Numerical Investigaton of Sand Erosion Phenomena in Rotor/Stator Interaction of Jet Engine Compressor

喷气发动机压气机转子/定子相互作用中沙蚀现象的数值研究

• 批准号: 18560180
• 负责人: YAMAMOTO Makoto
• 金额: $ 2.43万
• 依托单位: Tokyo University of Science
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2006
• 资助国家: 日本
• 起止时间: 2006 至 2007
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-18560180/
• 关键词: Fluid Dynamics; Fluid Machinery; Computational Fluid Dynamics; Sand Erosion; Gas-Solid 2-Phase Turbulent Flow; Comnressible Flow

Sand erosion is a phenomenon where solid particles impinging to a wall cause serious mechanical damages to the wall surface. It is well-known that the performance and lifetime of various machines, such as airplane, ship, gas turbine, pump and so on, are severely degraded due to sand erosion. This phenomenon is E typical gas-particle two-phase turbulent flow and a multi-physics problem where the flow field, particle trajectory and wall deformation interact with among others. However, the change of the flow field and the relating particle trajectory during the erosion process have not been taken into account by conventional simulations. This treatment is physically unrealistic. Hence, we have developed the numerical procedure for sand erosion phenomenon, including the temporal change of the flow field and the wall shape. In the present research, I developed a code to simulate sand erosion phenomena in a rotor/stator interaction of an axial compressor, in order to clarify the physics and the effects on the aerodynamic performance.In 2006, I extended our existing code for rotational frame of reference to compute a rotor/stator interaction. Then the code was applied to a 90-degree bend with a square cross-section in which sand erosion took place. Comparing the numerical results with the experimental data, it was confirmed that the developed code can reproduce the temporal changes of the turbulent flow and eroded surface satisfactorily.In 2007, the code was applied to a rotor/stator interaction problem of an axial compressor, to clarify the physics. Investigating the numerical results, it was confirmed that the first impact leads to the most severe erosion around the rotor leading edge, and relatively severe erosion occurs around the tip of the rotor trailing edge, because centrifugal force makes a number of particles go towards the region.

砂侵蚀是一种现象，其中撞向墙壁的固体颗粒会对壁表面造成严重的机械损害。众所周知，由于沙子侵蚀，各种机器（例如飞机，船，燃气轮机，泵等）的性能和寿命会严重降解。这种现象是典型的气体两相湍流和多物理问题，其中流场，颗粒轨迹和壁变形与其他相互作用相互作用。但是，尚未通过常规模拟考虑流场和相关粒子轨迹的变化。这种治疗在身体上是不现实的。因此，我们开发了用于沙子侵蚀现象的数值程序，包括流场的时间变化和壁形。在本研究中，我制定了一项代码，以模拟轴向压缩机的转子/定子相互作用中的沙子侵蚀现象，以阐明物理学和对空气动力学性能的影响。在2006年，我扩展了我们现有的代码以旋转旋转框架，以进行转子/定子相互作用。然后将代码应用于90度弯曲，并带有正方形的横截面，在该弯曲中发生了沙子侵蚀。将数值结果与实验数据进行比较，已经证实，开发的代码可以重现湍流的时间变化并令人满意地侵蚀表面。在2007年，将代码应用于轴向压缩机的转子/定子相互作用问题，以阐明物理学。在研究数值结果时，已经证实，第一个影响会导致转子前缘周围最严重的侵蚀，并且相对严重的侵蚀发生在转子尾部尾端的尖端周围，因为离心力使许多颗粒朝该区域进行。

项目成果

Numerical Visualization of Combustion of Hydrogen Fuel Injected from Multiple Holes on Turbine Blade

涡轮叶片多孔喷注氢燃料燃烧的数值可视化

• 发表时间: 2006
• 期刊: Proc. 12th International Symposium on Flow Visualization 12-59
• 作者: J.;Ikeda;K.;Inaba;M.;Yamamoto
• 通讯作者: Yamamoto

タービン静翼におけるサンドエロージョン現象の数値予測

水轮机静叶片砂蚀现象的数值预测

• 发表时间: 2007
• 作者: 鈴木正也;山本誠
• 通讯作者: 山本誠

Aerodynamic Effect of Turbine Blade Geometry in Pulse Detonation Combustor

脉冲爆震燃烧室中涡轮叶片几何形状的气动效应

• 发表时间: 2007
• 期刊: Proc. 45th AIAA Aerospace Science Meeting and Exhibit 2007-1176
• 作者: A.;Nango;K.;Inaba;M.;Yamamoto
• 通讯作者: Yamamoto

3D Computation of Hydrogen-Fueled Combustion around Turbine Blade(Effect of Arrangement of Injector Holes)

涡轮叶片周围氢燃料燃烧的3D计算（喷孔布置的影响）

• 发表时间: 2006
• 期刊: Journal of Thermal Science 15
• 作者: M. Yamamoto;J. Ikeda;K. Inaba
• 通讯作者: K. Inaba

Numerical Simulations of Mixed Fuel Detonations

混合燃料爆炸的数值模拟

• 发表时间: 2006
• 期刊: Proc. 42nd AIAA/ASME/SAE/ASEE Joint Propulsion Conference 2006-4309
• 作者: K.;Inaba;J.;Kato;M.;Yamamoto
• 通讯作者: Yamamoto