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首页> 外文会议>ASME Turbo Expo vol.6 pt.A; 20050606-09; Reno-Tahoe,NV(US) >The Design, Development and Evaluation of 3D Aerofoils for High Speed Axial Compressors, Part 2: Simulation and Comparison with Experiment
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The Design, Development and Evaluation of 3D Aerofoils for High Speed Axial Compressors, Part 2: Simulation and Comparison with Experiment

机译：高速轴流式压缩机3D翼型的设计，开发和评估，第2部分：仿真与实验比较

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摘要

The focus of this paper is to report on measurements from and simulation of Cranfield University's 3-stage high-speed axial compressor test rig. This newly built rig is supported by European Commission funding and has tested a set of conventionally stacked 2D rotor and stator blades (Reference 1). The results were used to evaluate and to assess the performance of several commercially available CFD codes leading to the collaborative design of an advanced three-dimensional blade set. The philosophy behind the advanced design is described. The datum test results show that the state of the art, highly loaded, datum compressor is well matched with limited potential for loss reduction. A comparison is made between the measured results and a series of numerical analyses using the various CFD codes. Although the codes showed reasonable qualitative agreement with each other and the measured data, there were significant differences in the predicted performance of the datum build. Further the codes were unable to grade candidate redesigns consistently on a quantitative basis and therefore increased the difficulty of selecting suitable '3d' features. Generic studies involving sweep, lean and recambering are used to evolve a design philosophy for the advanced three-dimensional design. Over cambering of the end-wall sections, coupled with a suitable stack of the blades, enables the blade count to be reduced. In the presence of a clearance combinations of sweep and lean are used to modify the loading in the clearance gap, thereby influencing the associated losses. The application of three-dimensional features redistributes the flow. The opportunity is therefore taken to rematch the sections based on the predicted results of the CFD codes. The above philosophy is used in the redesign of the datum compressor. Overall characteristics and exit traverse results from the test of the advanced build are compared to those from the datum build.
机译：本文的重点是报告Cranfield University的3级高速轴向压缩机试验台的测量结果和模拟结果。这套新建的钻机得到了欧盟委员会资金的支持，并且已经测试了一组常规堆叠的2D转子和定子叶片（参考文献1）。结果用于评估和评估几种商用CFD代码的性能，从而导致高级三维刀片组的协同设计。描述了高级设计的原理。基准测试结果表明，最先进的高负荷基准压缩机与降低损耗的潜力非常匹配。使用各种CFD代码对测量结果和一系列数值分析进行比较。尽管这些代码彼此之间和所测得的数据之间显示出合理的定性一致性，但是在基准构造的预测性能方面存在显着差异。此外，这些代码无法在数量上始终如一地对候选人的重新设计进行评分，因此增加了选择合适的“ 3d”特征的难度。涉及清扫，精益和翻新的一般研究被用来发展高级三维设计的设计理念。端壁部分的过度弯曲，再加上合适的叶片堆，可以减少叶片的数量。在存在间隙的情况下，使用扫掠和倾斜的组合来修改间隙中的载荷，从而影响相关的损失。三维特征的应用重新分配了流程。因此，有机会根据CFD代码的预测结果重新匹配各个部分。以上原理用于基准压缩机的重新设计。将高级构建测试的总体特征和出口遍历结果与基准构建的结果进行了比较。

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