Machine Science and Research in Jiangsu University: Celebrating the 60th Anniversary of the Research Center of Fluid Machinery Engineering and Technology

A special issue of Machines (ISSN 2075-1702). This special issue belongs to the section "Electromechanical Energy Conversion Systems".

Deadline for manuscript submissions: closed (31 July 2023) | Viewed by 1557

Special Issue Editors


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Guest Editor
Research Center of Fluid Machinery Engineering and Technology, Jiangsu University, Zhenjiang, China
Interests: flow-induced vibration and noise of rotating machinery; multiphase flow in fluid engineering; pump hydraulic design and energy-saving mechanism research
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Guest Editor
Director of Research Center of Fluid Machinery Engineering and Technology, Jiangsu University, Zhenjiang, China
Interests: theory of unstable flow in fluid machinery; development of special fluid machinery

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Guest Editor
College of Hydraulic Science and Engineering, Yangzhou University, Yangzhou, China
Interests: fluid machinery; optimization design of pumps; internal flow theory of pumps; interference mechanism of jet and rotating fluid
Special Issues, Collections and Topics in MDPI journals

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Guest Editor
Arts et Métiers, Lille Fluid Mechanics Laboratory, Lille, France
Interests: fluid dynamics; numerical methods and dynamical systems

Special Issue Information

Dear Colleagues,

To celebrate the 60th Anniversary of the Research Center of Fluid Machinery Engineering and Technology, Jiangsu University, we plan to launch this anniversary Special Issue on the latest status of theoretical analysis, numerical simulation, and experimental studies of advanced fluid machinery.

Papers containing theoretical innovation and practical experimental results are particularly encouraged. This Special Issue will cover a wide range of disciplines as follows:

  • Optimization of advanced fluid machinery using different advanced algorithms;
  • Flow characteristics of advanced fluid machinery using numerical and experimental methods;
  • Vibration and noise of advanced fluid machinery;
  • Fluid–structural coupling analysis of advanced fluid machinery;
  • Transient characteristics of fluid machinery in operation;
  • Cavitation and multi-phase flow of advanced fluid machinery;
  • New energy systems, simulation, and optimization;
  • Other aspects on fluid machinery.

We welcome you to send a short abstract for feature paper submissions to the Editorial Office (machines@mdpi.com) before the formal submission of your manuscript. 

Prof. Dr. Qiaorui Si
Prof. Dr. Jiangping Yuan
Prof. Dr. Chuan Wang
Dr. Francesco Romanò
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. Machines is an international peer-reviewed open access monthly 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 (1 paper)

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16 pages, 6667 KiB  
Article
Simulation and Field Studies on an Innovative Downhole Machine Designed for Ultrashort-Radius Horizontal Well Drilling Engineering
by Chenglong Li, Zongtao Chen, Zenglin Wang, Qizhong Tian, Rongdong Dai and Kun Wang
Machines 2023, 11(2), 139; https://doi.org/10.3390/machines11020139 - 19 Jan 2023
Viewed by 1236
Abstract
Ultrashort-Radius Horizontal Well (URHW) drilling engineering plays an important role in increasing the recovery factor of old oilfields. By sidetracking old wellbores at a very high build-up rate, the URHW can effectively exploit the residual oil near old wellbores. Currently, the main problem [...] Read more.
Ultrashort-Radius Horizontal Well (URHW) drilling engineering plays an important role in increasing the recovery factor of old oilfields. By sidetracking old wellbores at a very high build-up rate, the URHW can effectively exploit the residual oil near old wellbores. Currently, the main problem faced in URHW drilling engineering is the reduced torque received by drill bits owing to the increased friction between the flexible drilling assembly and wellbore as the horizontal section extends, which greatly limits oil production from a single trip. To tackle this problem, we proposed an innovative machine design, a Dynamic Flexible Drill Rod (DFDR), to provide extra torque near the drill bit to extend the horizontal section of the URHW. The interior structure and working principle of the DFDR were illustrated. The mechanical properties of the DFDRs critical load-bearing part were examined via simulation. The torque and pressure loss characteristics were analyzed using computational fluid dynamics. Corresponding modifications were made to optimize the design, with model machines produced accordingly. Field trials were carried out based on old wellbores in Chunliang District, Shengli Oilfield. The DFDR-based technique extended the URHWs horizontal section in this area by 13.38% on average. Full article
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