Effect of Surface Roughness on Performance of Spiral Groove Gas Film Face Seal

Abstract:

The three dimensional model was established for studying performance of spiral groove gas face seal. According to machining features of different surface area, the seal face can be divided into three parts, rotor ring grooved area, rotor ring non-grooved area and static ring area. The effect of roughness on seal performance was analyzed based on calculation of three dimensional flow field. The analysis results show that the surface roughness of rotor ring grooved area has great influence on the seal performance, but the influence is little when roughness on non-grooved rotor ring surface and static ring surface. The influence must be considered when surface roughness of rotor ring grooved area bigger than 0.2μm. Roughness of rotor ring surface can increase the loading force while it also can cause the increase of leakage. It is important to select rational roughness when designing gas face seal.

• Periodical: Applied Mechanics and Materials (Volumes 184-185)
• Pages: 180-183
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.184-185.180
• Online since: June 2012
• Authors: Gang Ma, Wei Zhao, Xin Min Shen
• Keywords: Gas Film Face Seal, Spiral Groove, Surface Roughness (SR), Three Dimensional Flow Field

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