Laminar Wall Jet Flow and Heat Transfer over a Shallow Cavity
This paper presents the detailed simulation of two-dimensional incompressible laminar wall jet flow over a shallow cavity. The flow characteristics of wall jet with respect to aspect ratio (AR), step length (Xu), and Reynolds number (Re) of the shallow cavity are expressed. For higher accuracy, thir...
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| Format: | Article |
| Language: | English |
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Wiley
2015-01-01
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| Series: | The Scientific World Journal |
| Online Access: | http://dx.doi.org/10.1155/2015/926249 |
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| author | P. Maheandera Prabu K. P. Padmanaban |
| author_facet | P. Maheandera Prabu K. P. Padmanaban |
| author_sort | P. Maheandera Prabu |
| collection | DOAJ |
| description | This paper presents the detailed simulation of two-dimensional incompressible laminar wall jet flow over a shallow cavity. The flow characteristics of wall jet with respect to aspect ratio (AR), step length (Xu), and Reynolds number (Re) of the shallow cavity are expressed. For higher accuracy, third-order discretization is applied for momentum equation which is solved using QUICK scheme with SIMPLE algorithm for pressure-velocity coupling. Low Reynolds numbers 25, 50, 100, 200, 400, and 600 are assigned for simulation. Results are presented for streamline contour, velocity contour, and vorticity formation at wall and also velocity profiles are reported. The detailed study of vortex formation on shallow cavity region is presented for various AR, Xu, and Re conditions which led to key findings as Re increases and vortex formation moves from leading edge to trailing edge of the wall. Distance between vortices increases when the step length (Xu) increases. When Re increases, the maximum temperature contour distributions take place in shallow cavity region and highest convection heat transfer is obtained in heated walls. The finite volume code (FLUENT) is used for solving Navier-Stokes equations and GAMBIT for modeling and meshing. |
| format | Article |
| id | doaj-art-34313a8327dc4d21aea73ee21d1470b9 |
| institution | Kabale University |
| issn | 2356-6140 1537-744X |
| language | English |
| publishDate | 2015-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | The Scientific World Journal |
| spelling | doaj-art-34313a8327dc4d21aea73ee21d1470b92025-02-03T01:28:46ZengWileyThe Scientific World Journal2356-61401537-744X2015-01-01201510.1155/2015/926249926249Laminar Wall Jet Flow and Heat Transfer over a Shallow CavityP. Maheandera Prabu0K. P. Padmanaban1Department of Mechanical Engineering, SBM College of Engineering & Technology, Dindigul, Tamil Nadu 624 005, IndiaDepartment of Mechanical Engineering, SBM College of Engineering & Technology, Dindigul, Tamil Nadu 624 005, IndiaThis paper presents the detailed simulation of two-dimensional incompressible laminar wall jet flow over a shallow cavity. The flow characteristics of wall jet with respect to aspect ratio (AR), step length (Xu), and Reynolds number (Re) of the shallow cavity are expressed. For higher accuracy, third-order discretization is applied for momentum equation which is solved using QUICK scheme with SIMPLE algorithm for pressure-velocity coupling. Low Reynolds numbers 25, 50, 100, 200, 400, and 600 are assigned for simulation. Results are presented for streamline contour, velocity contour, and vorticity formation at wall and also velocity profiles are reported. The detailed study of vortex formation on shallow cavity region is presented for various AR, Xu, and Re conditions which led to key findings as Re increases and vortex formation moves from leading edge to trailing edge of the wall. Distance between vortices increases when the step length (Xu) increases. When Re increases, the maximum temperature contour distributions take place in shallow cavity region and highest convection heat transfer is obtained in heated walls. The finite volume code (FLUENT) is used for solving Navier-Stokes equations and GAMBIT for modeling and meshing.http://dx.doi.org/10.1155/2015/926249 |
| spellingShingle | P. Maheandera Prabu K. P. Padmanaban Laminar Wall Jet Flow and Heat Transfer over a Shallow Cavity The Scientific World Journal |
| title | Laminar Wall Jet Flow and Heat Transfer over a Shallow Cavity |
| title_full | Laminar Wall Jet Flow and Heat Transfer over a Shallow Cavity |
| title_fullStr | Laminar Wall Jet Flow and Heat Transfer over a Shallow Cavity |
| title_full_unstemmed | Laminar Wall Jet Flow and Heat Transfer over a Shallow Cavity |
| title_short | Laminar Wall Jet Flow and Heat Transfer over a Shallow Cavity |
| title_sort | laminar wall jet flow and heat transfer over a shallow cavity |
| url | http://dx.doi.org/10.1155/2015/926249 |
| work_keys_str_mv | AT pmaheanderaprabu laminarwalljetflowandheattransferoverashallowcavity AT kppadmanaban laminarwalljetflowandheattransferoverashallowcavity |