21. Velocity Potential Derivation
The chapter delves into the derivation and understanding of the velocity potential for wave propagation in water bodies under specific conditions. Key equations such as the Laplace equation and Bernoulli’s equation are employed to analyze dynamic boundary conditions and obtain expressions for wave behavior. The dispersion relationship is established, detailing the relationship between wavelength, period, and water depth, emphasizing its significance in wave mechanics.
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What we have learnt
- The total velocity potential is derived from different boundary conditions and dynamic principles.
- The celerity of the wave relates to the wave mechanics fundamentals such as wavelength and period.
- The dispersion relationship connects various wave parameters and water depth, critical for understanding wave behavior.
Key Concepts
- -- Velocity Potential
- A scalar function whose gradient gives the velocity of fluid flow in a flowing body, particularly important in wave mechanics.
- -- Celerity
- The speed at which a wave travels in a given medium, determined in this context by the wavelength and time period of the wave.
- -- Dispersion Relationship
- The mathematical relationship that describes how the wave speed varies with wavelength and water depth, crucial for deep understanding of wave dynamics.
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