To improve the understanding of how static mixers work and how to better utilize them in environmental engineering ~or, specifically, drinking water treatment!, a numerical model for simulating turbulent flows in helical static mixers is developed. The model solves the three-dimensional, Reynolds-averaged Navier-Stokes equations, closed with the k-v turbulence model, using a second-orderaccurat...

This brief presents the design of an improved linear Gilbert mixer with high conversion gain and low noise figure by using multiple gated transistor (MGTR) and switched biasing technique. This mixer operates at a radio frequency (RF) of 2.4GHz with a local oscillator (LO) power of 5dBm in UMC 180nm process. The MGTR method is used to increase the linearity of the proposed mixer by the parallel ...

Mixing is a common process in food industry, and in particular it is interesting to develop optimal mixers in order maximize fluid mixing and minimize energy consumption by reducing the viscous dissipation effects. Although many studies and results had been presented in literature for both batch and static mixers (Rauline et al. 2000 and Mutsakis et al. 1986 for a review) the lack of a develope...