Table 2 Bearing characteristics for concave bearing surface shape with and without lubricant additives.
\(\varepsilon\) | Surface geometry | Nanofluid lubricant | Combination of the two | |||
|---|---|---|---|---|---|---|
\(\% \,W_{g}\) | \(\% \,C_{f\,g}\) | \(\% \,W_{n}\) | \(\% \,C_{f\,n}\) | \(\% \,W_{gn}\) | \(\% \,C_{f\,g\,n}\) | |
0.2 | 38.412 | − 9.253 | 16.611 | − 0.003 | 61.404 | − 9.255 |
0.3 | 38.489 | − 9.303 | 16.611 | − 0.00376 | 61.494 | − 9.307 |
0.4 | 39.647 | − 10.056 | 16.611 | − 0.0042 | 62.844 | − 10.06 |
0.5 | 41.553 | − 11.268 | 16.611 | − 0.0039 | 65.067 | − 11.271 |
0.6 | 38.403 | − 9.247 | 16.611 | − 0.00294 | 61.394 | − 9.25 |
0.7 | 43.767 | − 12.635 | 16.611 | − 0.00138 | 67.649 | − 12.636 |
0.8 | 37.2 | − 8.448 | 16.611 | − 0.00225 | 59.991 | − 8.45 |
0.9 | 37.191 | − 8.453 | 16.611 | − 0.0256 | 59.98 | − 8.519 |
TiO2 lubricant additive: ϕ = 0.005 and β = 7.77 | ||||||
