Optimal behavior of viscoelastic flow at resonant frequencies

The global entropy generation rate in the zero-mean oscillatory flow of a Maxwell fluid in a pipe is analyzed with the aim at determining its behavior at resonant flow conditions. This quantity is calculated explicitly using the analytic expression for the velocity field and assuming isothermal conditions. The global entropy generation rate shows well-defined peaks at the resonant frequencies where the flow displays maximum velocities. It was found that resonant frequencies can be considered optimal in the sense that they maximize the power transmitted to the pulsating flow at the expense of maximum dissipation.Comment: Paper accepted to be published in Phys. Rev.

SystemC-based cosimulation for global validation of MOEMS

To improve productivity and design space exploration in MOEMS design, new high levels specification and validation methodologies are required. These methodologies have to deal with systems heterogeneity. In this paper we present SystemC based cosimulation methodology. for the global validation of MOEMS which is starting from a heterogeneous specification where the different modules may be described at different abstraction levels or using different specification languages