Numerical Investigations Of Flows in Axial and Radial Fans Using OpenFOAM
Abstract
In this investigation OpenFOAM is used for numerical computations of complex flows
in axial and radial fans. Because of the low Mach number and small pressure differences,
air is considered as incompressible. Turbulence is modeled using RANS approach, where
performance of several turbulence models are tested. Both steady and unsteady computations are performed. For steady computations frozen rotor approach is used, with
GGI interpolation[2] on the stator-rotor interfaces. In this case, in order to save compu-
tational time, the computational domain of the rotor is one segment (blade passage) of
the complete fan. At lateral boundaries, cyclic boundary condition is used. The process
of determination of the characteristic curve, starting from CAD geometry of the fan, is
completely automated with Python scripts. Numerical results of characteristic curve are
compared with experimental measurements. For block-structured, hexahedral grid generation commercial software ICEM CFD was us...ed. Also, OpenFOAM results are compared
with results obtained with ANSYS-CFX software. For unsteady computations, complete flow domain was modeled, with relative mesh motion (i.e. rotation) in rotor domain.
Keywords:
Axial and radial fans / steady and unsteady flow, / swirl / vortex coreSource:
OFW 2014, 2014Funding / projects:
- Application of Novel Measurement and Computational Techniques on Investigation of Air Flow in Ventilation Systems of Energy Extremely Efficient (“Passive”) Buildings (RS-MESTD-Technological Development (TD or TR)-35046)
URI
https://openfoam-extend.sourceforge.net/OpenFOAM_Workshops/OFW9_2014_Zagreb/download.htmhttps://machinery.mas.bg.ac.rs/handle/123456789/5524
Collections
Institution/Community
Mašinski fakultetTY - CONF AU - Ćoćić, Aleksandar AU - Ratter, Heiko AU - Lečić, Milan AU - Gabi, Martin PY - 2014 UR - https://openfoam-extend.sourceforge.net/OpenFOAM_Workshops/OFW9_2014_Zagreb/download.htm UR - https://machinery.mas.bg.ac.rs/handle/123456789/5524 AB - In this investigation OpenFOAM is used for numerical computations of complex flows in axial and radial fans. Because of the low Mach number and small pressure differences, air is considered as incompressible. Turbulence is modeled using RANS approach, where performance of several turbulence models are tested. Both steady and unsteady computations are performed. For steady computations frozen rotor approach is used, with GGI interpolation[2] on the stator-rotor interfaces. In this case, in order to save compu- tational time, the computational domain of the rotor is one segment (blade passage) of the complete fan. At lateral boundaries, cyclic boundary condition is used. The process of determination of the characteristic curve, starting from CAD geometry of the fan, is completely automated with Python scripts. Numerical results of characteristic curve are compared with experimental measurements. For block-structured, hexahedral grid generation commercial software ICEM CFD was used. Also, OpenFOAM results are compared with results obtained with ANSYS-CFX software. For unsteady computations, complete flow domain was modeled, with relative mesh motion (i.e. rotation) in rotor domain. C3 - OFW 2014 T1 - Numerical Investigations Of Flows in Axial and Radial Fans Using OpenFOAM UR - https://hdl.handle.net/21.15107/rcub_machinery_5524 ER -
@conference{ author = "Ćoćić, Aleksandar and Ratter, Heiko and Lečić, Milan and Gabi, Martin", year = "2014", abstract = "In this investigation OpenFOAM is used for numerical computations of complex flows in axial and radial fans. Because of the low Mach number and small pressure differences, air is considered as incompressible. Turbulence is modeled using RANS approach, where performance of several turbulence models are tested. Both steady and unsteady computations are performed. For steady computations frozen rotor approach is used, with GGI interpolation[2] on the stator-rotor interfaces. In this case, in order to save compu- tational time, the computational domain of the rotor is one segment (blade passage) of the complete fan. At lateral boundaries, cyclic boundary condition is used. The process of determination of the characteristic curve, starting from CAD geometry of the fan, is completely automated with Python scripts. Numerical results of characteristic curve are compared with experimental measurements. For block-structured, hexahedral grid generation commercial software ICEM CFD was used. Also, OpenFOAM results are compared with results obtained with ANSYS-CFX software. For unsteady computations, complete flow domain was modeled, with relative mesh motion (i.e. rotation) in rotor domain.", journal = "OFW 2014", title = "Numerical Investigations Of Flows in Axial and Radial Fans Using OpenFOAM", url = "https://hdl.handle.net/21.15107/rcub_machinery_5524" }
Ćoćić, A., Ratter, H., Lečić, M.,& Gabi, M.. (2014). Numerical Investigations Of Flows in Axial and Radial Fans Using OpenFOAM. in OFW 2014. https://hdl.handle.net/21.15107/rcub_machinery_5524
Ćoćić A, Ratter H, Lečić M, Gabi M. Numerical Investigations Of Flows in Axial and Radial Fans Using OpenFOAM. in OFW 2014. 2014;. https://hdl.handle.net/21.15107/rcub_machinery_5524 .
Ćoćić, Aleksandar, Ratter, Heiko, Lečić, Milan, Gabi, Martin, "Numerical Investigations Of Flows in Axial and Radial Fans Using OpenFOAM" in OFW 2014 (2014), https://hdl.handle.net/21.15107/rcub_machinery_5524 .