Table 10 Properties of Al 2 O 3 + H 2 O nanofluid for different particle diameters
From: Natural convection heat transfer of nanofluids along a vertical plate embedded in porous medium
Properties | Particle diameters d p (nm) | ||||||
|---|---|---|---|---|---|---|---|
10 | 25 | 40 | 55 | 70 | 115 | 130 | |
μnf(10−3) | 0.9198 | 0.8553 | 0.831 | 0.8171 | 0.8077 | 0.7908 | 0.7871 |
k nf | 0.8768 | 0.8007 | 0.7712 | 0.7542 | 0.7427 | 0.7222 | 0.7177 |
k eff | 1.2167 | 1.1112 | 1.0703 | 1.0467 | 1.0307 | 1.0023 | 0.9961 |
αeff (10−6) | 0.261 | 0.2384 | 0.2296 | 0.2245 | 0.2211 | 0.215 | 0.2137 |
Preff | 3.1656 | 3.2229 | 3.2511 | 3.2687 | 3.2812 | 3.304 | 3.309 |
RaKeff | 101.6243 | 119.6707 | 127.8621 | 132.9777 | 136.6173 | 143.4837 | 145.0528 |