TY - GEN
T1 - Numerical analysis of general groove geometry for dry gas seals
AU - Hu, Ji Bin
AU - Tao, Wen Jin
AU - Zhao, Yi Min
AU - Wei, Chao
PY - 2014
Y1 - 2014
N2 - By Changing the key points on the spiral curve, general groove geometry was determined. Considering the simplicity of modeling and analysis, cubic spline function was used to express the general groove profile. By using the boundary fitted coordinate system transformation, irregular computational domain was transferred to regular region; Based on flow conservation principle, finite volume method was applied to discrete compressible Reynolds equation; By the application of Newton-Raphson iteration method for solving algebraic equation, numerical model of general groove dry gas seals was established. When compared sample results with shallow groove theory, the capacity and stiffness of numerical results match well with theoretical ones, verifying the accuracy of novel numerical model. Through analysis of three typical groove seals, spiral groove seal has strongest carrying capacity. Pressure distribution of three groove seals subjects to the law of hydrodynamic pressure effect. And the numerical model established in this paper will offer a general calculate platform for optimization of groove geometry in the future.
AB - By Changing the key points on the spiral curve, general groove geometry was determined. Considering the simplicity of modeling and analysis, cubic spline function was used to express the general groove profile. By using the boundary fitted coordinate system transformation, irregular computational domain was transferred to regular region; Based on flow conservation principle, finite volume method was applied to discrete compressible Reynolds equation; By the application of Newton-Raphson iteration method for solving algebraic equation, numerical model of general groove dry gas seals was established. When compared sample results with shallow groove theory, the capacity and stiffness of numerical results match well with theoretical ones, verifying the accuracy of novel numerical model. Through analysis of three typical groove seals, spiral groove seal has strongest carrying capacity. Pressure distribution of three groove seals subjects to the law of hydrodynamic pressure effect. And the numerical model established in this paper will offer a general calculate platform for optimization of groove geometry in the future.
KW - Cubic spline
KW - Dry gas seals
KW - Finite volume method
KW - Flow conservation principle
KW - General groove geometry
UR - http://www.scopus.com/inward/record.url?scp=84887565519&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/AMM.457-458.544
DO - 10.4028/www.scientific.net/AMM.457-458.544
M3 - Conference contribution
AN - SCOPUS:84887565519
SN - 9783037859247
T3 - Applied Mechanics and Materials
SP - 544
EP - 551
BT - Frontiers of Mechanical Engineering and Materials Engineering II
T2 - 2013 2nd International Conference on Frontiers of Mechanical Engineering and Materials Engineering, MEME 2013
Y2 - 12 October 2013 through 13 October 2013
ER -