ANSYS BladeModeler 11.0 Practical 1 Axial Turbine Stator

Concepts Starting BladeGen within WorkBench Opening an existing design Mouse functions and viewer options Using BladeEditor to import model to DesignModeler Discussion of different workflows based type of analysis to be performed

Axial Turbine Stator BladeGen file: Axial_Turbine_Stator.bgd Conditions Fluid: Air Ideal Gas Inlet flow direction: normal to inlet Inlet Pt: 445 [psia] Inlet Tt: 783 [o F] Exit Ps: 223 [psia]

The ANSYS Start Page Launch ANSYS BladeModeler: Click ANSYS WorkBench icon In Windows start ANSYS Workbench under Start Menu > Programs > ANSYS 11.0 The Workbench-based products are no longer separate applications. Instead, Design Simulation, DesignModeler, and DesignXplorer are all launched from one “ANSYS Workbench” icon in the Start Menu. Workbench can also be accessed directly from supported CAD systems from an “ANSYS 7.1” pull-down menu, as shown in the middle. Lastly, Workbench can also be launched via the “ANSYS Classic” icon, which was previously known as the “ANSYS Interactive” icon. When launching ANSYS Classic, selecting the “ANSYS Workbench Environment” button on the bottom, as shown on the right, will launch Workbench instead of the classic Environment.

BladeGen in Workbench Launch BladeGen from the ANSYS start page Click the Blade Geometry icon

BladeGen – Open Design Open file > Axial_Turbine_Stator.bgd

BladeGen – Aux View Switch to 3D view using this icon Use these icons to show one, two, or all blade sections Show geometry as wireframe, meshed, and shaded The Display Group Control Dialog determines which components are shown

BladeGen – Mouse commands Common mouse commands – try manipulating the different views We won’t make any modifications to this geometry

Export the geometry to TurboGrid for meshing (CFD analysis) BladeModeler Now that the geometry is complete, the next step in the analysis process could be: Export the geometry to TurboGrid for meshing (CFD analysis) Import the geometry into DesignModeler Add features Generate fluid domain for meshing in CFX-Mesh, ICEM (mesher other than TurboGrid for CFD analysis) Generate solid model for Simulation (Finite Element Analysis) Export blade geometry for prototyping

ANSYS BladeModeler Practical 1 Exporting TurboGrid curve files

Export to TurboGrid If we are to use TurboGrid to mesh the blade, export the .curve files Click the TurboGrid Export icon Save the .curve files as shown below

ANSYS BladeModeler Practical 1 Importing Blade Geometry in to DesignModeler

BladeModeler – Project Page Switch back to the project page Click New geometry to Launch DesignModeler

DesignModeler When prompted to select units, choose mm Click the BladeEditor Icon to import the blade geometry

DesignModeler By default, the design open in BladeGen is selected > click Open

DesignModeler The importBGD panel is activated Change Hub Offset to 2 Click the Generate icon

DesignModeler Two Parts are created Solid Body is created for FEA or CAD export Fluid Zone for CFD simulation created

DesignModeler Insert a fillet where the blade meets the hub Right click on Fluid Body 1 Insert > Fixed Radius

DesignModeler Select the 5 edges the make up the intersection of the main blade and hub surface on the blade surrounded by the fluid domain Hold CTRL key to multi select

DesignModeler Tip: There are two tiny surfaces (one at the leading edge, one at the trailing edge) Zoom in to select these

DesignModeler Once all 5 edge have been selected, click Apply Select 2mm for Radius

DesignModeler Click Generate icon

DesignModeler Note fillet is added to solid and fluid parts

DesignModeler For a CFD simulation, we can suppress the solid body Right click on the solid in the tree representing the turbine and click Suppress Body This leaves the Fluid Body Save file File > Save Name Axial_Turbine_Stator.agdb

Project Page – Next Steps Select .inf file and open in TurboGrid to create a mesh for CFD OR Select New Mesh to create a CFD mesh on the filleted blade geometry using CFX Mesh OR Select New Simulation to perform a Finite Element Analysis