AXIAL™
Design-Point and Off-Design Meanline Performance Modeling for Multistage Axial Compressors, Gas Turbines, Steam Turbines, Hydraulic Turbines, and Pumps
Modeling/Analysis Features
Meanline analysis of multistage axial compressors, turbines, and pumps is accomplished in AXIAL, which supports design-point and off-design analysis for subsonic and supersonic designs. AXIAL estimates hub and tip flow parameters, and evaluates and detects stall in compressors and choking conditions in compressors and turbines. An arbitrary sequence of stage elements (rotor, stator, duct, IGV, EGV, etc.) can be set up. Analysis is possible for a given mass flow, pressure ratio, or power. AXIAL also performs the analysis of designs with multiple choked and stalled components with ease.
State-of-the-Art Loss Modeling
Built-in, industry-standard loss models in AXIAL include Ainley-Mathieson, Dunham-Came, Kacker-Okapuu, Moustapha-Kacker (turbines); and Koch & Smith and Wright & Miller (compressors). AXIAL's extremely flexible, user-modifiable loss modeling system allows independent selection of loss models by blade row and loss split by loss component (i.e., profile, secondary flow, partial admission, wetness losses, etc.).
Real Fluid Thermodynamics
Real fluid thermodynamics is integral to AXIAL, which includes built-in support for perfect and semiperfect fluid properties. Real fluid properties are provided through the optional DB Robinson Real Fluid property routines or an optional steam property module. AXIAL also supports condensing gases and user-modifiable fluid properties.
User-Friendly Features
A flexible, easy-to-use graphical user interface is included in AXIAL along with built-in performance mapping. Parameter entry is accomplished by double-clicking on the active, scaled meridional view or by using AXIAL's "smart spreadsheet" input mode. Comprehensive context-sensitive online help is included, as well as complete program documentation online.
Graphical and Tabular View of Results
AXIAL includes integrated performance map plotting. Blade angles and velocity triangles may be viewed at rotor inlet and exit. In addition, results may be viewed in a flexible spreadsheet-like tabular view. Tables are customizable through separate "filters." Users can create any number of filters, selecting what to display as well as customizing the labels.
OLE Automation Support
Control of AXIAL can be accomplished from an external program through industry-standard Object Linking and Embedding (OLE) automation. Full control of data entry, program execution, and result retrieval is supported through OLE automation. External programs can be written in Visual Basic, C++, FORTRAN, or any other language which supports the Microsoft® OLE standard.
Bi-directional Interface with AxCent®
The user can start AxCent automatically from within AXIAL, with initial geometry and flow parameters transferred automatically to AxCent for blade shaping/stacking, throughflow analysis, blade-to-blade analysis, and further transfer to CFD and FEA programs. The user can also update the AXIAL solution from AxCent, transferring more complete geometry from AxCent back to the meanline model.
Output to AxCent
Quick and easy data transfer from AXIAL to AxCent is supported for blade shaping/stacking and further transfer to CFD and FEA programs.
AXIAL and AxCent are trademarks of Concepts ETI, Inc.
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