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Table 2 Comparison of numerical value of f ' (1), for various values of stretching/shrinnking parameter λ and divergent/convergent parameter α, when Re = 50 and φ = 0

From: Roles of nanoparticles and heat generation/absorption on MHD flow of Ag–H2O nanofluid via porous stretching/shrinking convergent/divergent channel

λαTurkyilmazoglu [2]Dogonchi and Ganji [3]Present result
f ' (1)θ ' (1)f ' (1)θ ' (1)f ' (1)θ ' (1)
− 2− 5− 5.1309216890.03157845854− 5.13092229260.0315761821− 5.13093186710.0315752477
− 1− 5− 4.6521839820.03734696604− 4.65215913540.0373226368− 4.65215928920.0373210205
0− 5− 2.8339154130.04214811723− 2.83395143300.0421517243− 2.83384187520.0421520009
2− 53.6543050330.050525786173.66971118530.05024231543.56970793490.0502430863
− 15− 3.5080901020.03475109986− 3.50810316670.0347758169− 3.50806812680.0347755158
05− 1.1093605330.03999321083− 1.10932652660.0399820121− 1.10926178370.0399841412
1500.0464012709900.046401510600.0464037895