IFLYSIB 05383
INSTITUTO DE FISICA DE LIQUIDOS Y SISTEMAS BIOLOGICOS
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
Hydrodynamic of sap flow
Autor/es:
A.G. MEYRA; V.A. KUZ; G.J. ZARRAGOICOECHEA
Lugar:
Mendoza Capital
Reunión:
Congreso; FLUIDOS-2006: IX Reunión sobre Recientes Avances en Física de Fluidos y sus Aplicaciones; 2006
Institución organizadora:
Universidad Nacional de Cuyo
Resumen:
A simple model for describing the water flow in the xylem vascular system is presented here. The basic assumptions of the model are: conservation of mass (continuity equation), the Darcy equation for the water flow and the capillary pressure as the driving force. An equation of diffusion for the excess pressure is derived and solved using initial and boundary condition for the xylem system. The predicted variations of xylem tension, gradient xylem tension and water velocity with time and position are in agreement with recent experiments.
