This lesson covers the concept of unsteady aerodynamics and its application in aeroelastic calculations. It explains the seven quantities needed in aerodynamics, including density, pressure, velocity components, temperature, and viscosity. The lesson also discusses the seven equations required to solve these quantities, including the continuity equation, momentum equations, energy equation, and the equation of state. The instructor further explains the concept of potential flow and how it can be simplified to linearized potential flow. The lesson also introduces the concept of irrotational flow and defines terms such as circulation and the Kelvin theorem. For instance, the lesson explains how the Gauss theorem is used in formulating the equations of aerodynamics.

- Unsteady aerodynamics is a crucial concept in aeroelastic calculations.
- Seven quantities are needed in aerodynamics, including density, pressure, velocity components, temperature, and viscosity.
- Seven equations are required to solve these quantities, including the continuity equation, momentum equations, energy equation, and the equation of state.
- The concept of potential flow can be simplified to linearized potential flow.
- The concept of irrotational flow is introduced, and terms such as circulation and the Kelvin theorem are defined.

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