Electronics Cooling CFD Analysis (Ansys Icepak)

Syllabus:

Computational Fluid Dynamics (CFD):

Navier Stokes equations and its simplified forms, discussion on their physical meaning, basic aspects of discretisation schemes. Finite volume methods, application of finite volume methods to simple equations like one dimensional steady state conduction equation and there by demonstrating how a CFD software works, impact of grid quality and grid size on accuracy of results, solution matrix etc Stability.

Convergence and consistency, CFL condition Pressure correction techniques (Simple and simpler algorithms), compressible and incompressible solvers, detailed explanation of all types of boundary conditions and their importance in CFD analysis, discretisation techniques like upwind methods(First order and second order), Quick methods and Power law Relaxation parameters. Reynolds averaged Navier Stokes equations, K epsilon model, Spalart allmaras model, near wall flow modelling, wall functions.

Heat Transfer:

Significance of heat transfer in engineering design, Heat conduction equation, boundary conditions, thermal contact resistance Laminar free convection, effect of turbulence on free convection, external free convection flows and free convection in enclosures Significance of heat transfer coefficient, local and average convective heat transfer coefficient, heat transfer correlations in internal and external flows Mechanism of radiation heat transfer, radiation intensity, radiation properties, concept of black body, radiation shape factor, radiation shield.

ANSYS Icepak:

An Overview of Capabilities, Model building, Flexible automatic meshing, accurate thermal conductivity of PCB and packages, Fan modelling, thermal resistances, thermal networks, heat sink modelling, MRF modelling, conformal and non conformal meshing, transient simulation, parametric optimization, Import and export options (MCAD, ECAD), modelling of Natural convection, forced convection and radiation, modelling of solar radiation, CAD simplification is Ansys Workbench.