ConceptualizationReflectiveObservationActiveExperimentationAccommodatingDiverging ConvergingAssimilating

Experiments show that particles smaller than the throat size of converging-diverging microchannels can sometimes be trapped near the throat. This critical phenomenon is associated with the negative dc dielectrophoresis arising from nonuniform electric fields in the microchannels. A finite-element model, accounting for the particle-fluid-electric field interactions, is employed to investigate th...

An approach based on the direct simulation Monte Carlo method is proposed to model a core flow in converging–diverging nozzle. The area of applicability this defined by Boltzmann equation, which allows fully kinetic models that accurately capture thermal and chemical nonequilibrium be applied gas flows where regime rapidly changes from continuum transitional. validated through comparison with a...

The diverging and converging components of localized wave solutions are studied within the framework of both the Whittaker and Weyl plane wave expansions. The specific example of the splash pulse is considered because its evanescent components could be derived in an explicit closed form. It is shown that, in the Weyl picture, the evanescent fields associated with the diverging and converging co...

The diverging and converging field components of the source-free focus wave modes are studied within the framework of both the Whittaker and Weyl plane wave expansions. It is shown that, in the Weyl picture, the evanescent fields associated with the diverging and converging components of the focus wave mode solution cancel each other identically. The source-free focus wave modes are, hence, com...