turbulent diffusion वाक्य
उदाहरण वाक्य
मोबाइल
- Turbulent diffusion is usually described by a turbulent diffusion coefficient.
- Turbulent diffusion is usually described by a turbulent diffusion coefficient.
- The second deviation from the explicit treatment is related to the turbulent diffusion in vertical direction.
- To avoid this, vertical turbulent diffusion is treated using the second order Crank Nicolson method.
- These include work on the classification of estuaries, estimates of turbulent diffusion, and studies of the impact of volcanoes on climate.
- This is because these methods involve ideal flow, which cannot simulate the conditions of turbulent flow necessary for developing turbulent diffusion models.
- The turbulent diffusion constant D = v \ delta is then independent of the scale length and is approximately equal to the Bohm value.
- Substituting into the first continuity equation and ignoring reactions, sources, and molecular diffusion results in the following differential equation considering only the turbulent diffusion approximation in eddy diffusion:
- With the advancement in computer-aided modeling and programming, scientists have been able to simulate turbulent flow in order to better understand turbulent diffusion in the atmosphere and in fluids.
- As technology and computer abilities are rapidly expanding, these methods will also improve greatly, and will more than likely be at the forefront of future research on modeling turbulent diffusion.
- He joined the British Meteorological Office in 1939 and was asked to study turbulent diffusion in the atmospheric boundary layer ( the first few hundred metres of atmosphere above the earth's surface ).
- In real fluids, however, molecular and turbulent diffusion always cause internal heating / cooling even in absence of external heating / cooling, as long as the temperature of the fluid considered is non-uniform.
- Thus, this approach is used to evaluate the position and velocity of particles relative to their neighbors and environment, and approximates the random concentrations and velocities associated with turbulent diffusion in the statistics of their motion.
- Under various external conditions such as directional flow speed ( wind ) and environmental conditions, the variances and diffusivities of turbulent diffusion are measured and used to calculate a good estimate of concentrations at a specific point from a source.
- This turbulent diffusion coefficient is defined in a phenomenological sense, by analogy with the molecular diffusivities, but it does not have a true physical meaning, being dependent on the flow conditions, and not a property of the fluid itself.
- Therefore, because of internal diabatic heating / cooling by molecular / turbulent diffusion, the overall heating experienced by a stratified fluid always occurs at greater pressure than the total cooling, even if the external cooling / heating occur at the same pressure.
- As is well-known, molecular and turbulent diffusion tends to relax the system toward thermodynamic equilibrium, i . e ., toward an isothermal state, which for a statically stable fluid, will warm up the fluid at high pressure, and cool it down at low pressure.
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