Venturi tubes are widely used to measure the gas flow rate in a wet-gas stream. To calculate rate, require liquid loading (i.e. Lockhart-Martinelli parameter) be known as an input so-called over-reading correction correlation. It is challenging derive parameter without installing additional devices series tube thus adding significant cost and complexity. A relatively low easy implement method b...

This paper reports a new microfluidic method for pumping fluid and the generation of droplets and bubbles using the Venturi principle, driving flow using pressure without numerous connections or extensive external control systems. The 2-layer devices in PDMS have no moving parts, and can pump fluid at flow rates >

in this paper, size distribution of nano-bubbles was measured by the reliable and fast method of laserdiffraction technique. nano-bubbles were produced using a nano-bubble generator designed and madebased on hydrodynamic cavitation phenomenon in venturi tubes. a central composite design withresponse surface methodology was used to conduct a five factor, five level factorial experimental designo...

The effect of injecting small bubble air into the water stream flowing in two spiral arrangement copper tube 15 m length, 0.012 diameter, and number coils were 11 has been investigated. inner surface solar collector was also painted with a matte black paint mixture nanomaterial (thermal dye 5% TiN). performance examined experimentally Babylon-Iraq, longitude (44.4 E) latitude (32.4 N) under bes...

Cavitation is a typical physical process that has shown to be highly valuable in the wastewater treatment field. This study aims investigate effects of converging and diverging sections Venturi tube on cavitation flow Multiphase flows tubes are presented using mixture model standard k-ε model. And Schnerr Sauer employed simulate vapor–liquid phase transition process. Both grid independence nume...

A rheolytic thrombectomy catheter was used to remove thrombus without thrombolytics from the sigmoid and transverse sinuses of a 34-year-old woman. Using small, high-flow fluid jets and Venturi-effect suction, this catheter allowed mechanical removal of thrombus. This technique may obviate the need for thrombolytic agents and the risks associated with their use.

Certain oxygen therapy masks operating with a venturi were found to possess audible noise levels sufficient to cause annoyance to the user. This was not true of all masks. However, it is recommended that this is a source of noise pollution that should be eliminated by the manufacturers of such devices.

Accurate multiphase flow measurement is vital in monitoring and optimizing various production processes. Deep learning has as of late arose a promising approach for assessing flowrate dependent on customary meters. In this paper, we propose multi-modal sensor Temporal Convolution Network (TCN) based method to predict the volumetric oil/gas two-phase flows. The flowrates liquid gas phase vary fr...