+ Visit NASA.gov + Contact NASA   + Home Collection > NASA  Author > Harp, J. L., Jr.  NASA Center > NASA (non Center Specific)  Publication Year > 1971-1980 > 1977  Subject > A-C > Aerodynamics  Availability Options > Order From Other Sources  Item/Media Type > Conference Proceedings  Note: Start a new navigation search by selecting a link above     Previous Record | Next Record + Back to Results   + Printer Friendly Title: A Navier-Stokes solution of the three-dimensional viscous compressible flow in a centrifugal compressor impeller Author(s): Harp, J. L., Jr. Abstract: A two-dimensional time-dependent computer code was utilized to calculate the three-dimensional steady flow within the impeller blading. The numerical method is an explicit time marching scheme in two spatial dimensions. Initially, an inviscid solution is generated on the hub blade-to-blade surface by the method of Katsanis and McNally (1973). Starting with the known inviscid solution, the viscous effects are calculated through iteration. The approach makes it possible to take into account principal impeller fluid-mechanical effects. It is pointed out that the second iterate provides a complete solution to the three-dimensional, compressible, Navier-Stokes equations for flow in a centrifugal impeller. The problems investigated are related to the study of a radial impeller and a backswept impeller. NASA Center: NASA (non Center Specific) Publication Date: JAN 1, 1977 Document Source: Other Sources No Digital Version Available: Go to Tips On Ordering Document ID: 19780028394 Accession ID: 78A12303 Publication Information: Number of Pages = 19 Meeting Information: Transonic flow problems in turbomachinery, February 11-12, 1976, Monterey, CA Keywords: CENTRIFUGAL COMPRESSORS; COMPRESSIBLE FLOW; COMPUTER TECHNIQUES; NAVIER-STOKES EQUATION; ROTOR BLADES (TURBOMACHINERY); THREE DIMENSIONAL FLOW; VISCOUS FLOW; BOUNDARY LAYER SEPARATION; COMPUTER PROGRAMS; FINITE DIFFERENCE THEORY; FLOW VELOCITY; ITERATION; STEADY FLOW; TRANSONIC FLOW; VORTICES; Notes: In: Transonic flow problems in turbomachinery; Proceedings of the Workshop, Monterey, Calif., February 11, 12, 1976. (A78-12286 02-02) Washington, D.C., Hemisphere Publishing Corp., 1977, p. 309-323; Discussion, p. 323-327. NASA-supported research. Accessibility: Unclassified; Copyright; Unlimited; Publicly available; Updated/Added to NTRS: 2004-11-03 + Back to Top + Sponsored by the NASA Scientific and Technical    Information Program + 2004 Vision for Space Exploration + Freedom of Information Act + NASA Web Privacy Policy and Important Notices + NASA Disclaimers, Copyright Notice,    and Terms and Conditions of Use NASA Official: Calvin Mackey Page Curator: NASA Center for AeroSpace Information (help@sti.nasa.gov) Last Updated: July 5, 2007