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his article studies the coupling between prescribed thermal oscillations in the surface of a micro-cylinder and vortex shedding. We deal with the unsteady, laminar, compressible flow regime where the aerodynamics forces have a periodic behavior. It is shown that appropriate spatial and time-dependent temperature oscillations on the surface of the micro-cylinder create a resonance that controls the amplitude and frequency of both lift and drag coefficients. In practice, what we study is a mechanism to modulate the amplitude and frequency of mechanical loads of aerodynamics origin in a micro-structure by using surface temperature fluctuations as the control parameter.

his article studies the coupling between prescribed thermal oscillations in the surface of a micro-cylinder and vortex shedding. We deal with the unsteady, laminar, compressible flow regime where the aerodynamics forces have a periodic behavior. It is shown that appropriate spatial and time-dependent temperature oscillations on the surface of the micro-cylinder create a resonance that controls the amplitude and frequency of both lift and drag coefficients. In practice, what we study is a mechanism to modulate the amplitude and frequency of mechanical loads of aerodynamics origin in a micro-structure by using surface temperature fluctuations as the control parameter.

Paciente de sexo masculino, de ocho años, natural y procedente de Pitalito (Huila), de raza mestiza. Enfermedad actual y antecedentes. Remitido de Neiva por aparición de masa en maxilar izquierdo de crecimiento progresivo, indolora de consistencia dura y sin signos inflamatorios. Una semana antes de ingresar al hospital presentó edemas en miembros inferiores, disminución del volumen urinario y aumento progresivo del perímetro abdominal. En el Hospital de Neiva le practicaron biopsia de la masa maxilar y lo remiten para tratamiento.