OpenFOAM simulations of jet-in-crossflow (JICF) phenomenon

Extensive experimental studies have been made on the subject of JICF. Many numerical studies have also been made, however, studies in JICF making use of OpenFOAM in particular are comparatively limited. The capabilities of OpenFOAM to model the jet-in crossflow (JICF) phenomenon will be studied...

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Main Author: Tay, Leonard Yun Ze
Other Authors: New Tze How, Daniel
Format: Final Year Project
Language:English
Published: Nanyang Technological University 2021
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Online Access:https://hdl.handle.net/10356/154408
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Institution: Nanyang Technological University
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spelling sg-ntu-dr.10356-1544082021-12-23T12:28:00Z OpenFOAM simulations of jet-in-crossflow (JICF) phenomenon Tay, Leonard Yun Ze New Tze How, Daniel School of Mechanical and Aerospace Engineering DTHNEW@ntu.edu.sg Engineering::Mechanical engineering::Fluid mechanics Engineering::Aeronautical engineering Extensive experimental studies have been made on the subject of JICF. Many numerical studies have also been made, however, studies in JICF making use of OpenFOAM in particular are comparatively limited. The capabilities of OpenFOAM to model the jet-in crossflow (JICF) phenomenon will be studied in this paper. Simulations using both the Reynolds-Averaged Navier Stokes (RANS) and Large Eddy Simulation (LES) models of OpenFOAM were tested, using a mesh converted for use in OpenFOAM which was generated in ANSYS meshing software. The JICF case studied is of an elliptical jet orifice with low aspect ratio of 0.3. The model fluid used for both the jet and crossflow is water, with a Reynolds number of Re = 2976 at the jet inlet. The velocity ratio between the jet and crossflow inlets were kept at a nominal value of V/U = 4. The analysis of the RANS simulation shows decent agreement with experimental results, and the RANS results were used to initialize the fields for the LES simulation. The LES simulation was able to predict the major key flow features in the JICF, as well as flow features specific to JICF with an elliptical jet orifice, such as vortex entanglement along the leading-edge. Discrepancies were found between the simulation and experimental results, the likely causes of which are the inlet conditions in the simulation, and the overall mesh quality. Bachelor of Engineering (Aerospace Engineering) 2021-12-23T12:27:59Z 2021-12-23T12:27:59Z 2021 Final Year Project (FYP) Tay, L. Y. Z. (2021). OpenFOAM simulations of jet-in-crossflow (JICF) phenomenon. Final Year Project (FYP), Nanyang Technological University, Singapore. https://hdl.handle.net/10356/154408 https://hdl.handle.net/10356/154408 en C131 application/pdf Nanyang Technological University
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic Engineering::Mechanical engineering::Fluid mechanics
Engineering::Aeronautical engineering
spellingShingle Engineering::Mechanical engineering::Fluid mechanics
Engineering::Aeronautical engineering
Tay, Leonard Yun Ze
OpenFOAM simulations of jet-in-crossflow (JICF) phenomenon
description Extensive experimental studies have been made on the subject of JICF. Many numerical studies have also been made, however, studies in JICF making use of OpenFOAM in particular are comparatively limited. The capabilities of OpenFOAM to model the jet-in crossflow (JICF) phenomenon will be studied in this paper. Simulations using both the Reynolds-Averaged Navier Stokes (RANS) and Large Eddy Simulation (LES) models of OpenFOAM were tested, using a mesh converted for use in OpenFOAM which was generated in ANSYS meshing software. The JICF case studied is of an elliptical jet orifice with low aspect ratio of 0.3. The model fluid used for both the jet and crossflow is water, with a Reynolds number of Re = 2976 at the jet inlet. The velocity ratio between the jet and crossflow inlets were kept at a nominal value of V/U = 4. The analysis of the RANS simulation shows decent agreement with experimental results, and the RANS results were used to initialize the fields for the LES simulation. The LES simulation was able to predict the major key flow features in the JICF, as well as flow features specific to JICF with an elliptical jet orifice, such as vortex entanglement along the leading-edge. Discrepancies were found between the simulation and experimental results, the likely causes of which are the inlet conditions in the simulation, and the overall mesh quality.
author2 New Tze How, Daniel
author_facet New Tze How, Daniel
Tay, Leonard Yun Ze
format Final Year Project
author Tay, Leonard Yun Ze
author_sort Tay, Leonard Yun Ze
title OpenFOAM simulations of jet-in-crossflow (JICF) phenomenon
title_short OpenFOAM simulations of jet-in-crossflow (JICF) phenomenon
title_full OpenFOAM simulations of jet-in-crossflow (JICF) phenomenon
title_fullStr OpenFOAM simulations of jet-in-crossflow (JICF) phenomenon
title_full_unstemmed OpenFOAM simulations of jet-in-crossflow (JICF) phenomenon
title_sort openfoam simulations of jet-in-crossflow (jicf) phenomenon
publisher Nanyang Technological University
publishDate 2021
url https://hdl.handle.net/10356/154408
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