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等熵加载是目前研究材料状态方程的一种重要手段。Nowdays, isentropic loading is one of the important tools to be used in research for materials EOS.

沿等熵面高脊区的下滑急流与水汽图像暗区相当一致。The jet sliding along the ridge on isentropic surface is consistent with the dark zone in WV image.

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第四章主要研究二维等嫡可压缩流轴对称活塞问题激波解的整体存在性。In Chapter IV, we focused on the global existence of 2-d piston problem in isentropic compressible flow.

本文给出了两组一元变截面不定常可压缩完全气体等熵流的解析解。Two sets of analytical solutions of 1-D unsteady isentropic perfect gas flow with area change are given.

在分析喷管内气体的流动时，假设工作气体是完全的理想气体，气体的流动是等熵位流。An assumption is made that the exhaust gas is perfectly ideal, and the gas flow within the nozzle is isentropic.

随着叶尖间隙的增加，峰值等熵效率一直降低。And the isentropic efficiency and the total pressure ratio decrease with increasing the scales of the tip clearance.

应用此程序特别分析了一种非对称的和一种算熵塞式的矩型喷管射流场。Then a non-symmetric and a isentropic plug-type rectangular nozzles flow and their jet plumes were analysed numerically.

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进一步促进了磁驱动等熵加载、发射飞片实验技术、物态方程研究的开展。This work will be helpful to further development of isentropic compression technique and the study of equation of state.

用拉格朗日方法计算等熵面上空气质点和物质线的轨迹。In this paper, the trajectory of particles and material line are calculated with the lagrangian method on an isentropic surface.

用相应的梅雨期环流平均图及等熵面平均图，展示了各梅雨型之间的主要差异。The main difference among the types is displayed by use of the corresponding mean circulation and isentropic charts for the season.

螺旋度表征流体旋转与沿旋转方向运动的强度，在等熵流体中具有守恒性。Helicity denotes the conjunct intensity of rotation and the movement along the rotation, and it is conservative in isentropic fluid.

合适的前倾角有利于扩大压气机工作范围，能够改善流道内的流动，提高等熵效率。An appropriate front lean angle increases the range of a centrifugal compressor, improves the flow and enhances the isentropic efficiency.

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本工作为进一步开展等熵加载和驱动技术研究奠定了基本的实验技术和理论建模基础。To the next research of isentropic load and driven flyer plates, our work give the foundation of basic experiment technique and theory model.

在利用等熵线计算冲击温度时，从冲击绝热线出发推导了一个半解析的等熵方程。In the calculation of shock temperature by using isentropic curve, an isentropic equation which is consistent with the Hugoniot curve is developed.

本文重点探讨了膨胀机出口带液量对其等熵效率的影响。The influence of liquid quantity carried out from the exit of expansion machine upon its isentropic efficiency is emphatically discussed in this paper.

在等熵流和准定常流假设条件下，采用集总参量法，建立了弹后高压火药气体通过小孔在弹体内气室与弹后空间之间流动的气体参数理论计算模型。On the hypothesis of isentropic flow and quasi-steady flow, a model of gas parameters in the storage chamber is established by a method of the lumped parameters.

采用RKS状态方程计算实际气体等熵压缩过程的温度绝热指数和容积绝热指数。The equation of state, RKS, is chosen to evaluate the isentropic temperature change exponent kT and isentropic volume change exponent kv of real gases in this paper.

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在压比已知和初始焓的情况下，可以求等熵过程终点的焓和温度。It should be noted that, the entropy and temperature at the end point of a isentropic process may be calculated when the pressure ratio and initial enthalpy are known.

与等压面分析相比，等熵面上的分析更能直观的判断降水落区，预报效果优于等压面分析预报结果。Compared with the isobaric surface analysis, Isentropic analysis is more intuitive to judge precipitation zone, prediction is better than the results of isobaric analysis.

等熵轻质活塞风洞是一种工作时间很短的风洞，作为气源适合于瞬时热传导测量技术的研究工作。Isentropic light piston wind tunnel is a kind of short working duration tunnel. It is adequate to be used for the research work of instantaneous heat transfer measurement.