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Fluids, Volume 6, Issue 1

January 2021 - 46 articles

Cover Story: The front wing is the most influential aerodynamic component on an open-wheel race car, but its performance during the critical cornering condition is rarely explored, in part because it cannot be accurately simulated in a traditional wind tunnel where only fixed yaw is possible. However, the flexibility of computational fluid dynamics allows a true representation of this condition to be simulated. Hence, this study investigates the aerodynamics of a generic, three-element part–span–flap front wing in ground effect with comparisons made between true cornering, implemented by applying a global centre of rotation to the computational domain together with the apt boundary conditions, and straight-line and fixed yaw conditions. Overall, flow-field asymmetry was the main theme of the findings. View this paper.
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Articles (46)

  • Article
  • Open Access
5 Citations
5,202 Views
22 Pages

19 January 2021

The emissions from the industrial furnaces impact the environment. Among the various factories, those having anode baking furnaces are working on reducing the pollutant emissions. The aerodynamics in the furnace influences the emissions due to the hi...

  • Article
  • Open Access
6 Citations
11,818 Views
16 Pages

18 January 2021

The car aerodynamicist developing passenger cars is primarily interested in reducing aerodynamic drag. Considerably less attention is paid to the lift characteristics except in the case of high-performance cars. Lift, however, can have an effect on b...

  • Article
  • Open Access
9 Citations
3,350 Views
14 Pages

17 January 2021

Passive methods using vortex generators (VGs) to enhance heat transfer have been a concern of researchers in recent decades. This study is intended to investigate the strength of the vortex generated by VGs by trying to reduce the pressure drop in th...

  • Article
  • Open Access
4 Citations
3,446 Views
13 Pages

Onset of Inertial Magnetoconvection in Rotating Fluid Spheres

  • Radostin D. Simitev and
  • Friedrich H. Busse

13 January 2021

The onset of convection in the form of magneto-inertial waves in a rotating fluid sphere permeated by a constant axial electric current is studied in this paper. Thermo-inertial convection is a distinctive flow regime on the border between rotating t...

  • Article
  • Open Access
5 Citations
7,806 Views
20 Pages

13 January 2021

We give a rather short and self-contained presentation of the global existence for Leray-Hopf weak solutions to the three dimensional incompressible Navier-Stokes equations, with constant density. We give a unified treatment in terms of the domains a...

  • Article
  • Open Access
7 Citations
4,171 Views
18 Pages

Comparison of Rheological Behaviour of Bio-Based and Synthetic Epoxy Resins for Making Ecocomposites

  • Samireh Vahid,
  • Valentino Burattini,
  • Saeed Afshinjavid and
  • Arash Dashtkar

12 January 2021

In this paper, the rheological behaviour of a petroleum-based epoxy (EL2 laminating epoxy) was compared with the Super Sap CLR clear bio-resin epoxy. The focus of the work was on the viscous and viscoelastic performance of these epoxy resins. Rheolog...

  • Article
  • Open Access
19 Citations
4,161 Views
22 Pages

Turbulent Bubble-Laden Channel Flow of Power-Law Fluids: A Direct Numerical Simulation Study

  • Felix Bräuer,
  • Elias Trautner,
  • Josef Hasslberger,
  • Paolo Cifani and
  • Markus Klein

12 January 2021

The influence of non-Newtonian fluid behavior on the flow statistics of turbulent bubble-laden downflow in a vertical channel is investigated. A Direct Numerical Simulation (DNS) study is conducted for power-law fluids with power-law indexes of 0.7 (...

  • Article
  • Open Access
16 Citations
5,453 Views
34 Pages

An Optimized-Parameter Spectral Clustering Approach to Coherent Structure Detection in Geophysical Flows

  • Margaux Filippi,
  • Irina I. Rypina,
  • Alireza Hadjighasem and
  • Thomas Peacock

12 January 2021

In Lagrangian dynamics, the detection of coherent clusters can help understand the organization of transport by identifying regions with coherent trajectory patterns. Many clustering algorithms, however, rely on user-input parameters, requiring a pri...

  • Article
  • Open Access
2 Citations
2,912 Views
24 Pages

11 January 2021

The dynamics of the coherent structures in a turbulent three-dimensional wall jet with an exit Reynolds number of 250,000 were investigated using the Snapshot Proper Orthogonal Decomposition (POD). A low-dimensional reconstruction using the first 10...

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Fluids - ISSN 2311-5521