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Presión termomolecular en el derretimiento de la superficie: motivación para el levantamiento de las heladas
Science (New York, N.Y.)
|December 22, 1989
Resumen
Una presión termomolecular recientemente identificada impulsa el flujo de masa a lo largo de las interfaces durante la fusión de la superficie. Esta presión termodinámica puede explicar los fenómenos de hielo en el suelo congelado.
Área de la Ciencia:
- La termodinámica es la termodinámica.
- Física de la superficie de las superficies.
- La geofísica es la geofísica.
Sus antecedentes:
- El derretimiento de la superficie es un fenómeno complejo.
- El flujo de masa a lo largo de las interfaces puede ocurrir bajo gradientes térmicos.
- Los principios termodinámicos subyacentes requieren una mayor aclaración.
Objetivo del estudio:
- Para identificar y caracterizar una presión termomolecular.
- Para investigar el papel de esta presión en la conducción del flujo de masa interfacial.
- Para explorar su conexión potencial con fenómenos naturales como el levantamiento de las heladas.
Principales métodos:
- Análisis teórico de las funciones termodinámicas.
- Modelado de fenómenos interfaciales bajo gradientes de temperatura.
- Examen del comportamiento de la presión en el límite de las películas gruesas.
Principales resultados:
- Una presión termomolecular está asociada con la fusión de la superficie.
- Esta presión universalmente impulsa el flujo de masa a lo largo de una interfaz cuando un gradiente de temperatura lateral está presente.
- La presión es una función termodinámica universal en el límite de las películas gruesas.
Conclusiones:
- La presión termomolecular es un factor clave en el transporte de masa interfacial durante la fusión de la superficie.
- Esta presión proporciona una posible explicación para la elevación de las heladas en el suelo congelado.
- La investigación adicional puede explorar sus implicaciones en otros sistemas termodinámicos y geofísicos.
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