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Comparison of results of experimental research with numerical calculations of a model one-sided seal

机译：实验研究结果与模型单面密封件数值计算的比较

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Paper presents the results of experimental and numerical research of a model segment of a labyrinth seal for a different wear level. The analysis covers the extent of leakage and distribution of static pressure in the seal chambers and the planes upstream and downstream of the segment. The measurement data have been compared with the results of numerical calculations obtained using commercial software. Based on the flow conditions occurring in the area subjected to calculations, the size of the mesh defined by parameter y+ has been analyzed and the selection of the turbulence model has been described. The numerical calculations were based on the measurable thermodynamic parameters in the seal segments of steam turbines. The work contains a comparison of the mass flow and distribution of static pressure in the seal chambers obtained during the measurement and calculated numerically in a model segment of the seal of different level of wear.
机译：本文介绍了迷宫式密封不同磨损程度的模型段的实验和数值研究结果。该分析涵盖了密封腔室以及该段上游和下游平面中泄漏和静压分布的程度。将测量数据与使用商业软件获得的数值计算结果进行了比较。基于在进行计算的区域中发生的流动条件，分析了由参数y +定义的网格的大小，并描述了湍流模型的选择。数值计算基于汽轮机密封段中可测量的热力学参数。这项工作包含了在测量过程中获得并在不同磨损水平的密封模型段中通过数值计算得出的密封室内质量流量和静压分布的比较。

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