Purpose

The purpose of this research is to investigate the feasibility of using the components series connection (CSC) method to predict the performance of a newly developed micro turbine engine (MTE) under rated operating condition.

Design/methodology/approach

The main research object is the MTE with known factory performance parameters, and the finite element method is used to discretize its main components into a full-cycle grid and then simulate it in the computational fluid dynamics method under rated operating condition using the CSC method. Finally, compare the results obtained by numerical simulations with the factory design parameters of the MTE.

Findings

The performance and flow field of MTE and each component were simulated and obtained. Compared with the factory design parameters, the errors are acceptable, with the outlet average total temperature and thrust exhibiting errors of 1.4% and 7.6%, respectively.

Practical implications

This paper introduces a faster and more convenient method for simulating the performance of MTE components and the entire engine while also making the simulations more realistic. The method was used to analyze the performance of the components and the whole engine of a newly developed MTE.

Originality/value

This research validates the feasibility of evaluating the overall performance of the MTE using the CSC method and provides a new method to solve performance calculations for MTE under any known working conditions.

中文翻译：

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新开发的微型涡轮发动机性能的全周期网格数值模拟

 目的

本研究的目的是探讨使用组件串联 （CSC） 方法预测新开发的微型涡轮发动机 （MTE） 在额定运行条件下的性能的可行性。

设计/方法/方法

主要研究对象是已知出厂性能参数的 MTE，采用有限元方法将其主要成分离散为全周期网格，然后采用 CSC 方法在额定运行条件下用计算流体力学方法进行仿真。最后，将数值仿真获得的结果与 MTE 的工厂设计参数进行比较。

 发现

对 MTE 和各组件的性能和流场进行了仿真和得到。与工厂设计参数相比，误差是可以接受的，出口平均总温度和推力的误差分别为 1.4% 和 7.6%。

 实际意义

本文介绍了一种更快、更方便的方法，用于仿真 MTE 组件和整个引擎的性能，同时使仿真更加逼真。该方法用于分析新开发的 MTE 的组件和整个发动机的性能。

 原创性/价值

本研究验证了使用 CSC 方法评估 MTE 整体性能的可行性，并提供了一种解决任何已知工况下 MTE 性能计算的新方法。