New AxSTREAM Release

AxSTREAM v1.7.02 Release
BURLINGTON, Massachusetts, November 2, 2005

SoftInWay, Inc., one of the leading providers of turbomachinery design software, releases a new version 1.7.02 of AxSTREAM™ - a professional powerful software suite that encompasses the complete engineering process of turbomachinery flow path conceptual design and multidisplinary optimization.

AxSTREAM version 1.7.02 inherits all advantages of the preceded version appending some important features to amend and enrich the software capabilities in turbomachinery design and optimization.

The major new and weighty addition is a set of solvers that allows performing rapid preliminary design of a Multistage Axial Compressor flow path together with meanline analysis, cascades profiling, creation of airfoil 3D models, and generation of compressors maps.

New version provides the following additional key functional benefits to the turbomachinery designers that make the design and optimization process more sophisticated and convenient:

" Specialty profiling modes
" AxMAP - Performance Maps Generator
" New fluid types
" Working Fluid Designer (WFD)
" Extended Camberline Profiling
" Direct Data Extraction from Charts
" 3D Presentation of DoE Study Results
" AxSTREAM Session Recorder
" Custom DLL for leakage and loss calculations

The new functionalities streamline the process of turbine / compressor analysis, still more decrease time required for the project performance, and facilitate end-user operation.

Some details of a new update are as follows:

Specialty Profiling Modes
Beginning with v.1.7.02, AxSTREAM delivers special capabilities to perform within its own environment a flow path generation from the stages and the blades already designed.
New capabilities provide:
- import of 3D blade geometry with blade angles determination and interactive adjustment;
- import / export of profile / blade point array data from / to Excel tables;
- comparison of two types of the same profile and the corresponding curves of streamline;
- allotment of new profile type named 'fixed' for the profiles imported together with the blade;
- adjusting the blade by rotating to evaluate existing blade design suitability for new machines or for machines purposed for modernization.

AxMAP - Performance Maps Generator
Additionally to the AxPLAN DoE study, an optimization module already embedded in AxSTREAM, the system is replenished with a new AxMAP module. While AxPLAN requires minimum number of runs, at that, forces to compute all points formed by a design of numerical experiment, AxMAP permits to compute any randomly chosen region in the domain of two variables.

AxMAP provides supplementary capabilities for specifying a set of miscellaneous parameters. This is very convenient in the course of compressor map generation. As miscellaneous, there may be taken the parameters such as angle of blade rotation (separately for each blade row), inlet gas temperature, etc. The map can be presented as 2D and 3D topogram.
High speed solver in combination with individual controlling of each operation point makes it possible to generate maps involving minimal computing resources.
AxMAP gives an opportunity to build various turbine/compressor characteristics useful for evaluating off-design performance, overall power plant design, control system etc.

New Fluid Types (gas mix usage)
Meeting increasing demand in turbo machines operating on gas mixtures, wet steam included, a line of fluid types used in AxSTREAM is added now with several gas mixtures most frequently utilized in modern turbomachinery.
Now, the fluid types in AxSTREAM are presented as:
- a set of 'embedded fluids' delivered by the system:
o air as ideal gas;
o wet steam in IF-97 terms;
o aviation kerosene waste gases;
o blast furnace net gas;
o natural gas waste gases;
o methane
- externally delivered fluid types presented as DLLs, and
- 'tabulated' fluids generated by a special AxSTREAM's utility, namely, Working Fluid Designer.

Working Fluid Designer (WFD)
WFD utility generates unified tables that describe thermodynamical properties of the fluid (both pure gas and mixture).
WFD generates the fluids as:
- ideal gases mixture (pure gas component properties are those assigned by a designer);
- dry mixture of real gases (up to 37 components). Pure gas component properties are extracted from NIST (USA) REFPROP library;
- as wet mixtures of real gases (8 components max).

Extended Camberline Profiling
An alternative Camberline Profiling method was added to the existing Pressure/Suction side profiling. Camberline Profiling mode can be used for improving a cascade channel shape. It is very useful in the case when profiles are heavily distorted. The camberline profiling preserves inlet and outlet metal angles, wedge angles and edges radii already defined and allows interactive editing the camberline curvature and the thickness of spline curvature.

Direct Data Extraction/Input from/to Charts
The new feature makes data extraction/addition from/to the charts easy and convenient. The grid with charts' data supports Copy/ Paste operations for a whole table and for a column selected, this way accelerating Import /Export of the chart data from/to external sources (MS Excel, Word, etc.). This function permits fast updating of the data utilizing traditional operations.

3D Presentation of DoE Study Results
In AxSTREAM, DoE study simplifies and speeds up a search for turbomachine performance optimal solution in a process of multidisciplinary optimization. Versus previous versions of the software when DoE results were delivered as a flat topogram, this one provides 3D presentation of F(x, y) response functions. 3D window supports interactive zoom and pad options.

AxSTREAM Session Recorder
To facilitate the process of inverted monitoring in the course of performance, a Session Recorder was built in the software structure. Enabling Session Record/Play options, a user can record and then perform a retrospective review of the session, escorting the procedure with own commentaries via Insert_UserNote function.

Custom DLL for Leakage and Loss Calculations
Starting with release 1.7.02, AxSTREAM provides a capability to insert user custom loss models into computation. Such models have to be developed as Dynamic Link Libraries (DLL). SoftInWay provides DLL template for each model type.
New capabilities position AxSTREAM as one of industry's best price-to-performance solutions for axial turbomachinery design and optimization. AxSTREAM v1.7.02 release covers a complete engineering process of gas/steam axial turbine and compressor flow path conceptual design and multidisplinary optimization, and delivers an advanced engineering desktop solution for use in turbomachinery industry. This software empowers designers to apply a concurrent development approach, while solving coupled problems of performance, reliability, operating life, and low-cost design process.
Please address for more information and for orders.

About SoftInWay. A USA corporation, headquartered in Burlington, MA, SoftInWay's mission is to serve the high technology community by providing software products and engineering services in the area of research, design and digital prototyping of power generation equipment. The company develops products for rapid turbomachinery design, provides technical engineering services, and uses in-house and industry standard CFD, FEA and CAD tools to address design issues at the earliest possible stage to maximize engineering productivity and increase the efficiency and reliability of equipment. The core product, AxSTREAMTM, is an integrated solution based on the over 400 years of collective turbomachinery experience of the SoftInWay's engineering team, with the clear goal of bringing to industry a professional software tool for rapid, optimized turbomachinery flow path design.

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