The study evaluates the nanofluid using finite element analysis with base fluid (water) and seeding particles (Aluminum oxide). This is placed over a convergence channel consisting of varying aspect ratio that are evaluated quantitatively to enhance the heat transfer properties of the nanofluid.We have considered frictional loss characteristics that increases the flow of the fluid with Reynolds numbers varying from 100-2000 is compared.A baseline modeling is established using the methodology analysis for the fluid flow over a rectangular chamber that is designed in the form of a square duct of ratio 1:1. The analysis is carried out over the heat transfer and flow rate characteristics of the nanofluid that converges into the square ducts with different aspect ratio, is analyzed.The concentration of the nano fluid is maintained at the constant rate, which is used for studying the flow rate influence over different aspect ratios. The thermal and flow characteristics is analyzed in such situation and validated against other literatures to check the efficiency in the converging rectangular oxygen free copper channel.The simulation results shows an increase in temperature on the duct out and drop in temperature on the inlet walls of the tube.The pressure changes and shear stress along the walls of the chamber is not much noticed and it is constant throughout the entire chamber.
 Shah, R.K., Laminar flow forced convection in ducts: a source book for compact heat exchanger analytical data, Academic press, London, A.L., 2014.
 Park, K.W. and Pak, H.Y., Numerical Heat Transfer: Part A: Applications, 41(1), 19 (2002).
 Yang, Y., Zhang, Z.G., Grulke, E.A., Anderson, W.B. and Wu, G., International Journal of Heat and Mass Transfer, 48(6), 1107 (2005).
 Akbarinia, A. and Behzadmehr, A., Applied Thermal Engineer-ing, 27(8), 1327 (2007).
 Vajjha, R.S. and Das, D.K., International Journal of Heat and Mass Transfer, 52(21), 4675 (2009).
 Bianco, V., Chiacchio, F., Manca, O. and Nardini, S., Applied Thermal Engineering, 29(17), 3632 (2009).
 Nassan, T.H., Heris, S.Z. and Noie, S.H., International Com-munications in Heat and Mass Transfer, 37(7), 924 (2010).
 Huminic, G. and Huminic, A., Experimental Thermal and Fluid Science, 35(3), 550 (2011).
 Paul, G., Chopkar, M., Manna, I. and Das, P.K., Renewable and Sustainable Energy Reviews, 14(7), 1913 (2010).
Mohammed, H.A., Al-Aswadi, A.A., Shuaib, N.H. and Saidur, R., Renewable and Sustainable Energy Reviews, 15(6), 2921 (2011).
Raveshi, M.R., Keshavarz, A., Mojarrad, M.S. and Amiri, S., Experimental Thermal and Fluid Science, 44, 805 (2013).
Peyghambarzadeh, S.M., Hashemabadi, S.H., Jamnani, M.S. and Hoseini, S.M., Applied Thermal Engineering, 31(10), 1833 (2011).
Kamyar, A., Saidur, R. and Hasanuzzaman, M., International Journal of Heat and Mass Transfer, 55(15), 4104 (2012).
Huminic, G. and Huminic, A., Renewable and Sustainable Energy Reviews, 16(8), 5625 (2012).
Suresh, S., Venkitaraj, K.P., Selvakumar, P. and Chandrasekar, M., Experimental Thermal and Fluid Science, 39, 37 (2012).
Mohammed, H.A., Hasan, H.A. and Wahid, M.A., Internation-al Communications in Heat and Mass Transfer, 40, 36 (2013).