You are currently viewing a new version of our website. To view the old version click .

Fluids, Volume 9, Issue 10

October 2024 - 24 articles

Cover Story: Reduced molecular collisions in microscale applications lead to unusual effects in homogeneous gaseous mixtures such as gas-phase separation. Using a modified lattice Boltzmann model with generalized slip boundary conditions coupled with a ray-tracing algorithm, this research investigates rarefied mixtures’ behaviour in 3D porous media. Transition flow regimes are simulated by incorporating the Knudsen diffusion effect as an external force. The model is validated with microchannel flow data, and the impact of porosity and gas mixture composition on gas separation is explored. The results show that gas separation increases with rarefaction and molecular mass ratio, and geometrical features in porous media significantly affect permeability in highly rarefied conditions. A permeability enhancement factor based on the lightest gas species is also derived. View this paper
  • Issues are regarded as officially published after their release is announced to the table of contents alert mailing list .
  • You may sign up for email alerts to receive table of contents of newly released issues.
  • PDF is the official format for papers published in both, html and pdf forms. To view the papers in pdf format, click on the "PDF Full-text" link, and use the free Adobe Reader to open them.

Articles (24)

  • Article
  • Open Access
1 Citations
2,000 Views
16 Pages

Optimization of Rotational Hydrodynamic Cavitation Reactor Geometry

  • Maxim Omelyanyuk,
  • Alexey Ukolov,
  • Irina Pakhlyan,
  • Nikolay Bukharin and
  • Mouhammad El Hassan

20 October 2024

A Rotary-Pulsation Apparatus (RPA), also known in the literature as a Rotational Hydrodynamic Cavitation Reactor (RHCR), is a device which typically consists of a rotating mechanism that generates pulsations or vibrations within a fluid. This can be...

  • Article
  • Open Access
2,040 Views
24 Pages

Numerical Simulations of Impact River Morphology Evolution Mechanism Under the Influence of Floodplain Vegetation

  • Heng Xiang,
  • Zhimeng Zhang,
  • Chunning Ji,
  • Dong Xu,
  • Xincong Chen,
  • Lian Tang and
  • Yuelei Wang

20 October 2024

Shallow floodplains play a crucial role in river basins by providing essential ecological, hydrological, and geomorphic functions. During floods, intricate hydrodynamic conditions arise as flow exits and re-enters the river channel, interacting with...

  • Article
  • Open Access
1 Citations
1,029 Views
11 Pages

18 October 2024

An analogy between magneto-fluid dynamics (MFD/MHD) and geostrophic flow in a rotating frame of reference, including the existence of electromagnetic columns identical to Taylor–Proudman columns, is identified and demonstrated theoretically her...

  • Correction
  • Open Access
768 Views
6 Pages

17 October 2024

Figures: In Section 5, we aligned Figures 14–18 by consistently adding all the modelling parameters inside the labels [...]

  • Article
  • Open Access
1 Citations
1,215 Views
18 Pages

14 October 2024

A novel method of determining the possible shapes of pressure wavefronts in ducts after they have travelled sufficient distances to evolve to asymptotic states is introduced. Although it is possible in principle to achieve the same outcome by simulat...

  • Article
  • Open Access
2 Citations
2,206 Views
17 Pages

12 October 2024

Nowadays, engine experimental research represents a very expensive field within the automotive industry, but it remains fundamental for engine and vehicle development. The present work aims to investigate a novel approach for engine control system ca...

  • Article
  • Open Access
2,612 Views
30 Pages

Finite Element Analysis and Computational Fluid Dynamics for the Flow Control of a Non-Return Multi-Door Reflux Valve

  • Xolani Prince Hadebe,
  • Bernard Xavier Tchomeni Kouejou,
  • Alfayo Anyika Alugongo and
  • Desejo Filipeson Sozinando

9 October 2024

This paper presents a comprehensive analysis of a multi-door check valve using computational fluid dynamics (CFD) and finite element analysis (FEA) to evaluate flow performance under pressure test conditions, with an emphasis on its ability to preven...

  • Article
  • Open Access
4 Citations
4,510 Views
26 Pages

Lattice Boltzmann Model for Rarefied Gaseous Mixture Flows in Three-Dimensional Porous Media Including Knudsen Diffusion

  • Michel Ho,
  • Jean-Michel Tucny,
  • Sami Ammar,
  • Sébastien Leclaire,
  • Marcelo Reggio and
  • Jean-Yves Trépanier

9 October 2024

Numerical modeling of gas flows in rarefied regimes is crucial in understanding fluid behavior in microscale applications. Rarefied regimes are characterized by a decrease in molecular collisions, and they lead to unusual phenomena such as gas phase...

  • Article
  • Open Access
2 Citations
1,586 Views
22 Pages

9 October 2024

Researchers have attempted to improve heat transfer in mini/microchannel heat sinks by dispersing nano-encapsulated phase change (NPC) materials in base coolants. While NPC slurries have demonstrated improved heat transfer performance, their applicat...

  • Article
  • Open Access
3 Citations
1,564 Views
12 Pages

Modeling and Visualization of Coolant Flow in a Fuel Rod Bundle of a Small Modular Reactor

  • Sergei Dmitriev,
  • Tatiyana Demkina,
  • Aleksandr Dobrov,
  • Denis Doronkov,
  • Daniil Kuritsin,
  • Danil Nikolaev,
  • Alexey Pronin,
  • Anton Riazanov and
  • Dmitriy Solntsev

8 October 2024

This article presents the results of an experimental study of the coolant flow in a fuel rod bundle of a nuclear reactor fuel assembly of a small modular reactor for a small ground-based nuclear power plant. The aim of the work is to experimentally d...

of 3

Get Alerted

Add your email address to receive forthcoming issues of this journal.

XFacebookLinkedIn
Fluids - ISSN 2311-5521