NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Collections About News Help Login
Back to Results
Numerical, Analytical, Experimental Study of Fluid Dynamic Forces in SealsThe objectives of the program were to develop computational fluid dynamics (CFD) codes and simpler industrial codes for analyzing and designing advanced seals for air-breathing and space propulsion engines. The CFD code SCISEAL is capable of producing full three-dimensional flow field information for a variety of cylindrical configurations. An implicit multidomain capability allow the division of complex flow domains to allow optimum use of computational cells. SCISEAL also has the unique capability to produce cross-coupled stiffness and damping coefficients for rotordynamic computations. The industrial codes consist of a series of separate stand-alone modules designed for expeditious parametric analyses and optimization of a wide variety of cylindrical and face seals. Coupled through a Knowledge-Based System (KBS) that provides a user-friendly Graphical User Interface (GUI), the industrial codes are PC based using an OS/2 operating system. These codes were designed to treat film seals where a clearance exists between the rotating and stationary components. Leakage is inhibited by surface roughness, small but stiff clearance films, and viscous pumping devices. The codes have demonstrated to be a valuable resource for seal development of future air-breathing and space propulsion engines.
Document ID
20040182586
Acquisition Source
Glenn Research Center
Document Type
Contractor Report (CR)
Authors
Liang, Anita D. (NASA Glenn Research Center Cleveland, OH, United States)
Artiles, Antonio (Mechanical Technology, Inc. Latham, NY, United States)
Date Acquired
September 7, 2013
Publication Date
October 1, 2004
Subject Category
Fluid Mechanics And Thermodynamics
Report/Patent Number
E?14708?4/VOL4
NASA/CR-2004-213199/VOL4
Funding Number(s)
WBS: WBS 22-5000-0013
CONTRACT_GRANT: NAS3-25644
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

Related Records

There are no records associated with this record.
No Preview Available