Abstract: A mixing apparatus has a chamber, a shaft extending into the chamber, a motor drivingly interconnected to the shaft, a nozzle support affixed to the shaft and extending outwardly therefrom within the chamber, and a nozzle having an interior passageway affixed to the nozzle support such that the nozzle moves in the chamber as the motor drivingly rotates the shaft. The chamber has a multi-phase fluid therein. The nozzle moves through the fluid such that fluid is channeled through the interior passageway at a same rate that the nozzle moves through the fluid. Another nozzle can be affixed to the nozzle support diametrically opposite to the nozzle.

Abstract: A mixing apparatus has a chamber, a shaft extending into the chamber, a motor drivingly interconnected to the shaft, a nozzle support affixed to the shaft and extending outwardly therefrom within the chamber, and a nozzle having an interior passageway affixed to the nozzle support such that the nozzle moves in the chamber as the motor drivingly rotates the shaft. The chamber has a multi-phase fluid therein. A flow restrictor is affixed to an inner wall of said chamber so as to extend inwardly therefor. The flow restrictor is a plurality of flat panels arranged in spaced relation around the interior of the chamber and within a liquid phase of the multi-phase fluid.

Abstract: An apparatus for testing a plurality of fluid samples at elevated temperatures or pressures, while providing for simultaneous stirring of the fluid samples to simulate desired fluid flow regimes. The apparatus comprises a stirrer compartment disposed within an adjustable temperature controlled and insulated enclosure. A plurality of magnetic stirring shaft assemblies are rotatably disposed within the temperature controlled and insulated enclosure in close proximity to the stirrer compartment. A plurality of pressurized sample cells containing fluid samples to be tested and magnetic stir bars can be placed on the test platform. The fluid samples can be continuously stirred in synchronized fashion by motivating the magnetic stir bars by means of synchronized rotation of the magnetic stirring shaft assemblies. Various flow regimes can be simulated by adjusting the rotational speed of the stirring shaft assemblies.