Numerical Simulation of Flow in Rectangular Duct with Different Obstruction Heights
In this study, a simulation model inside a channel of rectangular section with high of (0.16 m) containing two rectangular obstruction plates were aligned variable heights normal to the direction of flow, use six model of the obstructions height of (0.059, 0.066, 0.073, 0.08 and 0.087 m) were compar...
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| Format: | Article |
| Language: | English |
| Published: |
University of Baghdad
2015-11-01
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| Series: | Journal of Engineering |
| Online Access: | https://www.jcoeng.edu.iq/index.php/main/article/view/322/279 |
| _version_ | 1797714130765873152 |
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| author | Kadhum Audaa Jehhef |
| author_facet | Kadhum Audaa Jehhef |
| author_sort | Kadhum Audaa Jehhef |
| collection | DOAJ |
| description | In this study, a simulation model inside a channel of rectangular section with high of (0.16 m) containing two rectangular obstruction plates were aligned variable heights normal to the direction of flow, use six model of the obstructions height of (0.059, 0.066, 0.073, 0.08 and 0.087 m) were compared with the flow behavior of the same duct without obstructions. To predict the velocity profile, pressure distribution, pressure coefficient and turbulence kinetic energy flow of air, the differential equations which describe the flow were approximated by the finite volumes method for two dimensional, by using commercial software package (FLUENT) with standard of k-ε model two dimensions turbulence flow. The obtained results show that the velocity and the turbulence kinetic energy increase with increasing the obstructions height perpendicular to the flow direction. Streamlines contours used to show mixing of averaged flow-field in one pitch length. The streamlines helped to distinguish between important separated regions of the flow as well. Compared the first model of height of obstruction (0.059 m) with the fifth model of the obstruction of height (0.087 m) it is obtained an increasing in velocity about of (71 %) at the first obstruction and an increasing about (47 %) at the second obstruction. The data obtained by simulation are matching with previous the literature value. |
| first_indexed | 2024-03-12T07:47:23Z |
| format | Article |
| id | doaj.art-f6f54bddc1af4ec3b747f1e4f8f06df1 |
| institution | Directory Open Access Journal |
| issn | 1726-4073 2520-3339 |
| language | English |
| last_indexed | 2024-03-12T07:47:23Z |
| publishDate | 2015-11-01 |
| publisher | University of Baghdad |
| record_format | Article |
| series | Journal of Engineering |
| spelling | doaj.art-f6f54bddc1af4ec3b747f1e4f8f06df12023-09-02T20:54:51ZengUniversity of BaghdadJournal of Engineering1726-40732520-33392015-11-01211194110Numerical Simulation of Flow in Rectangular Duct with Different Obstruction HeightsKadhum Audaa JehhefIn this study, a simulation model inside a channel of rectangular section with high of (0.16 m) containing two rectangular obstruction plates were aligned variable heights normal to the direction of flow, use six model of the obstructions height of (0.059, 0.066, 0.073, 0.08 and 0.087 m) were compared with the flow behavior of the same duct without obstructions. To predict the velocity profile, pressure distribution, pressure coefficient and turbulence kinetic energy flow of air, the differential equations which describe the flow were approximated by the finite volumes method for two dimensional, by using commercial software package (FLUENT) with standard of k-ε model two dimensions turbulence flow. The obtained results show that the velocity and the turbulence kinetic energy increase with increasing the obstructions height perpendicular to the flow direction. Streamlines contours used to show mixing of averaged flow-field in one pitch length. The streamlines helped to distinguish between important separated regions of the flow as well. Compared the first model of height of obstruction (0.059 m) with the fifth model of the obstruction of height (0.087 m) it is obtained an increasing in velocity about of (71 %) at the first obstruction and an increasing about (47 %) at the second obstruction. The data obtained by simulation are matching with previous the literature value.https://www.jcoeng.edu.iq/index.php/main/article/view/322/279 |
| spellingShingle | Kadhum Audaa Jehhef Numerical Simulation of Flow in Rectangular Duct with Different Obstruction Heights Journal of Engineering |
| title | Numerical Simulation of Flow in Rectangular Duct with Different Obstruction Heights |
| title_full | Numerical Simulation of Flow in Rectangular Duct with Different Obstruction Heights |
| title_fullStr | Numerical Simulation of Flow in Rectangular Duct with Different Obstruction Heights |
| title_full_unstemmed | Numerical Simulation of Flow in Rectangular Duct with Different Obstruction Heights |
| title_short | Numerical Simulation of Flow in Rectangular Duct with Different Obstruction Heights |
| title_sort | numerical simulation of flow in rectangular duct with different obstruction heights |
| url | https://www.jcoeng.edu.iq/index.php/main/article/view/322/279 |
| work_keys_str_mv | AT kadhumaudaajehhef numericalsimulationofflowinrectangularductwithdifferentobstructionheights |