Related Experiment Video
Updated: Mar 25, 2026

08:54
Measurements of Waves in a Wind-wave Tank Under Steady and Time-varying Wind Forcing
Published on: February 13, 2018
9.2K
Expressing oceanic turbulence parameters by atmospheric turbulence structure constant
Applied Optics
|February 25, 2016
Summary
This study introduces an equivalent structure constant for oceanic turbulence, simplifying calculations by relating it to atmospheric turbulence parameters. This facilitates the application of existing atmospheric turbulence solutions to oceanic environments.
Area of Science:
- Fluid dynamics
- Optical physics
- Oceanography
Background:
- Oceanic turbulence parameters differ from atmospheric turbulence parameters.
- Formulations for physical entities like scintillation index exist for atmospheric turbulence.
- Existing atmospheric turbulence solutions are not directly applicable to oceanic environments.
Purpose of the Study:
- To establish a relationship between oceanic and atmospheric turbulence parameters.
- To simplify the analysis of optical phenomena in oceanic turbulence.
- To enable the use of established atmospheric turbulence models for oceanic studies.
Main Methods:
- Equating spherical wave scintillation index solutions for oceanic and atmospheric turbulence.
- Defining an equivalent structure constant for oceanic turbulence.
- Relating oceanic turbulence parameters to the equivalent structure constant.
Main Results:
- Oceanic turbulence parameters are expressed using an equivalent structure constant.
- This equivalent constant bridges the gap between oceanic and atmospheric turbulence models.
- The derived relationship simplifies the calculation of physical entities in oceanic media.
Conclusions:
- An equivalent structure constant for oceanic turbulence has been successfully defined.
- This provides a pathway to leverage existing atmospheric turbulence research for oceanic applications.
- The findings will aid in the study of light propagation and related phenomena in the ocean.
Related Concept Videos
Variation of Atmospheric Pressure
4.4K
Change in atmospheric pressure with height is particularly interesting. The decrease in atmospheric pressure with increasing altitude is due to the decreasing gravitational force per unit area as we move away from the surface of the earth.
Assuming the air temperature is constant at a given altitude and that the ideal gas law of thermodynamics describes the atmosphere to a good approximation, one can find the variation of atmospheric pressure with height.
Let p(y) be the atmospheric pressure at...
Assuming the air temperature is constant at a given altitude and that the ideal gas law of thermodynamics describes the atmosphere to a good approximation, one can find the variation of atmospheric pressure with height.
Let p(y) be the atmospheric pressure at...
4.4K
Dimensionless Groups in Fluid Mechanics
902
Dimensionless groups in fluid mechanics provide simplified ratios that help analyze fluid behavior without relying on specific units. The Reynolds number (Re), which represents the ratio of inertial to viscous forces, distinguishes between laminar and turbulent flows, making it essential in the design of pipelines and aerodynamic surfaces. The Froude number (Fr), the ratio of inertial to gravitational forces, is particularly useful in predicting wave formation and hydraulic jumps in...
902
Turbulent Flow
865
Turbulent flow is characterized by unpredictable fluctuations in velocity and pressure, which result in a chaotic fluid movement distinct from the orderly patterns of laminar flow. While laminar flow is governed by smooth, parallel layers with minimal mixing, turbulent flow exhibits highly irregular, three-dimensional patterns. This behavior arises due to instabilities in the fluid's velocity profile, and amplifies as the flow velocity increases. Minor disturbances, known as turbulent...
865
Laminar and Turbulent Flow
11.7K
Fluid dynamics is the study of fluids in motion. Velocity vectors are often used to illustrate fluid motion in applications like meteorology. For example, wind—the fluid motion of air in the atmosphere—can be represented by vectors indicating the speed and direction of the wind at any given point on a map. Another method for representing fluid motion is a streamline. A streamline represents the path of a small volume of fluid as it flows. When the flow pattern changes with time, the...
11.7K
Pressure Variation in a Fluid at Rest
985
In a fluid at rest, the pressure at any point beneath the fluid surface depends solely on the depth, not on the container's shape or size. This principle, known as hydrostatic pressure, arises because, in stationary fluids, there is no acceleration, meaning the forces within the fluid balance out. Only vertical forces, caused by the weight of the fluid above, contribute to pressure changes with depth.
When measuring pressure at two different levels within the fluid, the difference in...
When measuring pressure at two different levels within the fluid, the difference in...
985
Boundary Layer Characteristics
804
When a fluid encounters a solid surface, a boundary layer forms due to the interaction between the fluid's motion and the stationary surface. This phenomenon is characterized by a thin region adjacent to the surface where viscous forces dominate, influencing the fluid's velocity profile. The development of the boundary layer begins at the leading edge of the surface and evolves as the fluid moves downstream.As the fluid flows over the surface, friction between the fluid and the wall slows down...
804

