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Dynamics, Volume 4, Issue 2

2024 June - 14 articles

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Articles (14)

  • Article
  • Open Access
7 Citations
4,304 Views
24 Pages

A Comparative Study of Different CFD Codes for Fluidized Beds

  • Parindra Kusriantoko,
  • Per Fredrik Daun and
  • Kristian Etienne Einarsrud

16 June 2024

Fluidized beds are pivotal in the process industry and chemical engineering, with Computational Fluid Dynamics (CFD) playing a crucial role in their design and optimization. Challenges in CFD modeling stem from the scarcity or inconsistency of experi...

  • Article
  • Open Access
3 Citations
2,357 Views
18 Pages

An Optimum Design for a Fast-Response Solenoid Valve: Application to a Limaçon Gas Expander

  • Md Shazzad Hossain,
  • Ibrahim Sultan,
  • Truong Phung and
  • Apurv Kumar

3 June 2024

Organic Rankine Cycle (ORC)–based small-scale power plants are becoming a promising instrument in the recent drive to utilize renewable sources and reduce carbon emissions. But the effectiveness of such systems is limited by the low efficiency...

  • Article
  • Open Access
1 Citations
2,599 Views
32 Pages

3 June 2024

High-pressure gas quenching is widely used in the metals industry during the heat treatment processing of steel specimens to improve their material properties. In a gas quenching process, a preheated austenised metal specimen is rapidly cooled with a...

  • Review
  • Open Access
2,122 Views
31 Pages

Cupolets: History, Theory, and Applications

  • Matthew A. Morena and
  • Kevin M. Short

13 May 2024

In chaos control, one usually seeks to stabilize the unstable periodic orbits (UPOs) that densely inhabit the attractors of many chaotic dynamical systems. These orbits collectively play a significant role in determining the dynamics and properties o...

  • Article
  • Open Access
1,910 Views
37 Pages

13 May 2024

Thermo-vortices (bright spots, blobs, swirls) in cosmic fluids (planetary atmospheres, or even black hole accretion disks) are sometimes observed as clustered into quasi-symmetrical quasi-stationary groups but conceptualized in models as autonomous i...

  • Article
  • Open Access
8 Citations
2,863 Views
20 Pages

Estimating Spatio-Temporal Building Power Consumption Based on Graph Convolution Network Method

  • Georgios Vontzos,
  • Vasileios Laitsos,
  • Avraam Charakopoulos,
  • Dimitrios Bargiotas and
  • Theodoros E. Karakasidis

2 May 2024

Buildings are responsible for around 30% and 42% of the consumed energy at the global and European levels, respectively. Accurate building power consumption estimation is crucial for resource saving. This research investigates the combination of grap...

  • Article
  • Open Access
1,148 Views
15 Pages

Lie Symmetries of the Wave Equation on the Sphere Using Geometry

  • Michael Tsamparlis and
  • Aniekan Magnus Ukpong

29 April 2024

A semilinear quadratic equation of the form Aij(x)uij=Bi(x,u)ui+F(x,u) defines a metric Aij; therefore, it is possible to relate the Lie point symmetries of the equation with the symmetries of this metric. The Lie symmetry conditions break into two s...

  • Article
  • Open Access
2 Citations
2,256 Views
19 Pages

25 April 2024

The emergence of electric vehicles has brought new issues such as the problem of rolling element bearings (REBs) operating at high speeds. Losses due to these components in mechanical transmissions are a key issue and must therefore be taken into acc...

  • Article
  • Open Access
2,319 Views
16 Pages

SPH Simulation of Molten Metal Flow Modeling Lava Flow Phenomena with Solidification

  • Shingo Tomita,
  • Joe Yoshikawa,
  • Makoto Sugimoto,
  • Hisaya Komen and
  • Masaya Shigeta

19 April 2024

Characteristic dynamics in lava flows, such as the formation processes of lava levees, toe-like tips, and overlapped structures, were reproduced successfully through numerical simulation using the smoothed particle hydrodynamics (SPH) method. Since t...

  • Article
  • Open Access
2 Citations
1,603 Views
15 Pages

16 April 2024

This paper discusses the auto-correlation functions of chaotic binary sequences obtained by a one-dimensional chaotic map and two binary functions. The two binary functions are alternately used to obtain a binary sequence from a chaotic real-valued s...

  • Article
  • Open Access
1 Citations
1,446 Views
18 Pages

7 April 2024

For many engineering applications, it is sufficient to use the concept of simple materials. However, higher gradients of the kinematic variables are taken into account to model materials with internal length scales as well as to describe localization...

  • Article
  • Open Access
1,841 Views
21 Pages

A Versatile Deposition Model for Natural and Processed Surfaces

  • Cihan Ates,
  • Rainer Koch and
  • Hans-Jörg Bauer

30 March 2024

This paper introduces a robust deposition model designed for exploring the growth dynamics of deposits on surfaces under practical conditions. The study addresses the challenge of characterizing the intricate morphology of deposits, exhibiting signif...

  • Article
  • Open Access
3 Citations
2,884 Views
11 Pages

27 March 2024

The paper concerns the dynamics and stability of double-walled carbon nanotubes conveying fluid. The equations of motion adopted in the current study to describe the dynamics of such nano-pipes stem from the classical Bernoulli–Euler beam theor...

  • Article
  • Open Access
1,236 Views
14 Pages

26 March 2024

Given the exponential rise in the amount of data requiring processing in all engineering fields, phenomenological models have become computationally cumbersome. For this reason, more efficient data-driven models have been recently used with the purpo...

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Dynamics - ISSN 2673-8716