Development of turbomachinery technology, including aircraft propulsion, has been an outstanding achievement of the last 50 years and, as illustrated by Ruffles in his paper 'The future of aircraft propulsion' (2000), further advances are expected in the future. Here, one particular aspect of turbomachinery technology, the internal air system is considered. An article by Dixon et al., published by the Institution of Mechanical Engineers in 2004, shows how computational modelling has become central to the design process and the importance of the internal air system in engine design. Bayley and Conway's 1964 paper, motivated by shortcomings in industrial design methods and understanding, was one of the first investigations of flow and heat transfer in rotating disc cavities typical of internal air systems. During the study, a theoretical or numerical treatment was considered intractable and so experiments were undertaken. These paved the way for an extensive research in this area. Today, the use of computational fluid dynamics (CFD) in industry for internal air flow prediction is commonplace. In this review, it is shown that the unshrouded disc cavity flow considered by Bayley and Conway is still challenging for modern CFD methods, and so the experimental data remain of interest to researchers in the field. [PUBLICATION ABSTRACT]
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机译：在过去的50年中，涡轮机械技术（包括飞机推进器）的发展一直是一项杰出的成就，正如Ruffles在他的论文《飞机推进器的未来》（2000年）中所说明的那样，预计未来还会有进一步的发展。在这里，考虑到涡轮机械技术的一个特定方面，即内部空气系统。机械工程师学会（Institute of Mechanical Engineers）在2004年发表的Dixon等人的文章显示了计算建模如何成为设计过程的中心，以及内部空气系统在发动机设计中的重要性。由于工业设计方法和理解上的缺陷，Bayley和Conway于1964年发表的论文是对内部空气系统典型的旋转圆盘腔内的流动和传热的第一批研究之一。在研究过程中，理论上或数字上的治疗都被认为是棘手的，因此进行了实验。这些为该领域的广泛研究铺平了道路。如今，在工业中使用计算流体动力学（CFD）进行内部气流预测已变得司空见惯。在这篇综述中，表明了Bayley和Conway考虑的无遮盖的盘腔流动对于现代CFD方法仍然具有挑战性，因此实验数据仍然是该领域研究人员感兴趣的。 [出版物摘要]
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