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Pipeline Fluid Mechanics 2020
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Pipeline Fluid Mechanics 2020

A special issue of Water (ISSN 2073-4441). This special issue belongs to the section "Hydraulics and Hydrodynamics".

Deadline for manuscript submissions: closed (28 February 2021) | Viewed by 17410

Special Issue Editor

Dr. Mostafa Safdari Shadloo

E-Mail Website
Guest Editor
CORIA-UMR 6614—Normandie University, CNRS University and INSA of Rouen, 76000 Rouen, France
Interests: computational fluid dynamics (CFD); high-performance computing (HPC); multiphase flows; transitional flow; turbulent flow
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The fluid flow dynamics through a pipe is a basic fluid mechanics problem, which occurs in many industrial applications. This basic geometry is not only found in the transportation of goods and/or materials, such as oil, gas, and water, but also used as a building block to model more complex flows, such as those in teleheating systems, heat exchangers, mixing chambers, product changeover, as well as in biomedical applications. Though simple in geometries, they possess very fundamental yet complex fluid flow physics with practical importance.

For instance, for internal flow in pipes, a curvature may cause a dean flow, and/or with internal perturbation/friction, the flow may undergo laminar to turbulent transition. This significantly alters the pressure head loss, mixing, as well as wall heat transfer. Alternatively, a multiphase or an aggressive fluid flow inside a pipe may cause fluid-induced vibration and/or corrosion, pipe failure, and, as a consequence, an environmental hazard. Flow around the pipelines may also cause vortex-induced vibrations and affect other nearby pipes and infrastructure.

This Special Issue is dedicated to different fundamental aspects of “Pipeline Fluid Mechanics” along with their applications to engineering problems. The current Special Issue invites all original experimental, statistical, analytical and computational fluid dynamic research works in the field. This research topic also welcomes related novel inter-/multidisciplinary works in the emerging areas of mechanical, chemical, process, and energy engineering. 

Prof. Dr. Mostafa Safdari Shadloo
Guest Editor

Manuscript Submission Information

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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. Water 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 2600 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.

Keywords

  • Pipeline engineering
  • Pipeline fluid transport
  • Fluid-induced vibration (FIV)
  • Vortex-induced vibration (VIV)
  • Multiphase flow
  • Offshore engineering
  • Flow hydrodynamics
  • Pipeline slug flow and fatigue
  • Pipeline heat transfer
  • Waste and hazard prevention

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Published Papers (3 papers)

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Research

22 pages, 7387 KiB  
Article
Analysis of Fluid–Structure Coupling Vibration Mechanism for Subsea Tree Pipeline Combined with Fluent and Ansys Workbench
by Gongxing Wu, Xiaolong Zhao, Danda Shi and Xiaodong Wu
Water 2021, 13(7), 955; https://doi.org/10.3390/w13070955 - 31 Mar 2021
Cited by 10 | Viewed by 6930
Abstract
In the process of oil exploitation, subseatrees sometimes vibrate. In this paper, fluid–structure coupling software was used to study the causes of subsea tree vibration. First, the complex subsea tree model was simplified, and ageometric grid model was established for software calculation. Then, [...] Read more.
In the process of oil exploitation, subseatrees sometimes vibrate. In this paper, fluid–structure coupling software was used to study the causes of subsea tree vibration. First, the complex subsea tree model was simplified, and ageometric grid model was established for software calculation. Then, under the given two working conditions, the software Fluent was used to analyze the pressure and velocity distribution of the subsea tree pipeline’s flow field. It was found that the pressure of the flow field changed greatly at the variable diameter and right-angles. Using Ansys Workbench software, flow-structure coupling calculations and modal analysis of the subsea tree were carried out. The results showed that the vibration of the long straight pipeline section was severe. Finally, the paper puts forward the measures to reduce the vibration of subsea tree pipelines and provides construction advice for the safe production of subsea trees. Full article
(This article belongs to the Special Issue Pipeline Fluid Mechanics 2020)
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17 pages, 3583 KiB  
Article
Exergy Optimization of a Solar Collector in Flat Plate Shape Equipped with Elliptical Pipes Filled with Turbulent Nanofluid Flow: A Study for Thermal Management
by Sara Rostami, Mohammad Sepehrirad, Amin Dezfulizadeh, Ahmed Kadhim Hussein, Aysan Shahsavar Goldanlou and Mostafa Safdari Shadloo
Water 2020, 12(8), 2294; https://doi.org/10.3390/w12082294 - 14 Aug 2020
Cited by 66 | Viewed by 5538
Abstract
In this paper, forced convection of a multiwalled carbon nanotube (MWCNT)–water nanofluid (NF) in a new flat plate solar collector (FPSC) equipped with elliptical pipes instead of circular ones is investigated. The three-dimensional conservation equations were solved in the domain with the finite [...] Read more.
In this paper, forced convection of a multiwalled carbon nanotube (MWCNT)–water nanofluid (NF) in a new flat plate solar collector (FPSC) equipped with elliptical pipes instead of circular ones is investigated. The three-dimensional conservation equations were solved in the domain with the finite volume method (FVM) based on the semi-implicit method for pressure linked equations (SIMPLE) algorithm. The laminar-turbulent range of the Reynolds number (Re) and the volume fraction of the NF (ϕ) were 50–12,000 and 0–0.1, respectively. The optimization process was accomplished through the comparison of diverse parameters to attain the optimal case with the highest exergy efficiency. In this study, it was concluded that, in the case of using elliptical pipes instead of circular tubes, the time that the fluid was inside the FPSC increased, which led to an increase in the outlet temperature, while the exergy efficiency of the FPSC increased. Additionally, it was observed that using elliptical pipes enhanced the outlet fluid temperature, energy efficiency, and exergy efficiency. Generally, while the trend of exergy efficiency variation with effective parameters was rising, applying elliptical pipes caused the efficiency to increase. In addition, the exergy efficiency variation decreased when these parameters were changed. The highest value of exergy efficiency was 7.1%. On the other hand, for each specific FPSC, there was a unique mass flow rate at which the exergy efficiency reached its maximum value, and for higher mass flow rates, the efficiency was slightly diminished and then remained unchanged. Finally, the highest exergy efficiency was achieved for ϕ = 0.10%. Full article
(This article belongs to the Special Issue Pipeline Fluid Mechanics 2020)
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22 pages, 7649 KiB  
Article
Mixed Convection in MHD Water-Based Molybdenum Disulfide-Graphene Oxide Hybrid Nanofluid through an Upright Cylinder with Shape Factor
by Yu-Ming Chu, Kottakkaran Sooppy Nisar, Umair Khan, Hamed Daei Kasmaei, Manuel Malaver, Aurang Zaib and Ilyas Khan
Water 2020, 12(6), 1723; https://doi.org/10.3390/w12061723 - 17 Jun 2020
Cited by 57 | Viewed by 3694
Abstract
In this work, water is captured as regular fluid with suspension of two types of hybrid nanoparticles, namely molybdenumdisulfide (MoS2) and graphene oxide (GO). The impact of Lorentz’s forces on mixed convective boundary-layer flow (BLF) is studied through an upright cylinder [...] Read more.
In this work, water is captured as regular fluid with suspension of two types of hybrid nanoparticles, namely molybdenumdisulfide (MoS2) and graphene oxide (GO). The impact of Lorentz’s forces on mixed convective boundary-layer flow (BLF) is studied through an upright cylinder under the influences of thermal radiation. The shape factor is also assessed. The mathematical model for hybrid nanofluidis developed and, by implementing suitable similarity variables, the leading partial differential equations (PDEs) are altered into a non-linear ordinary differential equations (ODEs) system and then resolved through a bvp4c solver. The penetrations of varied parameters, such as thermal radiation, nanomaterials shapes (bricks, platelets, bricks and cylinders), magneto-hydrodynamics (MHD), and ratio parameters on the temperature and fluid velocity, along with the skin friction and the Nusselt number, are typified qualitatively via sketches. The opposing flow, as well as the assisting flow, is considered. The results indicate that the impact of hybrid nanofluid (HBNF) on the velocity and the temperature is more than nanofluid (NF). It is also scrutinized that the blade-shaped nanomaterials of hybrid nanofluid have a maximum temperature and brick-shaped nanomaterials have a low temperature. In addition, the friction factor and the heat transport rate decline due to the magnetic parameter and increase due to the shape factor. Moreover, the radiation uplifts the velocity and temperature, while the free stream Reynolds number declines the velocity and temperature. Finally, a comparison with available results in the literature are made and found in an excellent way. The ranges of constraints in this research are considered as: 0.01 ≤ λ ≤ 0.2 , 0 ≤ M ≤ 4 , 0 ≤ α ≤ 1.5 , 0 ≤ R d ≤ 1 , 1 ≤ Re a ≤ 3 , 0 ≤ ϕ 1 ≤ 0.1 and 0 ≤ ϕ 2 ≤ 0.003 . Full article
(This article belongs to the Special Issue Pipeline Fluid Mechanics 2020)
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