Table 3.

Average Nusselt number along bottom heated wall for different types of nanofluids and different size of the nanoparticles when $Ra={10}^5$ and $Ha=10$.

Nanofluids	ϕ	Nuav	Increase (%)	Nanofluids	ϕ	Nuav	Increase (%)
Cu-water	0.00	5.0869043	–	Cu-kerosene	0.00	5.1108449	–
	0.01	5.1279040	0.81		0.01	5.3390452	4.46
	0.05	5.3482914	5.14		0.05	5.5897890	9.37
	0.10	5.4715713	7.56		0.10	5.7623863	12.75
Co-water	0.00	5.0869043	–	Co-kerosene	0.00	5.1108449	–
	0.01	5.1255934	0.76		0.01	5.4048901	5.75
	0.05	5.3361810	4.90		0.05	5.7791370	13.08
	0.10	5.4451034	7.04		0.10	5.9494259	16.41
Al2O3-water	0.00	5.0869043	–	Al2O3-kerosene	0.00	5.1108449	–
	0.01	5.1493271	1.23		0.01	5.2676440	3.07
	0.05	5.4261935	6.67		0.05	5.5797743	9.18
	0.10	5.7008267	12.07		0.10	5.8481775	14.43
TiO2-water	0.00	5.0869043	–	TiO2-kerosene	0.00	5.1108449	–
	0.01	5.1394618	1.04		0.01	5.1601554	0.96
	0.05	5.3977902	6.11		0.05	5.4457005	6.55
	0.10	5.6101714	10.29		0.10	5.7818382	13.13
Cu-EG	0.00	5.1015913	–	Al2O3-EG	0.00	5.1015913	–
	0.01	5.1390452	0.73		0.01	5.1662068	1.27
	0.05	5.3897890	5.649		0.05	5.4683156	7.19
	0.10	5.5339510	8.47		0.10	5.8291424	14.27
Co-EG	0.00	5.1015913	–	TiO2-EG	0.00	5.1015913	–
	0.01	5.1391603	0.74		0.01	5.1564652	1.08
	0.05	5.3895143	5.64		0.05	5.4205563	6.25
	0.10	5.5662212	9.18		0.10	5.7300720	12.32