Table 7.

The values of Re1/2Nu and Ehtr for the variations of ϕ1,ϕ2, ϕ3 and ϕ4 at ξ=1.0

Volume fraction of nanoparticles (5%)Re1/2NuEhtr
Ag(ϕ1)\ShapeSphereBrickCylinderPlateletsBladeSphereBrickCylinderPlateletsBlade
0.000.408860.408860.408860.408860.40886
0.010.416700.420280.426440.430540.445181.922.794.305.308.88
0.020.420520.427390.439150.446870.474672.854.537.419.3016.10
0.030.420710.430560.447290.458390.497712.905.319.3412.1121.73
0.040.417740.430250.451510.465350.514572.175.2310.4313.8225.85
0.050.411910.426780.451740.468080.525720.754.3810.4914.4828.58
Au(ϕ2)Re1/2NuEhtr
0.010.440820.444410.450650.454800.469617.828.6910.2211.2414.86
0.020.463300.470410.482370.490310.5188413.3115.0517.9819.9226.90
0.030.479220.489550.506810.518420.5594117.2119.7423.9626.8036.82
0.040.490320.503540.525940.540740.5931019.9223.1628.6332.2645.06
0.050.497480.513660.540610.558530.6211621.6725.6332.2236.6151.92
Cu(ϕ3)Re1/2NuEhtr (in %)
0.010.420990.424610.430880.435040.449942.973.855.396.4010.05
0.020.430960.438090.450240.458310.487125.407.1510.1212.0919.14
0.030.439050.449550.467270.479030.520777.389.9514.2917.1627.37
0.040.445600.459280.482400.497500.551408.9912.3317.9921.6834.86
0.050.450830.467410.495610.514120.5792810.2714.3221.2225.7441.68
TiO2(ϕ4)Re1/2NuEhtr
0.010.408700.411710.416890.420320.43275−0.040.71.962.805.84
0.020.408100.414070.424260.430930.45515−0.191.273.775.4011.32
0.030.407040.415840.430840.440740.47626−0.451.715.387.8016.48
0.040.405490.417060.436700.449690.49591−0.822.006.819.9921.29
0.050.403510.417760.441930.457850.51446−1.312.188.0911.9825.83

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