Microfluidic droplet generators offer distinctive advantages to create emulsions that cannot be matched by conventional methods such as membrane or batch emulsification[1]. Since microfluidic droplets are created in a confined and controlled space in a chip, they can be used as micro-reactors to perform delicate chemical reactions that take advantage of the scaling laws associated with miniatur...

An indicator dilution method for measuring oscillatory flow in a vessel is analyzed in terms of a mixing chamber with a constant volume. For the correct measurement of mean flow, the time constant of detection of the indicator Should be very much shorter than the shortest time constant of the mixing volume. The performance of such a system was examined with a thermal indicator. Although the app...

Cospectral budgets are used to link the kinetic and potential energy distributions of turbulent eddies, as measured by their spectra, to macroscopic relations between the turbulent Prandtl number (Prt) and atmospheric stability measures such as the stability parameter z, the gradient Richardson number Rg, or the flux Richardson number Rf in the atmospheric surface layer. The dependence of Prt o...

A novel two-thermocouple sensor characterisation method for use in variable velocity flow environments is described. A difference equation method, recently developed by the authors for constant velocity flow applications, is extended to accommodate variable velocity flows using polynomial parameter fitting on a sliding data window. In particular, by using a novel difference equation formulation...

• The actual flow rate is constant for the outlet pressure range of 35.30 psig to as low as a complete vacuum. The flow rate can be obtained from the charts on pages 16-18; e.g. for an orifice of .010" diameter and with 80 psig inlet pressure, the choked flow rate is 8.4 scfh (page 16). This flow rate will be constant for all outlet pressure conditions between 35.30 psig and full vacuum. 0 1 .5...