Computational Fluid Dynamics Analysis of an Enhanced Tube with Backward Louvered Strip Insert
A computational solution of an enhanced tube equipped with a backward louvered strip insert with various pitches was evaluated in this work. A <i>k-ε</i> renormalized group turbulence model has been applied for the turbulent model. Different pitches, <i>S</i>, of 40,...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2019-09-01
|
| Series: | Energies |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1996-1073/12/17/3370 |
| _version_ | 1818013861234606080 |
|---|---|
| author | Agung Tri Wijayanta Budi Kristiawan Pranowo Agung Premono Muhammad Aziz |
| author_facet | Agung Tri Wijayanta Budi Kristiawan Pranowo Agung Premono Muhammad Aziz |
| author_sort | Agung Tri Wijayanta |
| collection | DOAJ |
| description | A computational solution of an enhanced tube equipped with a backward louvered strip insert with various pitches was evaluated in this work. A <i>k-ε</i> renormalized group turbulence model has been applied for the turbulent model. Different pitches, <i>S</i>, of 40, 50, and 60 mm were investigated for the Reynolds number with a range of 10,000−17,500 using water as a working fluid. The extra louvered strip caused fluid flow disturbance, so that the flow pattern formed more turbulence. The turbulent flow was characterized by the flow pattern on the back of the inserts that form a vortex. The vortices formed caused a better heat transfer. The results of the computational analysis showed that the enhanced tube had a louvered strip with a pitch distance <i>S</i> = 40, 50, and 60 mm could increase the Nusselt numbers to 1.81, 1.75, and 1.72, and the friction factor to 7.59, 6.51, and 5.77 times greater than the plain tube, respectively. |
| first_indexed | 2024-04-14T06:38:29Z |
| format | Article |
| id | doaj.art-793b2919736747fda9d5642437ea887e |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-04-14T06:38:29Z |
| publishDate | 2019-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-793b2919736747fda9d5642437ea887e2022-12-22T02:07:24ZengMDPI AGEnergies1996-10732019-09-011217337010.3390/en12173370en12173370Computational Fluid Dynamics Analysis of an Enhanced Tube with Backward Louvered Strip InsertAgung Tri Wijayanta0Budi Kristiawan1Pranowo2Agung Premono3Muhammad Aziz4Department of Mechanical Engineering, Faculty of Engineering, Universitas Sebelas Maret, Kampus UNS Kentingan, Jl. Ir. Sutami 36A Jebres, Surakarta 57126, IndonesiaDepartment of Mechanical Engineering, Faculty of Engineering, Universitas Sebelas Maret, Kampus UNS Kentingan, Jl. Ir. Sutami 36A Jebres, Surakarta 57126, IndonesiaResearch Group of Sustainable Thermofluids, Universitas Sebelas Maret, Kampus UNS Kentingan, Jl. Ir. Sutami 36A Jebres, Surakarta 57126, IndonesiaDepartment Mechanical Engineering, Jakarta State University, Jl. UNJ Kampus A, Jl. Rawamangun Muka Jakarta Timur 13220, IndonesiaInstitute of Industrial Science, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo 153-8505, JapanA computational solution of an enhanced tube equipped with a backward louvered strip insert with various pitches was evaluated in this work. A <i>k-ε</i> renormalized group turbulence model has been applied for the turbulent model. Different pitches, <i>S</i>, of 40, 50, and 60 mm were investigated for the Reynolds number with a range of 10,000−17,500 using water as a working fluid. The extra louvered strip caused fluid flow disturbance, so that the flow pattern formed more turbulence. The turbulent flow was characterized by the flow pattern on the back of the inserts that form a vortex. The vortices formed caused a better heat transfer. The results of the computational analysis showed that the enhanced tube had a louvered strip with a pitch distance <i>S</i> = 40, 50, and 60 mm could increase the Nusselt numbers to 1.81, 1.75, and 1.72, and the friction factor to 7.59, 6.51, and 5.77 times greater than the plain tube, respectively.https://www.mdpi.com/1996-1073/12/17/3370louvered strip insertpitchNusselt numberfriction factorturbulent flownumerical investigation |
| spellingShingle | Agung Tri Wijayanta Budi Kristiawan Pranowo Agung Premono Muhammad Aziz Computational Fluid Dynamics Analysis of an Enhanced Tube with Backward Louvered Strip Insert Energies louvered strip insert pitch Nusselt number friction factor turbulent flow numerical investigation |
| title | Computational Fluid Dynamics Analysis of an Enhanced Tube with Backward Louvered Strip Insert |
| title_full | Computational Fluid Dynamics Analysis of an Enhanced Tube with Backward Louvered Strip Insert |
| title_fullStr | Computational Fluid Dynamics Analysis of an Enhanced Tube with Backward Louvered Strip Insert |
| title_full_unstemmed | Computational Fluid Dynamics Analysis of an Enhanced Tube with Backward Louvered Strip Insert |
| title_short | Computational Fluid Dynamics Analysis of an Enhanced Tube with Backward Louvered Strip Insert |
| title_sort | computational fluid dynamics analysis of an enhanced tube with backward louvered strip insert |
| topic | louvered strip insert pitch Nusselt number friction factor turbulent flow numerical investigation |
| url | https://www.mdpi.com/1996-1073/12/17/3370 |
| work_keys_str_mv | AT agungtriwijayanta computationalfluiddynamicsanalysisofanenhancedtubewithbackwardlouveredstripinsert AT budikristiawan computationalfluiddynamicsanalysisofanenhancedtubewithbackwardlouveredstripinsert AT pranowo computationalfluiddynamicsanalysisofanenhancedtubewithbackwardlouveredstripinsert AT agungpremono computationalfluiddynamicsanalysisofanenhancedtubewithbackwardlouveredstripinsert AT muhammadaziz computationalfluiddynamicsanalysisofanenhancedtubewithbackwardlouveredstripinsert |