Jarad, FahdMahmood, RashidSaddique, ImranMajeed, Afraz Hussain2023-02-092025-09-182023-02-092025-09-182021Majeed, Afraz Hussain...et al. (2021). "Topological characteristics of obstacles and nonlinear rheological fluid flow in presence of insulated fins: A fluid force reduction study", Mathematical Problems in Engineering, Vol. 2021.1024-123X1563-5147https://doi.org/10.1155/2021/9199512https://hdl.handle.net/20.500.12416/13368Majeed, Afraz Hussain/0000-0002-1012-0781; Mahmood, Rashid/0000-0003-0523-2794In this work, a comprehensive study of fluid forces and thermal analysis of two-dimensional, laminar, and incompressible complex (power law, Bingham, and Herschel-Bulkley) fluid flow over a topological cross-sectional cylinder (square, hexagon, and circle) in channel have been computationally done by using finite element technique. The characteristics of nonlinear flow for varying ranges of power law index (0.4 <= n <= 1.6), Bingham number (0 <= Bn <= 50), Prandtl number (0.7 <= Pr <= 10), Reynolds number (10 <= Re <= 50), and Grashof number (1 <= Gr <= 10) have been examined. Considerable evaluation for thermal flow field in the form of dimensionless velocity profile, isotherms, drag and lift coefficients, and average Nusselt number (Nu(avg)) is done. Also, for a range of Bn, the drag forces reduction is observed for circular and hexagonal obstacles in comparison with the square cylinder. At Bn = 0 corresponding to Newtonian fluid, maximum reduction in drag force is reported.eninfo:eu-repo/semantics/openAccessArticle10.1155/2021/91995122-s2.0-85114097271