Investigation of Mixed Convection in a Cylindrical Lid Driven Cavity Filled with Water-Cu Nanofluid
The present numerical research studies the effect of nano-materials in a lid-driven cylindrical cavity with rotation of circumferential top wall. The heat is transferred from two lateral walls to the domain by constant temperature conditions while other walls are kept isolated. The non-dimensional e...
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MDPI AG
2019-10-01
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| Series: | Inventions |
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| Online Access: | https://www.mdpi.com/2411-5134/4/4/60 |
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| author | Amirreza Niazmand Jalal Fathi Sola Farhad Alinejad Foad Rahimi Dehgolan |
| author_facet | Amirreza Niazmand Jalal Fathi Sola Farhad Alinejad Foad Rahimi Dehgolan |
| author_sort | Amirreza Niazmand |
| collection | DOAJ |
| description | The present numerical research studies the effect of nano-materials in a lid-driven cylindrical cavity with rotation of circumferential top wall. The heat is transferred from two lateral walls to the domain by constant temperature conditions while other walls are kept isolated. The non-dimensional equations are solved by Finite Volume Method (FVM) and SIMPLEC method. The effect of Reynolds (Re = 100, 400, 1000), Ryleigh (Ra = 10<sup>4</sup>, 10<sup>5</sup>, 10<sup>6</sup>) numbers are studied. In addition, the effect of concentration of nano materials (<inline-formula> <math display="inline"> <semantics> <mi>ϕ</mi> </semantics> </math> </inline-formula> = 0%, 1%, 5%), the Height Ratio (HR = 1, 0.5, 2) on Nusselt number, isotherm lines and streamlines are studied. The results show that Reynolds number also can change the effect of nano particles on the heat transfer rate. It is observed that the height ratio increase can improve the Nusselt number since the number and the size of vortices inside the cavity changes. In addition, increase of Ra number can change the flow structure inside the cavity which can help in increasing of Nusselt number. |
| first_indexed | 2024-12-12T07:05:56Z |
| format | Article |
| id | doaj.art-c652f1d142d24e9d8d3aacdc48accac5 |
| institution | Directory Open Access Journal |
| issn | 2411-5134 |
| language | English |
| last_indexed | 2024-12-12T07:05:56Z |
| publishDate | 2019-10-01 |
| publisher | MDPI AG |
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| spelling | doaj.art-c652f1d142d24e9d8d3aacdc48accac52022-12-22T00:33:45ZengMDPI AGInventions2411-51342019-10-01446010.3390/inventions4040060inventions4040060Investigation of Mixed Convection in a Cylindrical Lid Driven Cavity Filled with Water-Cu NanofluidAmirreza Niazmand0Jalal Fathi Sola1Farhad Alinejad2Foad Rahimi Dehgolan3Department of Mechanical and Aerospace Engineering, University of Texas at Arlington, Arlington, TX 76019, USADepartment of Mechanical and Aerospace Engineering, University of Texas at Arlington, Arlington, TX 76019, USADepartment of Mechanical and Aerospace Engineering, Politecnico di Torino, 10129 Turin, ItalyDepartment of Mechanical Engineering, University of Windosr, Windsor, ON N9B 3P4, CanadaThe present numerical research studies the effect of nano-materials in a lid-driven cylindrical cavity with rotation of circumferential top wall. The heat is transferred from two lateral walls to the domain by constant temperature conditions while other walls are kept isolated. The non-dimensional equations are solved by Finite Volume Method (FVM) and SIMPLEC method. The effect of Reynolds (Re = 100, 400, 1000), Ryleigh (Ra = 10<sup>4</sup>, 10<sup>5</sup>, 10<sup>6</sup>) numbers are studied. In addition, the effect of concentration of nano materials (<inline-formula> <math display="inline"> <semantics> <mi>ϕ</mi> </semantics> </math> </inline-formula> = 0%, 1%, 5%), the Height Ratio (HR = 1, 0.5, 2) on Nusselt number, isotherm lines and streamlines are studied. The results show that Reynolds number also can change the effect of nano particles on the heat transfer rate. It is observed that the height ratio increase can improve the Nusselt number since the number and the size of vortices inside the cavity changes. In addition, increase of Ra number can change the flow structure inside the cavity which can help in increasing of Nusselt number.https://www.mdpi.com/2411-5134/4/4/60nanofluidmixed convectionmixercylindrical cavitynumerical simulationfinite volume |
| spellingShingle | Amirreza Niazmand Jalal Fathi Sola Farhad Alinejad Foad Rahimi Dehgolan Investigation of Mixed Convection in a Cylindrical Lid Driven Cavity Filled with Water-Cu Nanofluid Inventions nanofluid mixed convection mixer cylindrical cavity numerical simulation finite volume |
| title | Investigation of Mixed Convection in a Cylindrical Lid Driven Cavity Filled with Water-Cu Nanofluid |
| title_full | Investigation of Mixed Convection in a Cylindrical Lid Driven Cavity Filled with Water-Cu Nanofluid |
| title_fullStr | Investigation of Mixed Convection in a Cylindrical Lid Driven Cavity Filled with Water-Cu Nanofluid |
| title_full_unstemmed | Investigation of Mixed Convection in a Cylindrical Lid Driven Cavity Filled with Water-Cu Nanofluid |
| title_short | Investigation of Mixed Convection in a Cylindrical Lid Driven Cavity Filled with Water-Cu Nanofluid |
| title_sort | investigation of mixed convection in a cylindrical lid driven cavity filled with water cu nanofluid |
| topic | nanofluid mixed convection mixer cylindrical cavity numerical simulation finite volume |
| url | https://www.mdpi.com/2411-5134/4/4/60 |
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