AxSTREAM 1.7 Release Notes

Release notes of AxSTREAM V 1.7.08.02

• Enhanced initial estimation for velocities for Axial Compressors
• Enhanced 1D solver for centrifugal compressor with regards to Reynolds numbers

Release notes of AxSTREAM V 1.7.08

• Introduced for in-house testing  radial turbine design and meanline and axisymmetric analysis options
• Introduced for in-house testing centrifugal compressor design and design and meanline and axisymmetric analysis options
• Reworked License Server and License Administrator to support radial turbomachinery licensing
• Enhanced stability of centrifugal compressor preliminary design
• Introduced the option of single-row stages (stages with single nozzles or blades crown)
• Enhanced calculation procedures for axial turbine stages with significant radial velocity component (diagonal stages)
• Extended the scope of DoE optimization engine AxPLAN to explore the opportunity of existing axial turbine design modernization by airfoils rotation
• Added new profiling mode “Fixed” to import external blade geometry.
• Added special option to explore influence of variation of incidence angle on profile performance (losses, flow separation, etc)
• Added option to populated Standard profile to all stations/blades with “Apply to stage/all” options
• Fixed problem in “backward” engineering of long blade stages.

Release notes of AxSTREAM™ V 1.7.06

• Complete kit of Axial Compressors modules including Stage Axisymmetric Analysis
• New common charts visualiser of stage-wise and span-wise properties distribution
• Support ATLAS profile library for compressor cascade profiling

A number of additions and enhancements :

• added the selection of prismatic/vortex blade design
• profile may be inserted from ATLAS library as “adjusted-to-stagger“
• added velocities triangles and flow angles notation on profile view
• added Buri criteria (flow separation) chart to Profiling flow charts
• added blades and vanes volume calculation
• added TE global axial position calculation (estimation of flow path total length)
• added stations TE/LE axial position and margins charts to Blade Design window and added margins visualization on profile view
• added auto align option TE/LE Blade Design (for custom profiles only)
• added bending and tensile stress margin charts to Blade 3D window
• changed cylinder preliminary design dialog (added current values and percent of adjustment)
• changed S1 optimization dialog – current chord value is displayed
• AxSTREAM project file now is stored as compound document ( project info is available in Windows Explorer)
• added history record about user and date of last document modification
• added 'Journal options" menu to application (journal state during document opening : clean, open, ask)
• added setting custom preferences for new project: units, journal opening state, time delay factor for session playback and preferences dialog
• added "Apply to section" in group edit dialog

Release notes of AxSTREAM V 1.7.02

• Beginning with v.1.7.02, AxSTREAM delivers special capabilities to perform the task mentioned above within its own environment.
    - 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.

• Additionally to the AxPLAN DoE study and optimization module already embedded in AxSTREAM, the system is replenished with a new PMG module.
Contrary to AxPLAN, which requires minimum number of runs yet, at that, forces to compute all points formed by a design of numerical experiment, PMG permits to compute any randomly chosen region in the domain of two variables.
Maps Generator provides supplementary capabilities for specifying a set of miscellaneous parameters. This is very convenient in the course of compressor map generation.

• Added Fluid Designer (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).

Release notes of AxSTREAM V 1.6.06

• An alternative Camberline profiling method was added to existing Pressure/Suction profiling.
Camberline profiling preserves defined inlet and outlet metal angles, wedge angles and edges radii. Camberline profiling allows interactive editing camberline curvature and thickness spline curvature.

• The feature what make easy extraction data from charts is added to AxSTREAM . The grid with charts data can be called via context menu (Right Mouse Click). Grid support Copy_Table/Copy_Column options. This way charts data ( and loads in particular) may be exported to other applications (EXCEL, Word, etc.)

• As enchantment of existing presentation of DoE study results as flat topogram the 3D presentation of F(x, y) response functions. 3D window supports interactive zoom and pad.

• To provide better introduction to AxSTREAM and enhance customer technical support, a Session Record/Player was added to AxSTREAM. In the course of recording, it is possible to make commentaries with the help of Insert UserNote function.

• Blade geometry stored in format similar to BladeGen/TurboGrid “CURVE” file may be imported to AxSTREAM and angle will be extracted from profile