Numerical Simulation and Sensitivity Analysis Using RSM on Natural Convective Heat Exchanger Containing Hybrid Nanofluids

Table 8

Regression coefficients for Nu_av that are predicted based on RSM.

Coefficients	d0	d1	d2	d3	d11	d22	d33	d12	d13	d23
Values	12.73	5.41	−0.9062	1.50	−3.43	0.0767	−1.16	−0.9929	0.8413	0.4937
p-values	—	<0.0001	0.0019	<0.0001	<0.0001	0.8566	0.0188	0.0022	0.0060	0.0691

Values indicated in the bold font denote insignificant terms ().