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test_cases:five [2020/06/30 16:07]
grenier 		test_cases:five [2020/06/30 16:15]
grenier
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 Boundary conditions are for the left boundary imposed positive temperature (5°C) and zero temperature gradient for the other limits (zero heat conductive fluxes). Water transfer boundary conditions are uniform flow from left (inflow) to right (outflow) as sketched below Boundary conditions are for the left boundary imposed positive temperature (5°C) and zero temperature gradient for the other limits (zero heat conductive fluxes). Water transfer boundary conditions are uniform flow from left (inflow) to right (outflow) as sketched below
  
-{{ conditions_hydro.jpg?300 }} [[intercomparaison_results:test_case1|Case 1]]+{{ conditions_hydro.jpg?300 }} 
  
 The evolution of the system consists of a progressive degradation of the initial frozen zone due to conduction and heat advection (through-flow of warmer water). The evolution of the system is quicker for large head gradients leading to strong effect of heat advection. The influence is illustrated on the evolution of temperature profiles along the main longitudinal axis of the system for the case without water flow (thermal degradation solely due to conduction) and for a head gradient of 0.06 (characteristic thermal plume). After a threshold simulation time, the temperature of the initial frozen inclusion rises above 0°C and the colder temperature field is advected to the right of the domain.  The evolution of the system consists of a progressive degradation of the initial frozen zone due to conduction and heat advection (through-flow of warmer water). The evolution of the system is quicker for large head gradients leading to strong effect of heat advection. The influence is illustrated on the evolution of temperature profiles along the main longitudinal axis of the system for the case without water flow (thermal degradation solely due to conduction) and for a head gradient of 0.06 (characteristic thermal plume). After a threshold simulation time, the temperature of the initial frozen inclusion rises above 0°C and the colder temperature field is advected to the right of the domain.