Problems of multiphase fluid filtration /A.N. Konovalov. – National Library
Availability Usually despatched within 2 weeks. With Free Saver Delivery. Facebook Twitter Pinterest Share. Description Reviews More Details. Description This book deals with a spectrum of problems related to the mathematical modeling of multiphase filtration. Emphasis is placed on an inseparable triad: model - algorithm - computer code.
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An analysis of new and traditional filtration problems from the point of view of both their numerical implementation and the reproduction of one or another technological characteristics of the processes under consideration is given. The basic principles which underlie the construction of efficient numerical methods taking into account the filtration problems are discussed: non-evolutionary nature, degeneration, strongly varying coefficients, the temporal duration of the processes involved, etc. Also attention is paid to the splitting method in terms of the physical processes involved, the method of fictitious domains and the method of front separation in grid solution.
A modular analysis is performed with computational algorithms, making it possible to set up simultaneously the structure of the algorithms themselves and the structure of programs to implement these algorithms on a computer.
In conclusion, the author discusses issues concerning the possibility of constructing a model of an oil deposit on a computer. More Details Contributor: A.
The fluid dynamic behavior of single droplets was evaluated for the determination of interfacial coverages and as a qualitative and highly reproducible tool to measure the adsorption kinetics of surfactants. A new correlation is presented describing the volumetric mass transfer coefficients k L a of airlift loop reactors by including the effect of gas phase transient component concentration depletion.
Multiphase Flows Models and Capabilities
The unit was applied for carbon nanotubes catalyst manufacturing. The catalyst prepared by this process was superior with respect to catalyst and product quality compared to a batch process. Due to the cell wall stability, high disruption is necessary, which leads to formation of stable emulsions.
Isolation of essential fatty acids from microalgae offers decisive advantages. A method for integration of the required cell disrupture and product purification is developed, aiming at the recovery of polyunsaturated fatty acids.
A high reuse of deinking paper mill effluents depends on successful silica removal. Formulations of hybrid coagulants based on the combination of an aluminum salt with polyacrylamide and polaymines are significantly more efficient than the base aluminum salts. They allow higher silica and chemical oxygen demand removals at considerably lower dosages without the need of pH regulation.
Lower velocities at the nozzle outlet are shown to favor hydrothermal flame stability.
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The effects of solvent, carbon nanotube type, polymer dosage, casting method, and applied pressure on the membrane performance were investigated. Spin coating was found to be the best casting method for membrane fabrication. An additional coefficient for the dynamic model is proposed that takes into account the variation of the turbulence Reynolds number and depends on the Schmidt number and the numerical cell size.
Undesired release of nanoparticles during their handling may influence health and safety, so appropriate test methods for determining dustiness in industrial processes have to be assessed.
Two commercially available testers technically enhanced by two specific particle analyzers are utilized and initial results are discussed. If you do not receive an email within 10 minutes, your email address may not be registered, and you may need to create a new Wiley Online Library account. If the address matches an existing account you will receive an email with instructions to retrieve your username.
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