OICC Press International Nano Letters 2228-5326 3 1 (December 2013) 2013 05 15 Nanoparticle analysis for blood flow of Prandtl fluid model with stenosis 10.1186/2228-5326-3-35 EN Sohail Nadeem Department of Mathematics, Quaid-i-Azam University, 45320, Islamabad, 44000, PK Shagufta Ijaz Department of Mathematics, Quaid-i-Azam University, 45320, Islamabad, 44000, PK Noreen Sher Akbar DBS&H, CEME, National University of Sciences and Technology, Islamabad, 44000 Journal Article 2013 05 15 Abstract In this article, we have discussed blood flow in the nano-Prandtl fluid flow analysis in tapered stenosed arteries. The occurrence of nanoparticle fraction and heat transfer was found. Gravitational effects were also considered because the tube was taken vertically upward. Homotopy perturbation method was used to find the analytical solution of coupled nonlinear differential equations. Physical features have been discussed through graphs of concentration profile σ , velocity profile w , resistance impedance λ , temperature profile θ , wall shear stress S r z , wall shear stress at the stenosis throat τ s , and the stream lines.