In fluid dynamics, a wind wave, or wind-generated water wave, is a surface wave that occurs on the free surface of bodies of water as a result of the wind blowing over the water's surface. The contact distance in the direction of the wind is known as the fetch .

2021年11月1日 · The process, known as the Kelvin–Helmholtz instability, occurs whenever a fluid changes speed across a region of changing density. The pair calculated that for the mechanism to operate in realistic conditions, wind speeds of 6.5 m/s were needed to generate waves.

2023年9月20日 · Wind waves are higher frequency waves generated near the wind source (frequency is the number of waves that pass a point in a specific amount of time). How big wind waves get depends on three things: Wind strength.

We know that wind creates waves because on a day when the wind is not blowing the water surface is often smooth. But on a windy day there are always waves. The wind that pushes this sailboat also pushes the surface of the water and makes small waves.

The Miles-Phillips mechanism is a physical interpretation of these wind-generated surface waves. Both mechanisms are applied to gravity-capillary waves and have in common that waves are generated by a resonance phenomenon.

2021年2月15日 · Wind waves form from wind blowing on the ocean surface. The key factors influencing wave intensity include fetch, wind duration, wind strength, and proximity to wind source area.

2014年9月2日 · Waves form as the wind’s energy is transferred to the surface of water. A weak gusty wind can make ripples appear on smooth water. These ripples will dissipate quickly once the wind stops. The size of a wind-generated wave depends on the following: • The wind speed. The stronger the winds, the larger the force and, thus, the bigger the wave.

We perform a number of high-resolution direct numerical simulation (DNS) of turbulent wind over initially calm water to capture the multistage generation of water waves. Detailed analyses are conducted to evaluate the Phillips theory in both physical space and wavenumber space.

More practically, statistical wave models describe how waves evolve and propagate across the ocean surface in various environmental conditions— such as low and high winds— and quantify how they influence the ocean’s circulation and the transport of …

how does the wind generate waves? how do waves grow from a calm surface to a fully developed sea? what factors affect the characteristics of the wind-waves? how is energy being transferred from the atmosphere to the ocean? can we predict the waves if we know the wind?