Numerical Investigation on Thermal Performance of Duplex Nanocoolant Jets in Drilling of Ti-6Al-4V Alloy
In the current industry, coolants are widely used in numerous operations for the purpose of cooling and heat transfer. These operations include all kinds of heat sinks for electronic devices and manufacturing processes such as milling, drilling, turning, and CNC machining. The thermophysical propert...
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MDPI AG
2022-11-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/12/22/11715 |
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| author | R. Mohan Shardul Shrikhande Vedant Joshi R. Harish |
| author_facet | R. Mohan Shardul Shrikhande Vedant Joshi R. Harish |
| author_sort | R. Mohan |
| collection | DOAJ |
| description | In the current industry, coolants are widely used in numerous operations for the purpose of cooling and heat transfer. These operations include all kinds of heat sinks for electronic devices and manufacturing processes such as milling, drilling, turning, and CNC machining. The thermophysical properties of coolants play a vital role in determining the effectiveness of heat transfer and help prevent the components from wear and tear caused by extremely high temperatures. The computational domain consists of a drill bit and rectangular workpiece, and hybrid nanocoolants are sprayed from duplex nozzles. The nanocoolant heat transfer and flow characteristics of the drill bit–workpiece interface were analysed using the large eddy simulation (LES) turbulence model. The workpiece is made of Ti-6Al-4V alloy maintained at a temperature of 1073.15 K. The coolant used is a mineral oil into which different nanoparticles of Al<sub>2</sub>O<sub>3</sub>, TiO<sub>2</sub>, Cu, MWCNT, and SWCNT are dispersed by varying the volume concentration. The variations in temperature, Nusselt number, and wall heat transfer coefficient, with respect to the volume fraction of nanoparticles and the Reynolds number, were investigated. It was concluded that Cu–Al<sub>2</sub>O<sub>3</sub> nanoparticles dispersed in mineral oil depicted the most favourable heat transfer. |
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| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-09T18:29:08Z |
| publishDate | 2022-11-01 |
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| spelling | doaj.art-3389236994e34be9ba732983670decce2023-11-24T07:39:44ZengMDPI AGApplied Sciences2076-34172022-11-0112221171510.3390/app122211715Numerical Investigation on Thermal Performance of Duplex Nanocoolant Jets in Drilling of Ti-6Al-4V AlloyR. Mohan0Shardul Shrikhande1Vedant Joshi2R. Harish3School of Mechanical Engineering, Vellore Institute of Technology, Chennai 600127, Tamil Nadu, IndiaSchool of Mechanical Engineering, Vellore Institute of Technology, Chennai 600127, Tamil Nadu, IndiaSchool of Mechanical Engineering, Vellore Institute of Technology, Chennai 600127, Tamil Nadu, IndiaSchool of Mechanical Engineering, Vellore Institute of Technology, Chennai 600127, Tamil Nadu, IndiaIn the current industry, coolants are widely used in numerous operations for the purpose of cooling and heat transfer. These operations include all kinds of heat sinks for electronic devices and manufacturing processes such as milling, drilling, turning, and CNC machining. The thermophysical properties of coolants play a vital role in determining the effectiveness of heat transfer and help prevent the components from wear and tear caused by extremely high temperatures. The computational domain consists of a drill bit and rectangular workpiece, and hybrid nanocoolants are sprayed from duplex nozzles. The nanocoolant heat transfer and flow characteristics of the drill bit–workpiece interface were analysed using the large eddy simulation (LES) turbulence model. The workpiece is made of Ti-6Al-4V alloy maintained at a temperature of 1073.15 K. The coolant used is a mineral oil into which different nanoparticles of Al<sub>2</sub>O<sub>3</sub>, TiO<sub>2</sub>, Cu, MWCNT, and SWCNT are dispersed by varying the volume concentration. The variations in temperature, Nusselt number, and wall heat transfer coefficient, with respect to the volume fraction of nanoparticles and the Reynolds number, were investigated. It was concluded that Cu–Al<sub>2</sub>O<sub>3</sub> nanoparticles dispersed in mineral oil depicted the most favourable heat transfer.https://www.mdpi.com/2076-3417/12/22/11715drilling operationhybrid nanocoolantsduplex jetsTi-6Al-4V alloycutting temperaturecutting fluid velocity |
| spellingShingle | R. Mohan Shardul Shrikhande Vedant Joshi R. Harish Numerical Investigation on Thermal Performance of Duplex Nanocoolant Jets in Drilling of Ti-6Al-4V Alloy Applied Sciences drilling operation hybrid nanocoolants duplex jets Ti-6Al-4V alloy cutting temperature cutting fluid velocity |
| title | Numerical Investigation on Thermal Performance of Duplex Nanocoolant Jets in Drilling of Ti-6Al-4V Alloy |
| title_full | Numerical Investigation on Thermal Performance of Duplex Nanocoolant Jets in Drilling of Ti-6Al-4V Alloy |
| title_fullStr | Numerical Investigation on Thermal Performance of Duplex Nanocoolant Jets in Drilling of Ti-6Al-4V Alloy |
| title_full_unstemmed | Numerical Investigation on Thermal Performance of Duplex Nanocoolant Jets in Drilling of Ti-6Al-4V Alloy |
| title_short | Numerical Investigation on Thermal Performance of Duplex Nanocoolant Jets in Drilling of Ti-6Al-4V Alloy |
| title_sort | numerical investigation on thermal performance of duplex nanocoolant jets in drilling of ti 6al 4v alloy |
| topic | drilling operation hybrid nanocoolants duplex jets Ti-6Al-4V alloy cutting temperature cutting fluid velocity |
| url | https://www.mdpi.com/2076-3417/12/22/11715 |
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