Large eddy simulation of a thermal impinging jet using the lattice Boltzmann method
A compressible Hybrid Lattice Boltzmann Method solver is used to perform a wall-resolved Large eddy simulation of an isothermal axisymmetric jet issuing from a pipe and impinging on a heated flat plate at a Reynolds number of 23 000, a Mach number of 0.1, and an impingement distance of two jet diame...
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| Veröffentlicht in: | Physics of fluids (1994) 2022-05, Vol.34 (5) |
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| container_issue | 5 |
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| container_title | Physics of fluids (1994) |
| container_volume | 34 |
| creator | Nguyen, M. Boussuge, J. F. Sagaut, P. Larroya-Huguet, J. C. |
| description | A compressible Hybrid Lattice Boltzmann Method solver is used to perform a wall-resolved Large eddy simulation of an isothermal axisymmetric jet issuing from a pipe and impinging on a heated flat plate at a Reynolds number of 23 000, a Mach number of 0.1, and an impingement distance of two jet diameters. The jet flow field statistics, Nusselt number profile (including the secondary peak), and shear stress profile were well reproduced. The azimuthal coherence of the primary vortical structures was relatively low, leading to no discernible temporal periodicity of the azimuthally averaged Nusselt number at the location of the secondary peak. While local unsteady near-wall flow separation was observed in the wall jet, this flow separation did not exhibit azimuthal coherence and was not found to be the only cause of the thermal spots blue, which lead to the secondary peak in the Nusselt number, as stream-wise oriented structures also played a significant role in increasing the local heat transfer. |
| doi_str_mv | 10.1063/5.0088410 |
| format | Article |
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F. ; Sagaut, P. ; Larroya-Huguet, J. C.</creator><creatorcontrib>Nguyen, M. ; Boussuge, J. F. ; Sagaut, P. ; Larroya-Huguet, J. C.</creatorcontrib><description>A compressible Hybrid Lattice Boltzmann Method solver is used to perform a wall-resolved Large eddy simulation of an isothermal axisymmetric jet issuing from a pipe and impinging on a heated flat plate at a Reynolds number of 23 000, a Mach number of 0.1, and an impingement distance of two jet diameters. The jet flow field statistics, Nusselt number profile (including the secondary peak), and shear stress profile were well reproduced. The azimuthal coherence of the primary vortical structures was relatively low, leading to no discernible temporal periodicity of the azimuthally averaged Nusselt number at the location of the secondary peak. While local unsteady near-wall flow separation was observed in the wall jet, this flow separation did not exhibit azimuthal coherence and was not found to be the only cause of the thermal spots blue, which lead to the secondary peak in the Nusselt number, as stream-wise oriented structures also played a significant role in increasing the local heat transfer.</description><identifier>ISSN: 1070-6631</identifier><identifier>EISSN: 1089-7666</identifier><identifier>DOI: 10.1063/5.0088410</identifier><identifier>CODEN: PHFLE6</identifier><language>eng</language><publisher>Melville: American Institute of Physics</publisher><subject>Coherence ; Compressibility ; Flat plates ; Flow separation ; Fluid dynamics ; Fluid flow ; Fluid mechanics ; Jet flow ; Jet impingement ; Large eddy simulation ; Mach number ; Mechanics ; Nusselt number ; Physics ; Reynolds number ; Separation ; Shear stress ; Vortices ; Wall flow ; Wall jets</subject><ispartof>Physics of fluids (1994), 2022-05, Vol.34 (5)</ispartof><rights>Author(s)</rights><rights>2022 Author(s). 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F.</creatorcontrib><creatorcontrib>Sagaut, P.</creatorcontrib><creatorcontrib>Larroya-Huguet, J. C.</creatorcontrib><title>Large eddy simulation of a thermal impinging jet using the lattice Boltzmann method</title><title>Physics of fluids (1994)</title><description>A compressible Hybrid Lattice Boltzmann Method solver is used to perform a wall-resolved Large eddy simulation of an isothermal axisymmetric jet issuing from a pipe and impinging on a heated flat plate at a Reynolds number of 23 000, a Mach number of 0.1, and an impingement distance of two jet diameters. The jet flow field statistics, Nusselt number profile (including the secondary peak), and shear stress profile were well reproduced. The azimuthal coherence of the primary vortical structures was relatively low, leading to no discernible temporal periodicity of the azimuthally averaged Nusselt number at the location of the secondary peak. While local unsteady near-wall flow separation was observed in the wall jet, this flow separation did not exhibit azimuthal coherence and was not found to be the only cause of the thermal spots blue, which lead to the secondary peak in the Nusselt number, as stream-wise oriented structures also played a significant role in increasing the local heat transfer.</description><subject>Coherence</subject><subject>Compressibility</subject><subject>Flat plates</subject><subject>Flow separation</subject><subject>Fluid dynamics</subject><subject>Fluid flow</subject><subject>Fluid mechanics</subject><subject>Jet flow</subject><subject>Jet impingement</subject><subject>Large eddy simulation</subject><subject>Mach number</subject><subject>Mechanics</subject><subject>Nusselt number</subject><subject>Physics</subject><subject>Reynolds number</subject><subject>Separation</subject><subject>Shear stress</subject><subject>Vortices</subject><subject>Wall flow</subject><subject>Wall jets</subject><issn>1070-6631</issn><issn>1089-7666</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2022</creationdate><recordtype>article</recordtype><recordid>eNp9kN9LwzAQx4MoOKcP_gcBnxQ6L_2RtI9zqBMKPqjP4ZpmW0bbzCQV5l9v60TfhIM77j58OT6EXDKYMeDJbTYDyPOUwRGZMMiLSHDOj8dZQMR5wk7JmfdbAEiKmE_IS4luramu6z31pu0bDMZ21K4o0rDRrsWGmnZnuvVQdKsD7f04DTc6sMEoTe9sEz5b7Dra6rCx9Tk5WWHj9cVPn5K3h_vXxTIqnx-fFvMyUrHgEFU5qjhTjGcgdIFVLlSaqriqoWKgClVBnLI6Qc4xK1iiMEdRK1Aqw1RUmiVTcn3I3WAjd8606PbSopHLeSnHHSScFwWwj5G9OrA7Z9977YPc2t51w3syHrQIloqM_yUqZ713evUby0COfmUmf_wO7M2B9cqEb2v_wF-_bnkP</recordid><startdate>202205</startdate><enddate>202205</enddate><creator>Nguyen, M.</creator><creator>Boussuge, J. 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C.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c2760-b8ac25c16507e9ab87c44c2bd0b10c9cb0241d3a66a5913ca8a7dc0cc5a47be13</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2022</creationdate><topic>Coherence</topic><topic>Compressibility</topic><topic>Flat plates</topic><topic>Flow separation</topic><topic>Fluid dynamics</topic><topic>Fluid flow</topic><topic>Fluid mechanics</topic><topic>Jet flow</topic><topic>Jet impingement</topic><topic>Large eddy simulation</topic><topic>Mach number</topic><topic>Mechanics</topic><topic>Nusselt number</topic><topic>Physics</topic><topic>Reynolds number</topic><topic>Separation</topic><topic>Shear stress</topic><topic>Vortices</topic><topic>Wall flow</topic><topic>Wall jets</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Nguyen, M.</creatorcontrib><creatorcontrib>Boussuge, J. F.</creatorcontrib><creatorcontrib>Sagaut, P.</creatorcontrib><creatorcontrib>Larroya-Huguet, J. C.</creatorcontrib><collection>CrossRef</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Hyper Article en Ligne (HAL)</collection><collection>Hyper Article en Ligne (HAL) (Open Access)</collection><jtitle>Physics of fluids (1994)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Nguyen, M.</au><au>Boussuge, J. F.</au><au>Sagaut, P.</au><au>Larroya-Huguet, J. C.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Large eddy simulation of a thermal impinging jet using the lattice Boltzmann method</atitle><jtitle>Physics of fluids (1994)</jtitle><date>2022-05</date><risdate>2022</risdate><volume>34</volume><issue>5</issue><issn>1070-6631</issn><eissn>1089-7666</eissn><coden>PHFLE6</coden><abstract>A compressible Hybrid Lattice Boltzmann Method solver is used to perform a wall-resolved Large eddy simulation of an isothermal axisymmetric jet issuing from a pipe and impinging on a heated flat plate at a Reynolds number of 23 000, a Mach number of 0.1, and an impingement distance of two jet diameters. The jet flow field statistics, Nusselt number profile (including the secondary peak), and shear stress profile were well reproduced. The azimuthal coherence of the primary vortical structures was relatively low, leading to no discernible temporal periodicity of the azimuthally averaged Nusselt number at the location of the secondary peak. While local unsteady near-wall flow separation was observed in the wall jet, this flow separation did not exhibit azimuthal coherence and was not found to be the only cause of the thermal spots blue, which lead to the secondary peak in the Nusselt number, as stream-wise oriented structures also played a significant role in increasing the local heat transfer.</abstract><cop>Melville</cop><pub>American Institute of Physics</pub><doi>10.1063/5.0088410</doi><tpages>18</tpages><orcidid>https://orcid.org/0000-0002-6338-6954</orcidid><orcidid>https://orcid.org/0000-0001-5349-0582</orcidid><orcidid>https://orcid.org/0000-0002-3785-120X</orcidid><oa>free_for_read</oa></addata></record> |
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| ispartof | Physics of fluids (1994), 2022-05, Vol.34 (5) |
| issn | 1070-6631 1089-7666 |
| language | eng |
| recordid | cdi_scitation_primary_10_1063_5_0088410 |
| source | AIP Journals Complete; Alma/SFX Local Collection |
| subjects | Coherence Compressibility Flat plates Flow separation Fluid dynamics Fluid flow Fluid mechanics Jet flow Jet impingement Large eddy simulation Mach number Mechanics Nusselt number Physics Reynolds number Separation Shear stress Vortices Wall flow Wall jets |
| title | Large eddy simulation of a thermal impinging jet using the lattice Boltzmann method |
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