Numerical Study of Transonic Axial Flow Rotating Cascade Aerodynamics – Part 1: 2D Case
Journal Title: INCAS BULLETIN - Year 2014, Vol 6, Issue 2
Abstract
The purpose of this paper is to present a 2D study regarding the numerical simulation of flow within a transonic highly-loaded rotating cascade from an axial compressor. In order to describe an intricate flow pattern of a complex geometry and given specific conditions of cascade’s loading and operation, an appropriate accurate flow model is a must. For such purpose, the Navier-Stokes equations system was used as flow model; from the computational point of view, the mathematical support is completed by a turbulence model. A numerical comparison has been performed for different turbulence models (e.g. KE, KO, Reynolds Stress and Spallart-Allmaras models). The convergence history was monitored in order to focus on the numerical accuracy. The force vector has been reported in order to express the aerodynamics of flow within the rotating cascade at the running regime, in terms of Lift and Drag. The numerical results, expressed by plots of the most relevant flow parameters, have been compared. It comes out that the selecting of complex flow models and appropriate turbulence models, in conjunction with CFD techniques, allows to obtain the best computational accuracy of the numerical results. This paper aims to carry on a 2D study and a prospective 3D will be intended for the same architecture.
Authors and Affiliations
ANDREI Irina Carmen
Keywords
Related Articles
- EP ID EP157752
- DOI 10.13111/2066-8201.2014.6.2.1
- Views 82
- Downloads 0
Analysis of New Aerodynamic Design of the Nose Cone Section Using CFD and SPH
A new nose cones concept that promises a gain in performance over existing conventional nose cones is discussed in this paper. It is shown that significant performance gains result from the adaptation of the exhaust flow...
Local correlations for flap gap oscillatory blowing active flow control technology
Active technology for oscillatory blowing in the flap gap has been tested at INCAS subsonic wind tunnel in order to evaluate this technology for usage in high lift systems with active flow control. The main goal for this...
Walter M337 AK engine monitoring by system EDM-800 in operation of Air Training and Education Centre
This paper describes the process of the M337 engine monitoring by the Engine Data Management 800 which is mounted on six aircraft of Air Training and Education Centre. This is the most advanced and accurate piston engine...
Study of Vortex Breakdown and Pitch up on a Compound Delta Wing
This paper discusses the calculation of mean pressure on a compound delta wing configuration and its variance to understand vortex breakdown and pitch up on the setup. The configuration of the compound delta wing being u...
On the construction of numerical iterative schemes of any order of convergence for solving nonlinear systems of equations
This paper presents a methodology for constructing iterative schemes of any order of convergence for solving nonlinear systems of equations. It also provides formulas for the order of convergence of any iterative schemes...