The Efficient Engineer - Fluid Mechanics - Understanding Aerodynamic Lift 09022021

This video looks at lift, starting with how it is linked with the pressure distribution around airfoils. A few explanations of lift are considered, including the Bernoulli Principle and Newton's Third Law explanations. Other key aspects of lift are consdired such as Circulation and the Kutta condition. Also, how the lift force varies with the angle of attack of the airfoil (which explains why aerobatic aircraft use symmetrical airfoils), and how stalling can result in a dangerous loss of lift

The Efficient Engineer - Fluid Mechanics - Understanding Aerodynamic Drag 12012021

Drag and lift are the forces which act on a body moving through a fluid, or on a stationary object in a flowing fluid. We call these aerodynamic forces (if the fluid is a gas) or hydrodynamic forces (if the fluid is a liquid). This video focuses on drag force and the two main causes of drag - pressure distribution around the object, and shear stresses acting on the object, which are most significant for streamlined bodies

The Efficient Engineer - Fluid-Mechanics - Understanding Bernoulli's equation 06102020

Bernoulli's equation is a simple but incredibly important equation in physics and engineering that can help us understand a lot about the flow of fluids in the world around us. It essentially describes the relationship between the pressure, velocity and elevation of a flowing fluid. This video looks at how the equation can be used, and explores a range of different applications

The Efficient Engineer - Fluid Mechanics - Understanding Laminar and Turbulent Flow 08092020

There are two main types of fluid flow: laminar flow, in which the fluid flows smoothly in layers; and turbulent flow, which is characterised by chaotic motion and large amounts of mixing. The video explores the differences between these two flow regimes. The video covers how Reynolds number can be used to predict which flow regime will occur for a specific set of flow conditions. And it looks at laminar and turbulent flows in pipes, and how the flow regime affects the pressure drop in a pipe.

The Efficient Engineer - Fluid Mechanics - Understanding Viscosity, 09032021

This video looks at Viscosity, a key property in fluid mechanics that describes how easily a fluid will flow.