Wave-making resistance

Wave-making resistance or wave resistance is a form of drag that affects any object moving on a surface of a fluid, such as boats and ships moving on the surface of water, and reflects the energy required to push the water out of the way of that body. For example, the hull of a moving watercraft creates waves (a wake) which carry energy away and resist the motion of the watercraft. Wave resistance is only one of the components of the total resistance or drag experienced by a body moving on a surface of a fluid, other being viscous drag and pressure drag.

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