2D Temperature Analysis of Energy and Exergy Characteristics of Laminar Steady Flow across a Square Cylinder under Strong Blockage

摘要: Energy and exergy characteristics of a square cylinder (SC) in confined flow are investigated computationally by numerically handling the steady-state continuity, Navier-Stokes energy equations Reynolds number range Re = 10–50, where blockage ratio (β B/H) is kept constant at high level β 0.8. Computations indicated for upstream region that, mean non-dimensional streamwise (u/Uo) spanwise (v/Uo) velocities attain values u/Uo 0.840®0.879 v/Uo 0.236®0.386 (Re 10®50) on front-surface SC, implying that have stronger impact momentum activity. It determined flows with interact SC developing thinner thermal boundary layers greater temperature gradients, which promotes entropy generation as well. The strict guidance throat, not only resulted fully developed character, but also imposed additional cooling; such analysis pointed out drop duct wall (y 0.025 m) (ζ) from ζ 0.387®0.926 xth 0 mm to 0.002®0.266 40 mm. In downstream region, disturbances evaluated be most inspectable vortex driven show decrease trends direction. corresponding domain, destruction grow direction (xds 0®10 mm). Besides, asymmetric distributions well were recorded due comprehensive mixing caused system.