Search for Articles:
Title / Keyword
Author / Affiliation / Email
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 
6.2
3.0
Journals
Energies
Special Issues
Recent Studies on Fluid Dynamics Applied in Energy Systems
energies-logo
Submit to Energies Review for Energies Propose a Special Issue

Journal Menu

► Journal Menu

Journal Browser

► Journal Browser
share announcement

Recent Studies on Fluid Dynamics Applied in Energy Systems

A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "I: Energy Fundamentals and Conversion".

Deadline for manuscript submissions: closed (25 July 2023) | Viewed by 4037

Special Issue Editors

Dr. Wenwu Zhang

E-Mail Website
Guest Editor
College of Water Resources and Civil Engineering, China Agricultural University, Beijing 100083, China
Interests: energy technology; fluid machinery; computational fluid dynamic; multipahse flow
Dr. Jiaxing Lu

E-Mail Website
Guest Editor
Key Laboratory of Fluid and Power Machinery, Ministry of Education, Xihua University. No.999 Jinzhou Road, Jinniu District, Chengdu, China
Interests: hydraulic turbine; pump; cavitation; flow instability; experimental technology; multiphase flow
Dr. Zhenmu Chen

E-Mail Website
Guest Editor
College of Mechanical and Electrical Engineering, Wenzhou University, Wenzhou 325200, China
Interests: turbomachinery; hydroturbine; rotating machinery; renewable energy
Dr. Yaguang Heng

E-Mail Website
Guest Editor
Key Laboratory of Fluid Machinery and Engineering, Xihua University, No.9999 Hongguang Avenue, Pidu District, Chengdu, China
Interests: turbomachinery; pump; compressor; multiphase flow; two-phase flow; flow instability

Special Issue Information

Dear Colleagues,

The innovation of the energy system is closely related to the rapid development of fluid dynamics. Fluid dynamics is applied everywhere in energy systems, not only in the traditional energy systems of application but also in renewable energy systems, including pumped storage, hydrogen energy, biomass energy, wind energy, etc. Moreover, the development of fluid dynamics ensures the safe and economical operation of the energy system. Ensuring the efficient operation of energy systems by transporting the fluid media is always the focus of attention.

This Special Issue aims to present and disseminate the latest significant advances related to the fluid dynamics applied in energy systems.

Topics of interest for publication include, but are not limited to:

  • Traditional energy systems;
  • Renewable energy systems;
  • Energy storage systems;
  • Fluid dynamics applications.

Dr. Wenwu Zhang
Dr. Jiaxing Lu
Dr. Zhenmu Chen
Dr. Yaguang Heng
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. Energies 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

  • energy system design
  • energy conversion
  • pumped-storage plant
  • fluid machinery
  • single-phase and multiphase flows
  • computational fluid dynamics (CFDs)
  • experimental technology

Published Papers (3 papers)

Download All Papers
Order results
Result details
Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:

Research

Jump to: Review

26 pages, 11441 KiB  
Article
A Study of Passenger Car Cabin Pre-Ventilation under the Sun
by Yingchao Zhang, Ziqiao Li, Shengda Liu, Guohua Wang and He Chang
Energies 2023, 16(20), 7154; https://doi.org/10.3390/en16207154 - 19 Oct 2023
Cited by 1 | Viewed by 1456
Abstract
With the increasing intelligence of automobiles, vehicle pre-ventilation can be better controlled. In summer, cars parked in the open air are directly exposed to sunlight; thus, a high-temperature environment is formed in the occupant cabin, which seriously affects the passengers and driver’s riding [...] Read more.
With the increasing intelligence of automobiles, vehicle pre-ventilation can be better controlled. In summer, cars parked in the open air are directly exposed to sunlight; thus, a high-temperature environment is formed in the occupant cabin, which seriously affects the passengers and driver’s riding and driving experience. Meanwhile, lowering the temperature of the passenger compartment from a very high temperature to a comfortable temperature consumes a lot of energy. Therefore, it is increasingly important to study the pre-ventilation of the cabin in order to improve the thermal comfort of the occupant cabin and reduce energy consumption. In this paper, a new theoretical model of a cabin temperature control system is proposed. To support the theoretical model, an outdoor parking temperature rise test was carried out. Environmental parameters were obtained and used as the boundary conditions of the subsequent simulation. Based on the mechanism of the cabin temperature rise, the convective heat transfer coefficient on the body surface, the equivalent heat transfer model of the cabin, the solar radiation model and the physical properties of the air, a computational simulation of the temperature rise in the occupant cabin was carried out, and a simulation of the temperature rise in the occupant cabin exposure was studied. The simulation results were compared with the experimental findings to verify the accuracy of the simulation, which provided a reference for the design of the pre-cooling function of the occupant cabin. This study revealed that the pre-ventilation model developed reduces the vehicle cabin temperature through optimal control of air supply volumes and air supply angles. Furthermore, the developed pre-ventilation model is capable of reducing energy consumption, thereby reducing greenhouse gas emissions. Full article
(This article belongs to the Special Issue Recent Studies on Fluid Dynamics Applied in Energy Systems)
►▼ Show Figures

Figure 1

21 pages, 9535 KiB  
Article
Numerical Investigation on the Transition Flow around NLF Airfoil
by Hongbiao Wang, Lei Tan, Ming Liu, Xiang Liu and Baoshan Zhu
Energies 2023, 16(4), 1826; https://doi.org/10.3390/en16041826 - 12 Feb 2023
Cited by 2 | Viewed by 1120
Abstract
A natural laminar flow (NLF) airfoil is designed to reduce drag by expanding laminar flow areas. In-depth knowledge of transition performance is essential for its aerodynamic design. The k-ω-γ-Reθ framework, which consists of the SST k- [...] Read more.
A natural laminar flow (NLF) airfoil is designed to reduce drag by expanding laminar flow areas. In-depth knowledge of transition performance is essential for its aerodynamic design. The k-ω-γ-Reθ framework, which consists of the SST k-ω turbulence model and γ-Reθ transition model, is employed to simulate transitional flows around an NLF wing RAE5243 airfoil. The transition performances of the RAE5243 airfoil under various values of turbulent intensity, temperature, angle of attack, and Mach number are simulated and compared. The results show that the rise of inflow turbulent intensity will promote an earlier transition on both the suction and pressure sides. The influence of wall temperature on transition is limited. The rise of angle of attack will lead to an earlier transition on the pressure side but a later transition on the suction side. With the rise of Mach number, the transition happens earlier under a zero and positive angle of attack but later under a negative angle of attack. In addition, the correlation of transition onset locations with respect to turbulent intensity, surface temperature, angle of attack, and Mach number is established based on numerical results. Full article
(This article belongs to the Special Issue Recent Studies on Fluid Dynamics Applied in Energy Systems)
►▼ Show Figures

Figure 1

Review

Jump to: Research

24 pages, 3733 KiB  
Review
Studies on Flow Characteristics of Gas–Liquid Multiphase Pumps Applied in Petroleum Transportation Engineering—A Review
by Huichuang Li, Wenwu Zhang, Liwei Hu, Baoshan Zhu and Fujun Wang
Energies 2023, 16(17), 6292; https://doi.org/10.3390/en16176292 - 29 Aug 2023
Cited by 1 | Viewed by 1085
Abstract
Flow and phase separation in gas–liquid multiphase pumps is easy to occur, which deteriorates their performance and mixed transportability. Many research achievements have been made in the experiment, CFD simulation and performance improvement of multiphase pumps. However, there are many challenges for the [...] Read more.
Flow and phase separation in gas–liquid multiphase pumps is easy to occur, which deteriorates their performance and mixed transportability. Many research achievements have been made in the experiment, CFD simulation and performance improvement of multiphase pumps. However, there are many challenges for the test technology, accurate numerical model development and gas–liquid flow control. This paper is mainly aimed at critically reviewing various technologies for experimental observation, flow calculation and analysis, and the optimization design of gas–liquid multiphase pumps. In this regard, the experimental results including the energy performance, flow pattern and bubble movement in the multiphase pump are presented in detail. Discussions on the turbulence model, multiphase flow model and bubble balance model are carried out for the flow prediction in such pumps. Various numerical results are presented, including energy performance, bubble distribution, vorticity, phase interaction and pressure fluctuation. Moreover, the flow control and optimization strategy are briefly introduced. Having carried out an extensive literature review of flow characteristics in multiphase pumps, the deficiencies of relevant fields and suggestions for future research direction are given. Full article
(This article belongs to the Special Issue Recent Studies on Fluid Dynamics Applied in Energy Systems)
►▼ Show Figures

Figure 1

Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:
 
Displaying articles 1-3
Back to TopTop