AxSTREAM is a

software suite A software suite (also known as an application suite) is a collection of computer programs (application software, or programming software) of related functionality, sharing a similar user interface and the ability to easily exchange data with each ...

turbine A turbine ( or ) (from the Greek , ''tyrbē'', or Latin ''turbo'', meaning vortex) is a rotary mechanical device that extracts energy from a fluid flow and converts it into useful work. The work produced by a turbine can be used for generating e ...

s and

compressor A compressor is a mechanical device that increases the pressure of a gas by reducing its volume. An air compressor is a specific type of gas compressor. Compressors are similar to pumps: both increase the pressure on a fluid and both can transp ...

s and also thermodynamic calculations of existing

turbomachinery Turbomachinery, in mechanical engineering, describes machines that transfer energy between a rotor and a fluid, including both turbines and compressors. While a turbine transfers energy from a fluid to a rotor, a compressor transfers energy from ...

on-design and off-design operation. The application area of the AxSTREAM software suite covers the design and redesign of turbomachinery, and educational fields. AxSTREAM is used for: *

Axial turbine An axial turbine is a turbine in which the flow of the working fluid is parallel to the shaft, as opposed to radial turbines, where the fluid runs around a shaft, as in a watermill. An axial turbine has a similar construction as an axial compressor ...

s *

Axial compressor An axial compressor is a gas compressor that can continuously pressurize gases. It is a rotating, airfoil-based compressor in which the gas or working fluid principally flows parallel to the axis of rotation, or axially. This differs from other ...

s *

Radial turbine A radial turbine is a turbine in which the flow of the working fluid is radial to the shaft. The difference between axial and radial turbines consists in the way the fluid flows through the components (compressor and turbine). Whereas for an axial ...

s *

Centrifugal compressor Centrifugal compressors, sometimes called impeller compressors or radial compressors, are a sub-class of dynamic axisymmetric work-absorbing turbomachinery. They achieve pressure rise by adding energy to the continuous flow of fluid through th ...

s *

Axial fan A fan is a powered machine used to create a flow of air. A fan consists of a rotating arrangement of vanes or blades, generally made of wood, plastic, or metal, which act on the air. The rotating assembly of blades and hub is known as an '' ...

s * Blowers *

Axial-flow pump An axial-flow pump, or AFP, is a common type of pump that essentially consists of a propeller (an axial impeller) in a pipe. The propeller can be driven directly by a sealed motor in the pipe or by electric motor or petrol/diesel engines mounted ...

s *

Centrifugal Pump Centrifugal pumps are used to transport fluids by the conversion of rotational kinetic energy to the hydrodynamic energy of the fluid flow. The rotational energy typically comes from an engine or electric motor. They are a sub-class of dynamic ...

s *

Turbopump A turbopump is a propellant pump with two main components: a rotodynamic pump and a driving gas turbine, usually both mounted on the same shaft, or sometimes geared together. They were initially developed in Germany in the early 1940s. The purpos ...

s While creating a new design, AxSTREAM allows the user to start from initial inlet and outlet parameters, geometrical constraints, required

mass flow rate In physics and engineering, mass flow rate is the mass of a substance which passes per unit of time. Its unit is kilogram per second in SI units, and slug per second or pound per second in US customary units. The common symbol is \dot (''ṁ ...

(capacity) and

rotational speed Rotational frequency (also known as rotational speed or rate of rotation) of an object Rotation around a fixed axis, rotating around an axis is the frequency of rotation of the object. Its unit is revolution per minute (rpm), cycle per second ...

to perform preliminary design, 1D/2D calculation and

optimization Mathematical optimization (alternatively spelled ''optimisation'') or mathematical programming is the selection of a best element, with regard to some criterion, from some set of available alternatives. It is generally divided into two subfi ...

. Finally, it develops the complete flow path geometry including meridional shapes, profiles, and IGES model of each blade

airfoil An airfoil (American English) or aerofoil (British English) is the cross-sectional shape of an object whose motion through a gas is capable of generating significant lift, such as a wing, a sail, or the blades of propeller, rotor, or turbine. ...

. As a multidisciplinary tool, AxSTREAM uses a simplified 1D structural module to check the design in the early phases during 1D/2D calculation and optimization. At the final stage of design, AxSTREAM performs 3D structural and vibration analysis to check the blade. It is also capable of producing a Campbell Diagram to show harmful frequencies to the system. AxSTREAM includes a CFD module to perform 3D calculation of flow in interblade channels for both separate blade rows and the whole flow path. During the optimization of new or existing flow paths AxSTREAM enables the user: * To change the geometry "manually" with the help of a user-friendly interface and further analysis in the 1D/2D solver and optimization using the existing infrastructure; * To optimize the flow path using Design of Experiment methods (DoE). While making thermodynamic calculations of the existing flow paths, AxSTREAM provides off-design operation characteristics and allows comparison with the experiment data. One of AxSTREAM's features is high integration of all software components which allows users to combine separate phases of design to create a single processing chain. Having designed a flow path, AxSTREAM can export the resulting geometry to CAD/CAE systems (e.g. UGS, Pro-E, SolidWorks, Fluent, AutoCAD, ANSYS CFX, NUMECA etc.).

External links

AxSTREAM for turbomachinery design

Preliminary Design of LP Gas Turbine of Aircraft Engine
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International Journal of Gas Turbine, Propulsion and Power Systems
{{DEFAULTSORT:Axstream Industrial design Industrial computing