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Fluids, Volume 8, Issue 11

November 2023 - 21 articles

Cover Story: Transport and mixing in the gastric duct occur via peristaltic flow. In vivo data are hard to collect and require strict ethical approval. In contrast, both in vitro and in silico studies allow detailed investigation and can be constructed to answer specific questions. The aim of this study was to design a new elastic thermoplastic polyurethane (TPU) intestine model and to compare the flow patterns observed experimentally with those predicted by a fluid–structure interaction (FSI) simulation. Here, we present complementary studies that allow feedback to improve both techniques and provide mutual validation. The experimental work provides direct measurement of mixing, and the simulation allows the experimental setup to be studied to determine the impacts of various parameters. View this paper
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Articles (21)

  • Article
  • Open Access
3,534 Views
16 Pages

20 November 2023

In this work we investigate the effectiveness of the Backward Euler-Backward Differentiation Formula (BE-BDF2) in solving unsteady compressible inviscid and viscous flows. Furthermore, to improve its accuracy and its order of convergence, we have equ...

  • Review
  • Open Access
15 Citations
6,999 Views
25 Pages

Modeling of Indirect Evaporative Cooling Systems: A Review

  • Roberta Caruana,
  • Stefano De Antonellis,
  • Luca Marocco and
  • Manfredo Guilizzoni

18 November 2023

Air-to-air indirect evaporative cooling (IEC) systems are particular heat exchangers that use the latent heat of evaporation of water to cool down an air stream, without increasing its specific humidity, thus guaranteeing adequate thermohygrometric c...

  • Article
  • Open Access
7 Citations
3,461 Views
10 Pages

16 November 2023

Thanks to recent technological and IT advances, there have been rapid developments in biomedical and health research applications of computational fluid dynamics. This is a methodology of computer-based simulation that uses numerical solutions of the...

  • Article
  • Open Access
6 Citations
3,341 Views
16 Pages

16 November 2023

Spray impacts can be found in several technical applications and consist of many single droplets, which impact under different trajectories on wetted walls. This study investigates the asymmetric crown morphology resulting from an oblique impact (&al...

  • Article
  • Open Access
6 Citations
2,525 Views
15 Pages

15 November 2023

Dropwise condensation (DWC) of steam over hybrid hydrophobic–hydrophilic surfaces is numerically investigated via a phenomenological, Lagrangian model. The full non-dimensionalization of the heat transfer model, needed to determine the droplet...

  • Article
  • Open Access
2 Citations
3,987 Views
17 Pages

Effect of Local Floor Heating System on Occupants’ Thermal Comfort and Energy Consumption Using Computational Fluid Dynamics (CFD)

  • Hassan J. Dakkama,
  • Ahmed Jawad Khaleel,
  • Ahmed Qasim Ahmed,
  • Wisam A. M. Al-Shohani and
  • Hayder M. B. Obaida

13 November 2023

In this article, the influence of splitting a local underfloor air distribution system (UFAD) on indoor thermal comfort for three occupants was studied numerically. A validated computational fluid dynamics (CFD) model was employed in this investigati...

  • Article
  • Open Access
2,265 Views
20 Pages

10 November 2023

Steady-state one-dimensional flows of five-component air behind a normal shock wave are considered with a one-temperature model. A mathematical model is formulated to describe the relaxation of a five-component air mixture with a one-temperature non-...

  • Article
  • Open Access
2 Citations
3,186 Views
19 Pages

Simulating Flow in an Intestinal Peristaltic System: Combining In Vitro and In Silico Approaches

  • Xinying Liu,
  • Chao Zhong,
  • David F. Fletcher and
  • Timothy A. G. Langrish

10 November 2023

Transport and mixing in the gastric duct occur via peristaltic flow. In vivo data are hard to collect and require strict ethical approval. In contrast, both in vitro and in silico studies allow detailed investigation and can be constructed to answer...

  • Article
  • Open Access
3 Citations
2,796 Views
10 Pages

Detonation in van der Waals Gas

  • Andriy A. Avramenko,
  • Igor V. Shevchuk,
  • Margarita M. Kovetskaya and
  • Yulia Y. Kovetska

7 November 2023

Solving problems of detonation control is associated with obtaining detailed information about the gas dynamics accompanying the detonation process. This paper focuses on the dynamics of real gas flow through a plane detonation wave. The influence of...

  • Review
  • Open Access
12 Citations
7,095 Views
24 Pages

Fluid–Structure Interaction Aortic Valve Surgery Simulation: A Review

  • Alex G. Kuchumov,
  • Anastasiya Makashova,
  • Sergey Vladimirov,
  • Vsevolod Borodin and
  • Anna Dokuchaeva

4 November 2023

The complicated interaction between a fluid flow and a deformable structure is referred to as fluid–structure interaction (FSI). FSI plays a crucial role in the functioning of the aortic valve. Blood exerts stresses on the leaflets as it passes...

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Fluids - ISSN 2311-5521