Unsteady Flows

3 Credits

This course examines the forces and flows that arise when rigid or flexible objects produce unsteadiness in a surrounding flow. The concepts of added mass and circulatory forces, hydrodynamic impulse, and vortex force are introduced. For unsteady lifting surfaces, classic theories such as Theodorsen, and von Kármán and Sears are examined. Unsteady flows produced by bluff bodies, such as vortex shedding from a cylinder, are discussed as well as unsteady flows from oscillating bodies, such as flying and swimming animals.