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Applied Sciences
Special Issues
Industrial Applications of Computational Fluid Dynamics
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Industrial Applications of Computational Fluid Dynamics

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

Deadline for manuscript submissions: closed (30 June 2023) | Viewed by 10184

Special Issue Editors

Prof. Dr. Edward Lisowski

E-Mail Website
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. Hassan Momeni

E-Mail Website
Guest Editor
Department of Mechanical and Marine Engineering, Western Norway University of Applied Sciences, N5020 Bergen, Norway
Interests: mechanical and marine engineering

Special Issue Information

Dear Colleagues,

Guest Editors have the honour to invite you to submit articles for the Special Issue of Applied Sciences in the field of computational fluid dynamics (CFD). The Special Issue is mainly focused on the industrial applications of CFD.

Hydraulic and pneumatic drives are widely used in vehicles, working machines, and various industrial devices. They enable obtaining large driving forces and moments and 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 development in this area is dynamic since there is a great industry demand for components with better characteristics, reduced flow losses, lowered leaks, and greater overall efficiency. When considering new solutions, two main research directions can be distinguished: studies on entire systems or development of individual components. In both cases, computational fluid dynamics methods can be used. Notably, the research using CFD may include 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 the industry.

The Special Issue is mainly 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 of pulsation in 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. Hassan Momeni
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 (8 papers)

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Editorial

Jump to: Research

3 pages, 666 KiB  
Editorial
Special Issue on Industrial Applications of Computational Fluid Dynamics
by Edward Lisowski and Grzegorz Filo
Appl. Sci. 2023, 13(19), 10971; https://0-doi-org.brum.beds.ac.uk/10.3390/app131910971 - 05 Oct 2023
Viewed by 608
Abstract
The CFD (Computational Fluid Dynamics) method can be used in various areas that concern almost every field of technology, including water bodies, air spaces, as well as technical devices and machines [...] Full article
(This article belongs to the Special Issue Industrial Applications of Computational Fluid Dynamics)

Research

Jump to: Editorial

16 pages, 6123 KiB  
Article
Experimental and Numerical Study of the Performance of an Open-Type Multi-Deck Refrigerated Cabinet with Single and Dual Air Curtain
by Tadas Vengalis and Vadim Mokšin
Appl. Sci. 2023, 13(16), 9080; https://0-doi-org.brum.beds.ac.uk/10.3390/app13169080 - 09 Aug 2023
Cited by 1 | Viewed by 917
Abstract
This study utilizes a simplified two-dimensional time-dependent computational fluid dynamic (CFD) model to compare the performance of single- and two-layer air curtains in an open-type multi-deck refrigerated display cabinet. Two layers of air curtain generate a more effective invisible barrier from ambient air [...] Read more.
This study utilizes a simplified two-dimensional time-dependent computational fluid dynamic (CFD) model to compare the performance of single- and two-layer air curtains in an open-type multi-deck refrigerated display cabinet. Two layers of air curtain generate a more effective invisible barrier from ambient air impact that can reduce electrical energy consumption and maintain a uniform temperature distribution within the cabinet. The CFD model of a refrigerated display cabinet was validated by the experimental data. The results showed a two-layer air curtain advantage over a single air curtain. Electrical energy consumption decreased by 18.5%, and the average temperature of the test products decreased from 5.75 °C to 5.17 °C. The results obtained are important for cabinet design to improve the quality of product storage and reduce energy consumption. Full article
(This article belongs to the Special Issue Industrial Applications of Computational Fluid Dynamics)
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17 pages, 6486 KiB  
Article
Flow Analysis of a Novel, Three-Way Cartridge Flow Control Valve
by Edward Lisowski, Grzegorz Filo, Piotr Pluskowski and Janusz Rajda
Appl. Sci. 2023, 13(6), 3719; https://0-doi-org.brum.beds.ac.uk/10.3390/app13063719 - 14 Mar 2023
Cited by 2 | Viewed by 1560
Abstract
Flow control valves are designed to maintain a constant flow rate regardless of pressure changes. However, standard, two-way design may cause significant energy losses due to the need to maintain high pressure in the supply line. In contrast, the proposed three-way valve allows [...] Read more.
Flow control valves are designed to maintain a constant flow rate regardless of pressure changes. However, standard, two-way design may cause significant energy losses due to the need to maintain high pressure in the supply line. In contrast, the proposed three-way valve allows the required flow rate to be obtained at a supply pressure slightly above the loading pressure. This work included building mathematical and simulation models, conducting numerical simulations in Ansys/Fluent and Matlab/Simulink environments, and verifying the results by initial test bench experiments on a valve prototype. The main contribution provided by the work concerns the proposal of a new valve solution and the estimation of its operational characteristics. Full article
(This article belongs to the Special Issue Industrial Applications of Computational Fluid Dynamics)
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17 pages, 7208 KiB  
Article
Demand Law of Fabric Weight on the Airflow Velocity of a Gas-Assisted Model
by Yu Zhu, Jianzhou Zhai, Hongjun Ni and Xingxing Wang
Appl. Sci. 2023, 13(2), 912; https://0-doi-org.brum.beds.ac.uk/10.3390/app13020912 - 09 Jan 2023
Cited by 1 | Viewed by 1048
Abstract
This research takes as its basis the engineering requirement that the cloth conveyed by a cloth-feeding mechanism moves forward for a certain distance in a balanced and stable manner; therefore, a scheme for the air-assisted conveyance of fabric is designed. The traditional fabric-conveying [...] Read more.
This research takes as its basis the engineering requirement that the cloth conveyed by a cloth-feeding mechanism moves forward for a certain distance in a balanced and stable manner; therefore, a scheme for the air-assisted conveyance of fabric is designed. The traditional fabric-conveying mechanism occupies a large space, consumes a lot of energy, and the conveying is unstable, As a new type of conveying method, the technology of using a gas-assisted device to convey fabric has emerged rapidly due to its extensive application range, and the fact that it produces no pollution and zero emissions. By establishing the mathematical model of the balance between the upper and lower surfaces of conveyed fabric, the Creo flow analysis module is used to simulate and analyze the surface pressure distribution of conveyed fabric. The purpose is to analyze the influence of fabrics with different weights on the airflow velocity in the pipeline when the fabric is conveyed in a balanced state and to determine the layout scheme of the air supply pipeline, as well as the configuration law of the airflow velocity in the pipeline. The research results demonstrate that the constructed air-assisted conveying mechanism model is able to realize the smooth lifting and forward conveying of different fabrics, The fabric with a density of 60 g/cm² has been smoothly suspended and transported forward for 200 mm, and the regularity can be obtained by comparing the weight of 30–80 g/cm² different fabrics. As the weight of the fabric increases, the flow rate in each row of pipes and the total flow rate of the air compressor also show an upward trend, forming a certain linear law, providing a reference for the development of the next-generation home-textile kit, which has three-sided automatic sewing and an integrated cutting device. Full article
(This article belongs to the Special Issue Industrial Applications of Computational Fluid Dynamics)
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26 pages, 9680 KiB  
Article
Comprehensive Investigations on Fluid Flow and Cavitation Characteristics in Rotating Disk System
by Junyu Sun, Liyu Chen, Hua Huang, Bing Zhang and Pengfei Qian
Appl. Sci. 2022, 12(23), 12303; https://0-doi-org.brum.beds.ac.uk/10.3390/app122312303 - 01 Dec 2022
Cited by 2 | Viewed by 1177
Abstract
The present work numerically investigates the flow behavior of Newtonian fluid between rotating disk systems. Rotating disk flow is an embranchment of fundamental flow research, which forms the theoretical basis for the flow media in many disk-type hydraulic machinery, and has been widely [...] Read more.
The present work numerically investigates the flow behavior of Newtonian fluid between rotating disk systems. Rotating disk flow is an embranchment of fundamental flow research, which forms the theoretical basis for the flow media in many disk-type hydraulic machinery, and has been widely applied in energy, aerospace, vehicles, medical, and chemical areas. The Reynolds equation model of the rotating disk flow is established based on a series of assumptions, and considers the characteristics of hexahedral surface textures on the friction disk, and the control equation is dimensionless. The velocity, pressure, and pressure coefficient in oil film are solved by finite difference algorithm, and the shear cavitation incipient position is predicted. Graphical visualization and numerical data about cavitation characteristics are also presented. Furthermore, the cavitation process is researched in CFX and the experiment, eventually verifying the correctness of the numerical analysis. The pressure perturbation caused by texture boundaries and the low pressure at the vortex center induce the initial generation of cavitation, and cavitation effect can obviously enhance lubricating performance. The cavitation region extends from micro-dimples towards non-textured region when texture rate increases. This study can guide design of surface structures such as mechanical seals, wet clutches, and disk turbines. Full article
(This article belongs to the Special Issue Industrial Applications of Computational Fluid Dynamics)
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12 pages, 9053 KiB  
Article
Determination of Aerodynamic Drag Coefficients of Longitudinal Finned Tubes of LNG Ambient Air Vaporizers Using CFD and Experimental Methods
by Filip Lisowski and Edward Lisowski
Appl. Sci. 2022, 12(21), 10865; https://0-doi-org.brum.beds.ac.uk/10.3390/app122110865 - 26 Oct 2022
Cited by 4 | Viewed by 1468
Abstract
This paper presents the results of numerical and experimental studies of wind action on longitudinal finned tubes of LNG ambient air vaporizers. The main objective of the study was to determine the aerodynamic drag coefficients for longitudinal finned tubes with different number of [...] Read more.
This paper presents the results of numerical and experimental studies of wind action on longitudinal finned tubes of LNG ambient air vaporizers. The main objective of the study was to determine the aerodynamic drag coefficients for longitudinal finned tubes with different number of fins considering various directions of wind action. Numerical calculations were performed using CFD analysis, while experimental tests were carried out in a wind tunnel test stand. The obtained results indicate the variation of tube loads depending on the number of fins and the direction of wind action and can be used in the design of ambient air vaporizers. Full article
(This article belongs to the Special Issue Industrial Applications of Computational Fluid Dynamics)
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16 pages, 3517 KiB  
Article
CFD Estimation of a Resistance Coefficient for an Egg-Shaped Geometric Dome
by Mariusz Domagala, Halvor Larsson Aga, Saeed Bikass, Hassan Momeni and Gloria Stenfelt
Appl. Sci. 2022, 12(21), 10780; https://0-doi-org.brum.beds.ac.uk/10.3390/app122110780 - 25 Oct 2022
Cited by 8 | Viewed by 1213
Abstract
In aquaculture, new production technologies are under development and testing. One promising type of technology is the closed floating cage. Egget® is one of these newly developed technologies, which is egg-shaped and vertically floating. One of the challenges is to determine hydrodynamic [...] Read more.
In aquaculture, new production technologies are under development and testing. One promising type of technology is the closed floating cage. Egget® is one of these newly developed technologies, which is egg-shaped and vertically floating. One of the challenges is to determine hydrodynamic loads. Therefore, this study focuses on estimating the resistance and the resistance coefficient for steady flow with various velocities and Reynolds numbers on a scaled model. It includes simulations using Computational Fluid Dynamics (CFD) for two depths and experiments in the MarinLab at Western Norway University of Applied Sciences (HVL). As the cage is partially submerged, the simulations are performed using the Volume of Fluid (VOF) technique for modeling free surface flow. The comparison of experimental and simulation results show good agreement. Full article
(This article belongs to the Special Issue Industrial Applications of Computational Fluid Dynamics)
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16 pages, 3316 KiB  
Article
Numerical Analysis of Fluid Stream Division to Supply Multiple Hydraulic Receivers
by Grzegorz Filo and Edward Lisowski
Appl. Sci. 2022, 12(20), 10327; https://0-doi-org.brum.beds.ac.uk/10.3390/app122010327 - 13 Oct 2022
Cited by 3 | Viewed by 1172
Abstract
This article presents a proposal and a numerical analysis of a hydraulic system consisting of one constant capacity pump supplying multiple receivers in the form of hydraulic motors, based on the example of a rail grinder. The proposed approach requires splitting the stream [...] Read more.
This article presents a proposal and a numerical analysis of a hydraulic system consisting of one constant capacity pump supplying multiple receivers in the form of hydraulic motors, based on the example of a rail grinder. The proposed approach requires splitting the stream of the working fluid, which was achieved using 2-way flow control valves. As part of the preliminary CFD studies, the pressure and velocity distributions of the flow control valve were obtained, and the discharge coefficient of the valve nozzles was determined as a function of the valve spool position. Then, a mathematical model of the system was formulated, which was used to build a simulation model in the Matlab/Simulink environment. Next, the ability of the system to achieve the assumed operating parameters and its energy efficiency in a given load range were tested. The results indicate that the system can effectively perform the required work cycles with sufficient accuracy. Full article
(This article belongs to the Special Issue Industrial Applications of Computational Fluid Dynamics)
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