Accession Number:

ADA188284

Title:

Numerical Simulation of Unsteady Flow in a Compressor Rotor Cascade.

Descriptive Note:

Final rept. Jan 84-Feb 86,

Corporate Author:

DAYTON UNIV OH RESEARCH INST

Personal Author(s):

• Scott, James N.

Report Date:

1986-11-01

Pagination or Media Count:

60.0

Abstract:

Unsteady flow in a two-dimensional compressor rotor is computed by solving the time-dependent compressible Navier-Stokes equations for flow between two adjacent rotor blades. The computations are carried out on a CDC Cyber 845 computer and a CRAY XMP computer using MacCormacks explicit finite difference scheme. The primary objective of this program is to numerically simulate the rotor flow accounting for the effects of wakes from the upstream stator and inlet guide vane. Particular attention is focused on the influence of unsteady effects on the mass flow rate, shock structure, and shock wave-boundary layer interaction. Keywords Compressor rotor, Navier Stokes equations, Numerical simulation, Unsteady flow.

Descriptors:

• *COMPRESSOR ROTORS
• *UNSTEADY FLOW
• BOUNDARY LAYER
• COMPRESSIBLE FLOW
• COMPUTATIONS
• FINITE DIFFERENCE THEORY
• FLOW RATE
• INLET GUIDE VANES
• INTERACTIONS
• MASS FLOW
• MATHEMATICAL MODELS
• NAVIER STOKES EQUATIONS
• NUMERICAL ANALYSIS
• ROTOR BLADES(TURBOMACHINERY)
• SHOCK
• SHOCK WAVES
• SIMULATION
• STATORS
• TIME DEPENDENCE
• TWO DIMENSIONAL
• WAKE
• DIGITAL SIMULATION
• FLOW FIELDS
• CASCADES(FLUID DYNAMICS)
• COMPRESSIVE PROPERTIES

Subject Categories:

• Fluid Mechanics
• Jet and Gas Turbine Engines

Distribution Statement:

APPROVED FOR PUBLIC RELEASE