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Applied Sciences
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Industrial Applications of Computational Fluid Dynamics, Volume II
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Industrial Applications of Computational Fluid Dynamics, Volume II

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Mechanical Engineering".

Deadline for manuscript submissions: 20 July 2024 | Viewed by 1534

Special Issue Editors

Prof. Dr. Edward Lisowski

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Guest Editor
Department of Applied Informatics, Cracow University of Technology, ul. Warszawska 24, 31-155 Cracow, Poland
Interests: computational fluid dynamics; CFD simulation; fluent modeling and simulation thermal engineering
Special Issues, Collections and Topics in MDPI journals
Dr. Filip Lisowski

E-Mail Website
Guest Editor
Faculty of Mechanical Engineering, Cracow University of Technology, Jana Pawła II 37, 31-864 Cracow, Poland
Interests: machine design; finite element analysis; design optimization
Special Issues, Collections and Topics in MDPI journals
Dr. Grzegorz Filo

E-Mail Website
Guest Editor
Faculty of Mechanical Engineering, Cracow University of Technology, Jana Pawła II 37, 31-864 Cracow, Poland
Interests: object-oriented programming; hydraulics; fuzzy logic; programming languages; artificial intelligence; control systems; MATLAB-Simulink simulation
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

It is our pleasure to invite you to submit articles for inclusion in this Special Issue of Applied Sciences on the field of computational fluid dynamics (CFD).

Hydraulic and pneumatic drives are widely used in vehicles, working machines, and various industrial devices. They enable researchers to obtain large driving forces and moments and exercise precise control of the velocity and position of actuators. These systems' primary energy transfer medium can be hydraulic oil, emulsion water, demineralised water, or the air. The developments in this area are dynamic owing to the enormous industrial demand for components with better characteristics, reduced flow losses, lowered leaks, and greater overall efficiency. When considering new solutions, two primary research directions can be distinguished: studies on entire systems, or studies on the development of individual components. In both cases, computational fluid dynamics methods can be used. Notably, research using CFD may study flow simulations, strength analyses, fatigue and thermal calculations, and interaction with solid elements. The results are of great theoretical and practical importance since they can be widely used in industrial settings.

The Special Issue is primarily focused, but not limited to, the following topics:

  • Hydraulic and pneumatic system flow simulations using CFD;
  • Hydraulic system optimization involving CFD and/or genetic algorithms;
  • CFD simulations with the fluid–structure interaction technique;
  • Geometrical optimization of pressure valves and directional valves;
  • Combining CFD simulations with neural networks and fuzzy logic;
  • Calculation of flow losses through hydraulic components;
  • Flow forces CFD calculation;
  • Estimation of hydrodynamic reactions;
  • Leaks of pumps and hydraulic motors;
  • Fatigue tests of pump bodies, valve bodies and motor bodies;
  • Reduction in pulsation of displacement pumps;
  • Design of hydraulic control systems using logic valves;
  • Design of hydraulic control systems using flow control valves;
  • Proportional technique—component development and industrial applications;
  • Accuracy improvement of safety valves;
  • Reduction of losses in hydraulic cylinders;
  • Modelling and development of heavy-duty machine hydraulic drives;
  • Modelling and development of manipulator and robot hydraulic drives;
  • Hydraulic drives of low-power and high-power press systems;
  • Thermal issues and heat flow.

Prof. Dr. Edward Lisowski
Dr. Filip Lisowski
Dr. Grzegorz Filo
Guest Editors

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 submissions that pass pre-check are 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. Applied Sciences is an international peer-reviewed open access semimonthly 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 2400 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.

Published Papers (2 papers)

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Research

21 pages, 12400 KiB  
Article
Estimation of the Wind Load Required to Cause the Overturning of a Gantry Crane, Comparing Different Structures of the Main Horizontal Girder
by Marcin Augustyn and Marek Barski
Appl. Sci. 2024, 14(3), 1092; https://doi.org/10.3390/app14031092 - 27 Jan 2024
Viewed by 684
Abstract
The present paper concerns the problem of estimating the loading induced by the wind on a gantry crane standing in the open air. Sufficiently strong wind may cause the device to move or even tip over. Two different structures were studied, namely the [...] Read more.
The present paper concerns the problem of estimating the loading induced by the wind on a gantry crane standing in the open air. Sufficiently strong wind may cause the device to move or even tip over. Two different structures were studied, namely the box girder and truss girder. At the very beginning, the two sectional scaled parts of the main horizontal beam (box and truss girder) of the gantry were prepared. Next, experimental analysis using these models was carried out in an aerodynamic tunnel to estimate the horizontal forces induced by the airflow acting on them. The experimental values of the aerodynamic forces were exploited to verify the 3D computational model of the studied structure. Numerical computations were carried out using the ANSYS Fluent 2022R2 system for both sectional models of the gantry crane mentioned above. The standard k-epsilon model of the turbulent flow of the air is employed. Satisfactory agreement of the values between the experimental and numerical results was achieved. As a result of the performed computations, the magnitude of the critical wind velocity that can be dangerous for the studied gantry cranes was estimated. Finally, a model of the gantry crane with box girder at full scale was analyzed using CFD simulations for different Davenport wind profiles. The results obtained from the experimental and numerical analysis of the sectional models were compared with the appropriate standards. In the current work, attention is drawn to the importance of changing wind direction in the vertical plane since, as shown in the results of this work, even a small change in vertical angle, up to 6°, causes significant changes in the value of the force required to overturn the gantry crane. Full article
(This article belongs to the Special Issue Industrial Applications of Computational Fluid Dynamics, Volume II)
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19 pages, 20531 KiB  
Article
Comparison of Single and Dual Coherent Blades for a Vertical Axis Carousel Wind Rotor Using CFD and Wind Tunnel Testing
by Marcin Augustyn and Filip Lisowski
Appl. Sci. 2023, 13(23), 12624; https://doi.org/10.3390/app132312624 - 23 Nov 2023
Viewed by 568
Abstract
This paper focused on the investigation of the blades for a carousel rotor of a wind turbine with a vertical axis. Cross sections of the single coherent (SC) and the dual coherent (DC) blades were compared in terms of the aerodynamic forces and [...] Read more.
This paper focused on the investigation of the blades for a carousel rotor of a wind turbine with a vertical axis. Cross sections of the single coherent (SC) and the dual coherent (DC) blades were compared in terms of the aerodynamic forces and aerodynamic torque generated during rotor operation for various wind attack angles. The design of the DC blade is novelty proposed by the authors. The main objective of the study was to determine the influence of the blade cross-section on the propelling torque of a wind turbine with three blades, which is an important parameter for rotor starting. First, experimental studies were carried out in a wind tunnel for real-size blade models. A CFD analysis of the airflow around the blades was then conducted. The obtained results were used to evaluate the suitability of applying the studied blade types in the design of the carousel wind rotor. The assessment compared the drag force and the lift force as well as aerodynamic torque as a function of a wind attack angle. It was concluded that the rotor with three DC blades involved mainly the drag force in contrast to the rotor with three SC blades that also involved the lift force to a greater extent. Despite the rotor with DC blades obtained greater values of the drag forces on the blades, the rotor with SC blades obtained a greater starting torque. Full article
(This article belongs to the Special Issue Industrial Applications of Computational Fluid Dynamics, Volume II)
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