INVESTIGADORES
HUESPE Alfredo Edmundo
congresos y reuniones científicas
Título:
Control of Heat Flux Using Computationally Designed Metamaterials
Autor/es:
FACHINOTTI V; IGNACIO PERALTA; A E. HUESPE; A. CIARBONETTI
Lugar:
Foz de Iguazú
Reunión:
Conferencia; 5th International Conference on Engineering Optimization; 2016
Institución organizadora:
OptimizE ? Engineering Optimization Lab COPPE/Mechanical Engineering Program Federal University of Rio de Janeiro, Brazil
Resumen:
To gain control over the diffusive heat flux in a given domain, one has to design metamaterialswith a specific distribution of the generally anisotropic thermal conductivity throughout the domain.Until now, the appropriate conductivity distribution was usually determined using transformationthermodynamics. By this way, only a few particular cases of heat flux control in simple domainshaving simple boundary conditions were studied. As a more general approach, we propose to definethe heat control problem as an optimization problem where we minimize the error in guiding the heatflux in a given way, taking as design variables the parameters that define the variable microstructureof the metamaterial. Anisotropic conductivity is introduced by using a metamaterial made of layersof two materials with highly different conductivities, the thickness of the layers and their orientationthroughout the domain are the current design variables. As an application example we design adevice that thermally shields the region it encloses, while it keeps unchanged the flux outside it.