Osman Saim Dinc
General Electric
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Publication
Featured researches published by Osman Saim Dinc.
Journal of Engineering for Gas Turbines and Power-transactions of The Asme | 2008
Yahya Dogu; Mahmut Faruk Aksit; Mehmet Demiroglu; Osman Saim Dinc
The industrial applications of brush seals have been increasing due to their superior sealing performance. Advances in the understanding of seal behavior have been pushing the design limits to higher-pressure load, temperature, surface speed, and rotor excursion levels. The highest sealing performance can be achieved when the bristle pack maintains contact with the rotor surface. However, due to many design and operational constraints, most seals operate with some clearance. This operating clearance cannot be avoided due to rotor runouts, transient operating conditions, or excessive bristle wear. In some applications, a minimum initial clearance is required to ensure a certain amount of flow rate for component cooling or purge flow. Typically, brush seal failure occurs in the form of degraded sealing performance due to increasing seal clearance. The seal performance is mainly characterized by the flow field in close vicinity of the bristle pack, through the seal-rotor clearance, and within the bristle pack. This work investigates the flow field for a brush seal operating with some bristle-rotor clearance. A nonlinear form of the momentum transport equation for a porous medium of the bristle pack has been solved by employing the computational fluid dynamics analysis. The results are compared with prior experimental data. The flow field for the clearance seal is observed to have different characteristics compared to that for the contact seal. Outlined as well are the flow features influencing the bristle dynamics.
Archive | 1993
Bharat S. Bagepalli; Osman Saim Dinc; John Eugene Barnes; Robert Harold Cromer; Imdad Imam
Archive | 1997
David Robert Skinner; Bharat S. Bagepalli; Robert Harold Cromer; Osman Saim Dinc; Norman Arnold Turnquist; Christopher Edward Wolfe
Archive | 1995
Christopher Edward Wolfe; Osman Saim Dinc; Bharat S. Bagepalli; Victor Hugo Silva Correia; Mahmut Faruk Aksit
Archive | 1997
Bharat S. Bagepalli; R. Paul Chiu; Robert Harold Cromer; Gregory Allan Crum; Osman Saim Dinc; Anthony Holmes Furman; Paul Thomas Marks; Rudolf Matthias Markytan; David Robert Skinner; Norman Arnold Turnquist; Christopher Edward Wolfe
Archive | 1994
Bharat S. Bagepalli; Robert Harold Cromer; Osman Saim Dinc; James Maynard
Archive | 1999
Norman Arnold Turnquist; Osman Saim Dinc; Ziqiang Hu; James Louis Lawen; George Ernest Reluzco; Ming Zhou
Archive | 2001
Osman Saim Dinc; Norman Arnold Turnquist; Mehmet Demiroglu; Hamid Reza Sarshar; Ahmad Safi; Mahmut Faruk Aksit; Roger Neal Johnson; Anthony Holmes Furman; Imdad Imam; Gerald Burt Kliman; James Hopkins; Richard Robert Larsen; David Michael Prowse; Steven Wayne Russell
Archive | 1998
Osman Saim Dinc; Norman Arnold Turnquist; Robert Harold Cromer; George Ernest Reluzco; Christopher Edward Wolfe
Archive | 2001
Osman Saim Dinc; Mehmet Demiroglu; Hamid Reza Sarshar; Paul B Gladen; Keith W Hochhalter