Supervisor:
Southwest Ordnance Industry Bureau
Organizer:
Chongqing Ordnance Industry Society
Chongqing University of Technology
Chongqing University of Technology
Research of anisotropic flow heat transfer and thermal deformation of finger seals
| DOI: | 10.11809/bqzbgcxb2024.08.033 |
| Keywords: | finger seals; anisotropy; leakage; temperature field; thermal deformation |
| Abstract: | In order to study the complex flow heat transfer and thermal deformation problems inside the finger seals, a three dimensional flow field model of anisotropic flow and heat transfer of finger seals and a solid model for thermal deformation analysis are established, and the pressure field and temperature field of finger seals under different working conditions are obtained based on the flow field model, and they are loaded into the solid model for thermal deformation analysis as boundary conditions. The results show that in terms of flow and heat transfer, the leakage increases with the increase of pressure difference, decreases slightly with the increase of speed, and decreases with the increase of interference. In terms of thermal deformation, the maximum radial deformation increases with the increase of speed and interference, and the influence of speed and pressure difference on the axial deformation is small, the maximum radial deformation is about 21.6% of the installed interference under the same interference, and the axial maximum deformation is about 4.68% of the installed interference, and the maximum radial deformation increases by 89.89% and the leakage decreases by 4.86% for every 0.1mm increase of interference under the same pressure difference. This study can provide a certain reference for the optimization of structural parameters and seal failure analysis of contact finger seals.ξ |
| Issue: | Vol. 45 No. 8 (2024) |
| Published: | 2024-09-02 |
| PDF HTML | |