透平叶片 meaning in English
segment of blading
turbine blade
turbine vane
Examples
- It is important for the design of air cooling steam turbine and the performance and stability of turbine to study unsteady flow mechanism in design and off - design state
深入了解透平叶片在设计状态和高背压条件下的非定常流动机理，能更好设计空冷汽轮机以及提高叶轮机械的性能和稳定性。 - The flow of turbine in design and off - design state was simulated by the method of numerical simulation of 3 - d viscous flow , and the flow mechanism in design and off - design state was studed
主要利用三维粘性非定常数值模拟的方法对设计状态和高背压条件下透平叶片内部的流动进行模拟，并分析了设计状态和高背压条件下非定常流动机理。 - The paper analyze the limitations of serial gas turbine model , take single axis gas turbine as prototype , with the intensive analyzes and profound of the principles and characteristic of the object , using the modular modeling method proposed the dynamic model of gas turbine , which including the model of compressor , combustor , turbine . with respect to the purposes and key points of establishing model , the model is simplified . the intensive cooling of turbine blades is also modeled
在建模过程中，结合本文建模的目的和重点，对原型作了合理的简化，考虑了压气机抽气对透平叶片的冷却，对压气机和燃气透平按级进行分析和处理，采用模块化建模的方法分别建立了燃气轮机主要部件压气机、燃烧室、燃气透平的动态数学模型，所建模型比集总参数模型具有更好的精确性。 - A full mathematical model of optimal flow pattern design withengineering constraints was put forward , based on modern optimal control theory . an optimal flow pattern design was presented for optimizing meridional channel of axial flow turbine . according to integral optimization of turbine stages , a full physical model and mathematical expression were put forward for proposition of optimal flow pattern , including all performance parameters in turbine stages . this problem was further recast into a typical form control to maximize specific performance index such as work or efficiency of stage with given initial state , fixed terminal condition and constraints for part of state terminal variables . the program was also worked out according penalty function method and conjugate gradient method . the optimal distribution of c1ur1 ( r1 ) was obtained according to constraint conditions and maximized objective function
把近代最优控制论方法引入轴流透平叶片的设计，在优化的轴流透平子午通道内，建立包括透平级内所有性能参量的最优流型命题的完整的物理模型及其数学表达式，并归化为一个在给定初始状态、自变量终端固定、部分状态变量终端受有约束的条件下，使级的某一性能指标（如级的功率）达到最优的最优控制问题，应用“代价函数法”及“共轭梯度法”编制计算程序，计算得到符合给定约束条件、并使目标函数取极值的最优环量分布，结果是令人满意的。