Fans & Blowers

Fans and blowers are commonly used to move air and other gases. They come in a wide range of shapes and sizes and may be axial, mixed flow or centrifugal in nature. The equipment is used in many industries including HVAC, power generation, process and transportation.

Blowers differ from compressors in that the pressure ratio is generally lower, and fluid compressibility is usually less significant.

Like other rotating equipment, fans and blowers must be efficient. Other important factors include operating range, compact size (particularly when used in transportation applications) and limited noise output (such as for HVAC supplications). Additionally, manufacturing costs often restricts design options, further challenging the product designer.

Flow pattern and vortex formation over blade tip of low-speed HVAC fan

Courtesy Cranfield University.

In cases in which fans and blowers are integral to a complex system, device installation may be suboptimal. For example, space considerations may dictate installation of the fan close to upstream bends, providing less-than-favorable entry flow conditions.

Rotating machinery-specific engineering simulation tools from ANSYS enable analysis of the machine as installed, providing the opportunity to understand machine performance in the real-world environment. The ANSYS portfolio also provides comprehensive and full-featured mechanical, fluid dynamics and electronic simulation tools.

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Blade Design Blade Design

ANSYS BladeModeler provides tools for the detailed geometric specification of fan and blower blades, axial, mixed-flow or radial. These tools can be used within the ANSYS Workbench environment or connected into an existing design system, enabling high-productivity design and analysis, including optimization.

Blower geometry created with ANSYS BladeModeler

Meshing Meshing

General-purpose and specialized tools from ANSYS enable rapid development of high-quality meshes for bladed components as well as for often-complex stationary components, including inlets and volutes. ANSYS TurboGrid software is the tool of choice for optimal high-quality hexahedral blade row meshes that are scalable, consistent, repeatable and automatically generated.

Custom Pre- & Post-Processing  Custom Pre- & Post-Processing

Rotating machinery-specific pre- and post-processing tools simplify the process and reduce overall simulation time. All general and rotating-specific functions are available in a modern graphical user interface or via command, ideal for repeatable, automated operation.

Quiet fan developed by simulating complete railcar cooling system

Courtesy Voith Turbo.

Rapid Throughflow Analysis Rapid Throughflow Analysis

The ANSYS throughflow solver ANSYS VISTA TF is ideal for rapid and reliable impeller design as well as for single- or multi-stage analysis for multiple blade row applications. A wide selection of models and access to the same post-processing as full ANSYS CFD ensures wide applicability and high-productivity usage.