Numerical Results — Lesson 7

Part 1: Volume Renderings and Vectors

This part of the lesson covers the process of post-processing cell center values of primary unknowns to produce useful visualizations in Ansys software. The lesson explains how to use CFD post to adjust views for optimal display of visualizations, manipulate boundaries, and create volume renderings for pressure and velocity in the flow domain. It also demonstrates how to create a plane for vector plotting and how to interpret the resulting visualizations. For instance, the lesson highlights how to identify high-pressure stagnation regions, low-velocity recirculation zones, and the impact of viscous losses on flow properties.

Part 2: Velocity Profiles and Contours

This part of the lesson covers the investigation of velocity profiles at different points along the length of an artery using Ansys CFD Post. It explains how to create planes for plotting vectors, how to visualize velocity vectors, and how to interpret the results. The lesson also discusses the creation of streamlines for a clear understanding of how fluid particles move along the artery. It further delves into the use of contours for a deeper understanding of the flow domain.

Part 3: Wall Shear and Mass Flux

This part of the lesson covers the investigation of fluid flow's impact on artery walls using wall shear contours. It explains how to select contours in the top bar, name them, and change the location and variable to 'wall'. The lesson also discusses how to adjust the number of contours and view them in the window. It further elaborates on the biological implications of wall shear, particularly in relation to plaque development. The lesson also highlights the importance of using Ansys Fluent® fluid simulation software solver postprocessor for more accurate values and how to create new wall shear contours in Ansys Fluent software. Finally, it explains how to investigate the mass flux at inlet and outlet boundary conditions.