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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
Document Type
Contractor Report (CR)
Shapiro, Wilbur
(Mechanical Technology, Inc. Latham, NY, United States)
Chupp, Raymond
(Allison Engine Co. Indianapolis, IN, United States)
Holle, Glenn
(Allison Engine Co. Indianapolis, IN, United States)
Scott, Thomas
(Allison Engine Co. Indianapolis, IN, United States)
Date Acquired
September 7, 2013
Publication Date
October 1, 2004
Subject Category
Aircraft Propulsion And Power
Report/Patent Number
Funding Number(s)
WBS: WBS 22-00-00
Distribution Limits
Work of the US Gov. Public Use Permitted.
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