This course offers an introduction to fluid dynamics. It answers the question "what are fluids?" by examining the physical properties of fluids (versus solids and gases) and defining the many types of fluid flows.

This course looks at the five governing equations of fluid dynamics — conservation of mass (one), momentum (three) and energy (one) — which are commonly referred to as the Navier-Stokes equations. It defines the Reynolds transport and Gauss divergence theorems, as well as the required elements for accurate mathematical modeling.

In this course, we will learn about the basics of viscous laminar flows. These flows can be bounded (internal) or unbounded (external). First, we will identify some important dimensional numbers and use them to non-dimensionalize the Navier-Stokes equations. Next, we will learn about the various fluid forces acting on an object in unbounded flows and categorize them as lift and drag forces. Following this, we will understand the concept of pressure-driven internal flows as we examine the famous Couette and Poiseuille flows. Finally, we will use Ansys Fluent to simulate some practical engineering flows to gain a deeper understanding of internal and external flows.

Stress analysis is an important part of the workflow when designing components in civil, mechanical, aerospace and many other industries. In this course, we discuss the importance and applications of stress analysis. We also introduce stress in tensor format first, followed by how and why the stress tensor is transformed to principal stress and equivalent stress. Equipped with a good theoretical understanding of stress, we then demonstrate how to perform a simple stress analysis in Ansys Mechanical software and share tips and tricks to improve your productivity when using this software.

The study of mechanical interaction of structures at their surfaces is essential in many applications. An accurate understanding of stress and deformation arising from contact is critical for the design of reliable, efficient and safe products such as disc brakes, gears and tires. However, unlike the real world, bodies do not automatically interact with each other in numerical simulations. In order to model those interactions, proper contact definition between the bodies is required. In this course, we understand how contact is modeled in numerical simulations and demonstrate the use of Ansys Mechanical software in modeling contact.