Steady Air Injection Flow Control Parameters in a Transonic Axial Compressor

Laser Anemometer Measurements in a Transonic Axial Flow Compressor Rotor

Unsteady Transonic Flows in an Axial Flow Compressor*

Introduction. This paper deals with some transonic flow problems for the supersonic axial flow compressor: these arise in connection with flutter analysis for fan blading. Very detailed solutions for unsteady plane transonic flows through a cascade of flat plates have been given by Goldstein Braun and Adamczyk (1977) and Nagashima and Whitehead (1977), see also Goldstein (1975), Kurosaka (1974)...

Numerical Investigations of Transonic Cavity Flow Control Using Steady and Pulsed Fluidic Injection

A numerical study is conducted to investigate steady and pulsed fluidic actuation in transonic flow over an open cavity. Numerical results are obtained for the unsteady threedimensional flow with three different steady mass injection rates and one pulsed injection upstream of the cavity. The simulations are carried out using the full 3-D Navier Stokes equations with the two-equation k-ε based D...

Performance Prediction Modeling of Axial-Flow Compressor by Flow Equations

Design models of multi- stage, axial flow compressor are developed for gas turbine engines. Axial flow compressor is one of the most important parts of gas turbine units. Therefore, its design and performance prediction are very important. One-dimensional modeling is a simple, fast and accurate method for performance prediction of any type of compressors with different geometries. In this appro...

Flow Re-Stabilizing Observation via Air Injection during the Rotating Stall through a Single-stage Axial Compressor by a 2-D Finite-volume Approach

The air-injection as an active flow stabilizing techniques, were numerically examined in current work, during the aerodynamic behavior and the characteristics of an axial compressor. At first, in design condition the characteristic curve was numerically captured for a specified test compressor. The computed results showed good agreements with those obtained from the experiments, to validate the...