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Transporte vertical turbulento debido a capas de mezcla intermitente delgada en la estratosfera y otros fluidos

Science (New York, N.Y.)

|March 6, 1981

Resumen

La estabilidad flotante intensifica los efectos de la contaminación en la estratosfera y el océano, limitando la turbulencia a capas delgadas. Este estudio modela el transporte vertical utilizando una analogía de ecuación de difusión para derivar un parámetro de difusividad para estas condiciones inhomogéneas.

Área de la Ciencia:

Ciencias del medio ambiente Ciencias del medio ambiente.
La dinámica de fluidos es la dinámica de fluidos.
Química de la atmósfera química de la atmósfera

Sus antecedentes:

Los impactos de la contaminación en la estratosfera y el océano son significativos.
La estabilidad flotante en estos entornos restringe la turbulencia a capas delgadas.
Comprender el transporte vertical es crucial para predecir la distribución de los contaminantes.

Objetivo del estudio:

Para investigar los mecanismos de transporte vertical en medios estratificados como la estratosfera y el océano.
Desarrollar un método para estimar el transporte vertical influenciado por la turbulencia confinada.
Para derivar un parámetro de difusividad aplicable a condiciones altamente inhomogéneas.

Principales métodos:

Modelado de la turbulencia en medios estratificados.
Utilizando una analogía con la ecuación de difusión de diferencias finitas.
Cálculo de un parámetro de difusividad para la turbulencia no homogénea.

Principales resultados:

La turbulencia se limita a capas delgadas debido a la estabilidad de la flotabilidad.
Se derivó con éxito un parámetro de difusividad utilizando una analogía de ecuación de difusión.
El parámetro derivado es válido para condiciones turbulentas extremadamente inhomogéneas.

Conclusiones:

La estabilidad de la flotabilidad tiene un impacto significativo en la turbulencia y el transporte vertical en la estratosfera y el océano.
La analogía de la ecuación de difusión de diferencias finitas proporciona un método robusto para estimar el transporte vertical.
El parámetro de difusividad derivado ofrece una herramienta valiosa para estudiar los efectos de la contaminación en estos entornos.

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