Rayleigh–Bénard instability in nanofluids: a comprehensive review
Abstract The extraordinary enhancement in heat transfer efficiency of nanofluids at extremely low volume fractions has attracted a lot of attention in identifying the governing mechanisms. The nanoscale effects, Brownian motion (random motion of particles inside the base fluid) and thermophoresis (d...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2020-11-01
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| Series: | Micro and Nano Systems Letters |
| Subjects: | |
| Online Access: | http://link.springer.com/article/10.1186/s40486-020-00123-y |
| _version_ | 1828813562025345024 |
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| author | Jyoti Ahuja Jyoti Sharma |
| author_facet | Jyoti Ahuja Jyoti Sharma |
| author_sort | Jyoti Ahuja |
| collection | DOAJ |
| description | Abstract The extraordinary enhancement in heat transfer efficiency of nanofluids at extremely low volume fractions has attracted a lot of attention in identifying the governing mechanisms. The nanoscale effects, Brownian motion (random motion of particles inside the base fluid) and thermophoresis (diffusion of particles due to temperature gradient) are found to be important slip mechanisms in nanofluids. Based on these findings, a set of partial differential equations for conservation laws for nanofluids was formed. Since then, a large number of mathematical studies on convective heat transfer in nanofluids became feasible. The present paper summarizes the studies pertaining to instability of a horizontal nanofluid layer under the impact of various parameters such as rotation, magnetic field, Hall currents and LTNE effects in both porous and non-porous medium. Initially, investigations were made using the model considering fixed initial and boundary conditions on the layer, gradually the model was revised in the light of more practical boundary conditions and recently it has been modified to get new and more interesting results. The exhaustive analysis of instability problems is presented in the paper and prospects for future research are also identified. |
| first_indexed | 2024-12-12T10:03:57Z |
| format | Article |
| id | doaj.art-17f47ba7c611488a9a82c514fee6d7fb |
| institution | Directory Open Access Journal |
| issn | 2213-9621 |
| language | English |
| last_indexed | 2024-12-12T10:03:57Z |
| publishDate | 2020-11-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Micro and Nano Systems Letters |
| spelling | doaj.art-17f47ba7c611488a9a82c514fee6d7fb2022-12-22T00:27:56ZengSpringerOpenMicro and Nano Systems Letters2213-96212020-11-018111510.1186/s40486-020-00123-yRayleigh–Bénard instability in nanofluids: a comprehensive reviewJyoti Ahuja0Jyoti Sharma1Department of Mathematics, Post Graduate Government CollegeUniversity Institute of Engineering and Technology, Panjab UniversityAbstract The extraordinary enhancement in heat transfer efficiency of nanofluids at extremely low volume fractions has attracted a lot of attention in identifying the governing mechanisms. The nanoscale effects, Brownian motion (random motion of particles inside the base fluid) and thermophoresis (diffusion of particles due to temperature gradient) are found to be important slip mechanisms in nanofluids. Based on these findings, a set of partial differential equations for conservation laws for nanofluids was formed. Since then, a large number of mathematical studies on convective heat transfer in nanofluids became feasible. The present paper summarizes the studies pertaining to instability of a horizontal nanofluid layer under the impact of various parameters such as rotation, magnetic field, Hall currents and LTNE effects in both porous and non-porous medium. Initially, investigations were made using the model considering fixed initial and boundary conditions on the layer, gradually the model was revised in the light of more practical boundary conditions and recently it has been modified to get new and more interesting results. The exhaustive analysis of instability problems is presented in the paper and prospects for future research are also identified.http://link.springer.com/article/10.1186/s40486-020-00123-yNanofluidsThermal and thermosolutal convectionRotationMagnetic fieldHall currentsLTNE effects |
| spellingShingle | Jyoti Ahuja Jyoti Sharma Rayleigh–Bénard instability in nanofluids: a comprehensive review Micro and Nano Systems Letters Nanofluids Thermal and thermosolutal convection Rotation Magnetic field Hall currents LTNE effects |
| title | Rayleigh–Bénard instability in nanofluids: a comprehensive review |
| title_full | Rayleigh–Bénard instability in nanofluids: a comprehensive review |
| title_fullStr | Rayleigh–Bénard instability in nanofluids: a comprehensive review |
| title_full_unstemmed | Rayleigh–Bénard instability in nanofluids: a comprehensive review |
| title_short | Rayleigh–Bénard instability in nanofluids: a comprehensive review |
| title_sort | rayleigh benard instability in nanofluids a comprehensive review |
| topic | Nanofluids Thermal and thermosolutal convection Rotation Magnetic field Hall currents LTNE effects |
| url | http://link.springer.com/article/10.1186/s40486-020-00123-y |
| work_keys_str_mv | AT jyotiahuja rayleighbenardinstabilityinnanofluidsacomprehensivereview AT jyotisharma rayleighbenardinstabilityinnanofluidsacomprehensivereview |