Special Issue "Advances, Intensification, and Emerging Technologies in Fluid Flow and Transfer Processes"

A special issue of ChemEngineering (ISSN 2305-7084).

Deadline for manuscript submissions: closed (11 July 2019).

Special Issue Editor

Prof. Tuomas Koiranen
Website
Guest Editor
School of Engineering Science, Lappeenranta University of Technology LUT, Finland
Interests: Fluid flows and process design in chemical&process industries environments, crystallization. The research interests in more specific are: Liquid-liquid dispersions, new efficient solutions in process equipment, mass transfer in multiphase flows, particle mass transfer, virtual process design, process intensification, power-to-chemicals process design.
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Special Issue Information

Dear Colleagues,

This Special Issue is devoted to novel solutions in the fluid flow and mass transfer processes. The application of mass transfer modeling and measurement technologies in both turbulent and laminar flows has a vast potential for the development of new industrial processes. Especially, the understanding of the industrial-scale multiphase process from lab to large scale needs efficient modeling and experimental methods to verify the design of the chemical processes and bioprocesses at hand.

The mass transfer depends on the flow velocity profiles of the fluid phases, the interfacial surface areas, and the chemistry of interface boundaries. The challenges are, for example, the chemical compositions of industrial streams, the small-scale particulate processes, the combination of electrochemistry and the novel energy forms (microwave, ultrasound) involved into flow processes, to name a few. In multiphase systems, several sub-processes are typically involved, because of the reasons mentioned here.

Complex fluids, from pastes to different aerosols and other dispersive systems, are commonly involved in the product manufacturing steps as well as in processes occurring in nature. The deeper understanding of mass transfer in those fluid flow systems is the subject of this Special Issue.

Therefore, the purpose of this Special Issue is to bring new ideas from different branches of research to enhance the development of fluid flow and transfer processes.

Prof. Tuomas Koiranen
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All papers will be peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. ChemEngineering is an international peer-reviewed open access quarterly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 1000 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • Fluid mixing
  • computational fluid dynamics
  • fluid flow measurements
  • mass transfer
  • multiphase flow
  • complex fluids
  • hydrodynamics
  • reactive mass transfer
  • interphasial boundary dynamics
  • polydisperse systems
  • micro-scale phenomena

Published Papers (1 paper)

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Research

Open AccessArticle
Lattice-Boltzmann Simulation and Experimental Validation of a Microfluidic T-Junction for Slug Flow Generation
ChemEngineering 2019, 3(2), 48; https://doi.org/10.3390/chemengineering3020048 - 05 May 2019
Abstract
We investigate the interaction of two immiscible fluids in a head-on device geometry, where both fluids are streaming opposite to each other. The simulations are based on the two-dimensional (2D) lattice Boltzmann method (LBM) using the Rothman and Keller (RK) model. We validate [...] Read more.
We investigate the interaction of two immiscible fluids in a head-on device geometry, where both fluids are streaming opposite to each other. The simulations are based on the two-dimensional (2D) lattice Boltzmann method (LBM) using the Rothman and Keller (RK) model. We validate the LBM code with several benchmarks such as the bubble test, static contact angle, and layered flow. For the first time, we simulate a head-on device by forcing periodicity and a volume force to induce the flow. From low to high flow rates, three main flow patterns are observed in the head-on device, which are dripping-squeezing, jetting-shearing, and threading. In the squeezing regime, the flow is steady and the droplets are equal. The jetting-shearing flow is not as stable as dripping-squeezing. Moreover, the formation of droplets is shifted downstream into the main channel. The last flow form is threading, in which the immiscible fluids flow parallel downstream to the outlet. In contrast to other studies, we select larger microfluidic channels with 1-mm channel width to achieve relatively high volumetric fluxes as used in chemical synthesis reactors. Consequently, the capillary number of the flow regimes is smaller than 10−5. In conclusion, the simulation compares well to experimental data. Full article
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