Table 9. The values of Re − 1 / 2 N u... | Emerald Publishing

Table 9.

The values of ${Re}^{- 1 / 2} N u$ and ehtr for mono-, hybrid-, ternary-, and tetra-nanofluids when compared to the base fluid at $ξ = 1.0$

5% nanoparticles	${Re}^{- 1 / 2} N u$					Ehtr (in %)
Shape	Sphere	Brick	Cylinder	Platelets	Blade	Sphere	Brick	Cylinder	Platelets	Blade
$A g$	0.41191	0.42678	0.45174	0.46808	0.52572	0.75	4.38	10.49	14.48	28.58
$A u$	0.49748	0.51366	0.54061	0.55853	0.62116	21.67	25.63	32.22	36.61	51.92
$C u$	0.45083	0.46741	0.49561	0.51412	0.57928	10.27	14.32	21.22	25.74	41.68
$T i O_{2}$	0.40351	0.41776	0.44193	0.45785	0.51446	−1.31	2.18	8.09	11.98	25.83
$A g + A u$	0.42240	0.44877	0.49364	0.52464	0.63869	3.31	9.76	20.74	28.32	56.21
$A g + C u$	0.41230	0.44091	0.48998	0.52297	0.64250	0.84	7.84	19.84	27.91	57.14
$A g + T i O_{2}$	0.39676	0.42443	0.47196	0.50349	0.61797	−2.96	3.81	15.43	23.14	51.14
$A u + C u$	0.49089	0.52218	0.57660	0.61301	0.74821	20.06	27.72	41.03	49.93	83.00
$A u + T i O_{2}$	0.48511	0.51251	0.55942	0.59091	0.70424	18.65	25.35	36.82	44.53	72.24
$C u + T i O_{2}$	0.43587	0.46685	0.52024	0.55581	0.68519	6.61	14.18	27.24	35.94	67.59
$A g + A u + C u$	0.39993	0.43778	0.50565	0.55285	0.72963	−2.18	7.07	23.67	35.22	78.45
$A g + A u + T i O_{2}$	0.40937	0.44829	0.51544	0.56120	0.73590	0.12	9.64	26.07	37.26	79.99
$A g + C u + T i O_{2}$	0.39572	0.43726	0.50964	0.55858	0.73969	−3.21	6.95	24.65	36.62	80.92
$A u + C u + T i O_{2}$	0.47409	0.51966	0.59940	0.65362	0.85732	15.95	27.10	46.06	59.86	109.69
$A g + A u + C u + T i O_{2}$	0.38819	0.43867	0.52944	0.59234	0.83550	−5.06	7.29	29.49	44.88	104.35

5% nanoparticles	${Re}^{- 1 / 2} N u$					Ehtr (in %)
Shape	Sphere	Brick	Cylinder	Platelets	Blade	Sphere	Brick	Cylinder	Platelets	Blade
$A g$	0.41191	0.42678	0.45174	0.46808	0.52572	0.75	4.38	10.49	14.48	28.58
$A u$	0.49748	0.51366	0.54061	0.55853	0.62116	21.67	25.63	32.22	36.61	51.92
$C u$	0.45083	0.46741	0.49561	0.51412	0.57928	10.27	14.32	21.22	25.74	41.68
$T i O_{2}$	0.40351	0.41776	0.44193	0.45785	0.51446	−1.31	2.18	8.09	11.98	25.83
$A g + A u$	0.42240	0.44877	0.49364	0.52464	0.63869	3.31	9.76	20.74	28.32	56.21
$A g + C u$	0.41230	0.44091	0.48998	0.52297	0.64250	0.84	7.84	19.84	27.91	57.14
$A g + T i O_{2}$	0.39676	0.42443	0.47196	0.50349	0.61797	−2.96	3.81	15.43	23.14	51.14
$A u + C u$	0.49089	0.52218	0.57660	0.61301	0.74821	20.06	27.72	41.03	49.93	83.00
$A u + T i O_{2}$	0.48511	0.51251	0.55942	0.59091	0.70424	18.65	25.35	36.82	44.53	72.24
$C u + T i O_{2}$	0.43587	0.46685	0.52024	0.55581	0.68519	6.61	14.18	27.24	35.94	67.59
$A g + A u + C u$	0.39993	0.43778	0.50565	0.55285	0.72963	−2.18	7.07	23.67	35.22	78.45
$A g + A u + T i O_{2}$	0.40937	0.44829	0.51544	0.56120	0.73590	0.12	9.64	26.07	37.26	79.99
$A g + C u + T i O_{2}$	0.39572	0.43726	0.50964	0.55858	0.73969	−3.21	6.95	24.65	36.62	80.92
$A u + C u + T i O_{2}$	0.47409	0.51966	0.59940	0.65362	0.85732	15.95	27.10	46.06	59.86	109.69
$A g + A u + C u + T i O_{2}$	0.38819	0.43867	0.52944	0.59234	0.83550	−5.06	7.29	29.49	44.88	104.35