A gas-liquid-solid inverse  uidization airlift bioreactor was proposed by combining advantages of external-loop airlift reactors and inverse  uidized beds. This airlift bioreactor comprises a gas-liquid riser, a gas separator, a liquid-solid inverse  uidized downcomer and a bottom connector. The effects of the gas velocity and the particle loading on the gas holdup in the riser and the liqui...

Molecular gas in the merging starburst galaxy NGC 3256 has been imaged with the Submillimeter Array at a resolution of 1×2 (170 × 340 pc at 35 Mpc). This is the first interferometric imaging of molecular gas in the most luminous galaxy within z=0.01. There is a large disk of molecular gas (r > 3 kpc) in the center of the merger with a strong gas concentration toward the double nucleus. The gas ...

A predictive model for droplet size and velocity distributions of a pressure swirl atomizer has been proposed based on the maximum entropy formalism (MEF). The constraint conditions of the MEF model include the conservation laws of mass, momentum, and energy. The effects of liquid swirling strength, Weber number, gas-to-liquid axial velocity ratio and gas-to-liquid density ratio on the droplet ...

In this study, it was aimed to control the formation of flow regimes planned be in gasification process on model, and hydrodynamic structure circulating fluidized bed gasifier obtained using MFIX program. For purpose, a model established before pilot scale systems modeling performed by entering system dimensions that were calculated analytically. Because is necessary condition from point view c...

A kinetic ux-splitting procedure used in conjunction with local ther-modynamic equilibrium in a nite volume allows us to investigate numerically discrete-velocity gas ows. The procedure, outlined for a general discrete-velocity gas, is used to simulate ows of the nine-velocity gas, a simple two dimensional multiple-speed discrete-velocity gas, wherein a mul-tiplicity of speeds ensures nontrivia...

In front of the LMC molecular hydrogen is found in absorption near 0 kms, being local disk gas, near +60 kms in an intermediate velocity cloud, and near +120 kms, being a high velocity halo cloud. The nature of the gas is discussed based on four Orfeus far UV spectra of LMC stars and including data from the ground and from the IUE satellite. The local gas is cool and, given a span of sight line...

The miscible liquid-liquid two phases based on Taylor flow in microchannels was investigated by high-speed imaging techniques and Villermaux/Dushman reaction. The mixing based on Taylor flow was much better compared with that without introducing gas in microchannels, even the ideal micromixing performance could be obtained under optimized superficial gas and liquid velocities. In the mixing pro...

Abstract The dynamic behaviors of a horizontal piping structure with an elbow due to the two-phase flow excitation are experimentally investigated. effects patterns and superficial velocities on pressure pulsations vibration responses evaluated in detail. A strong partition coupling algorithm is used calculate flow-induced (FIV) pipe, theoretical values agree well experimental results. It found...