| 一维等熵不定常流的总焓 |
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| 引用本文： | 吕绍椿.一维等熵不定常流的总焓[J].安徽工学院学报,1987(1). |
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| 作者姓名： | 吕绍椿 |
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| 作者单位： | 安徽工学院动力机械系 |
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| 摘 要： | 本文首先结合“活塞问题”中一维波的运动以及从总焓的微分式出发定性地分析了一维等熵不定常流的总焓变化规律。最后,导出无量纲参数总焓比h′。/h。的表达式,并将计算结果绘制成图表。从而,在理论上揭示出一维等熵定常流与不定常流各对应参数的变化存在显著差异的根本原因。
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| 关 键 词： | 一维等熵不定常流 总焓 一线波运动 |
The Total Enthalpy in One-Dimensional Unsteady Isentropic Flow |
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| Authors: | Lu Shaochun |
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| Affiliation: | Lu Shaochun Department of Power Machinery |
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| Abstract: | In this paper, We theoretically discuss the behaviour of the total entha-lpy varyiug with the Mach number in one-dimensional unsteady isentropicflow, when the Mach number increases, the perssure, density and temperatureboth in steady and unsteady isentropic flow all decrease. However, theirdecreasing rates are respectively different from each other, for the reasonthat the total enthalpy in the former is a constant and in the tatter it is avariable. In this paper some important conclusion are finally obtained. |
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| Keywords: | unsteady isentropic flow total enthalpy |
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