Figure 3.

Velocity vectors (on the left, →0.002) and isotherms (on the right) for Al2O3-water nanofluid at different Rayleigh numbers. φ = 0.01 (a) Ra = 8 × 105, (b) Ra = 1.4 × 106, (c) Ra = 1.9 × 106, (d) Ra = 2.6 × 106, (e) Ra = 3.3 × 106.

He et al. Nanoscale Research Letters 2011 6:184   doi:10.1186/1556-276X-6-184
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