Numerical Study of the Effects of Roughness Coupled with Inclination on a Turbulent Flow around an Obstacle

In this study, we simulate the cooling of a microprocessor by thermal convection in three different shapes: square, trapezoidal, and triangular shape. The latter is improved variety types roughness, including square roughness Type 1, 2, 3. microprocessors are kept at constant temperature, air flow constant, geometry fixed. physical phenomenon simulated ANSYS software. numerical results reported study cover ranges obstacle’s angle inclination, 0°≤θ≤45°, (square obstacles, θ=0°, trapezoidal 0°<θ<45°, θ=45°) Reynolds number, 2500≤Re≤10,000. findings relate to streamlines, dynamic pressure (max), mean velocity, temperature field, Nusselt number (Nu/Nu0) profiles, local coefficient friction (Cf/f0), (f/f0) velocity field with fluid roughness. aim show interaction between parameter obstacle geometry. case obstacle, contact cold significant downstream which gives us good cooling, has an important value because agitation increases convective heat transfer, low uniform.