Palabras clave
Titan2D
volcán Turrialba
ecuaciones de aguas someras
peligros volcánicos
análisis de peligros
avalancha de detritos
flujos block-and-ash
Numerical modeling
Titan2D
Turrialba volcano
shallow-water equations
volcanic hazards
hazard assessment
debris avalanche
block-and-ash flows
Cómo citar
Resumen
Este artículo introduce Titan2D, un modelo de aguas someras para flujos granulares incompresibles tipo Coulomb. Titan2D ha sido utilizado extensamente para predecir la inundación de flujos block-and-ash y avalanchas de detritos. Puede funcionar como un programa separado o en la plataforma computacional Vhub. Aquí se discuten consideraciones prácticas para escoger valores de entrada apropiados y las bases para correr el modelo. Se presentan ejemplos de terrenos sintéticos y naturales, incluyendo simulaciones de un flujo block-and-ash generado en el volcán Turrialba (Costa Rica). Los resultados sugieren que el modelo debe ser utilizado en la simulación de flujos granulares densos, como aquellos producidos por eventos de colapso gravitacional de domos volcánicos, pero no puede ser ocupado para simular corrientes de densidad piroclástica diluidas. Finalmente, la estimación de los términos de resistencia de Titan2D ocupando relaciones empíricas constituye un buen método para reducir incertezas en los parámetros de entrada del modeloCitas
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