器温度场模拟 |
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| 引用本文： | 舒水明,凌贺飞,桑兰芬. 液氮发动机的防霜换热器温度场模拟[J]. 华中科技大学学报(自然科学版), 2003, 31(7): 61-63 |
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| 作者姓名： | 舒水明 凌贺飞 桑兰芬 |
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| 作者单位： | 1. 华中科技大学能源与动力工程学院
2. 长春理工大学理学院 |
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| 基金项目： | 湖北省自然科学基金资助项目 (2 0 0 2AB0 0 4) |
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| 摘 要： | 介绍了液氮发动机系统上的防霜换热器的基本结构，给出了无量纲换热能量方程组及边界条件和初始条件，描述了微分方程离散化方法以及网格划分方法，计算机模拟结果显示了防霜换热器中的二维或三维温度分布，计算机模拟的氮气的出口温度为293．05K，与设计要求温度293．15K基本一致。
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| 关 键 词： | 换热器 无霜 网络 数值方法 温度分布 |
| 文章编号： | 1671-4512(2003)07-0061-03 |
| 修稿时间： | 2002-11-25 |
Simulation of temperature distributions on a frost-free heat exchanger in LN2 Engine |
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| Shu Shuiming Ling Hefei Sang Lanfen. Simulation of temperature distributions on a frost-free heat exchanger in LN2 Engine[J]. JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE, 2003, 31(7): 61-63 |
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| Authors: | Shu Shuiming Ling Hefei Sang Lanfen |
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| Affiliation: | Shu Shuiming Ling Hefei Sang Lanfen |
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| Abstract: | A basic structure of the frost-free heat exchanger i n LN 2 Engine was introduced. The mathematic model and boundary conditions for a finned cross-flow heat exchanger were described. The heat transfer network and numerical method of mathematical equations were analyzed. The simulation results show transient and steady temperature distribution of two dimensions or three d imensions.The simulated input temperature 293.05?K of N 2 is almost the same a s design temperature 293.15?K. |
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| Keywords: | heat exchanger frost-free network numer ical method temperature distribution Shu Shuiming Assoc. Prof. College of Energy and Power Eng. Huazhong Univ. of Sci. & Tech. Wuhan 430074 China. |
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