Experimental Research and Numerical Simulations in Turbomachinery

A special issue of Processes (ISSN 2227-9717). This special issue belongs to the section "AI-Enabled Process Engineering".

Deadline for manuscript submissions: 30 September 2026 | Viewed by 460

Editors


E-Mail Website
Guest Editor
School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, China
Interests: turbomachinery; flow instability; numerical modelling; cavitation & multi-phase flows

E-Mail Website
Guest Editor
School of Metrology Measurement and Instrument, China Jiliang University, Hangzhou 310018, China
Interests: pumps; flow measurement and control; CFD; cavitation & multi-phase flows

Special Issue Information

Dear Colleagues,

Turbomachinery plays a critical role in various essential sectors of the national economy, including marine engineering, aerospace, pump storage technology, nuclear energy production, and so on. Throughout the operation of turbomachinery, the fluid dynamics often become highly turbulent, involving several unstable flow phenomena such as rotating stall, vortex rope, tip leakage cavitating flow, jet, and wake. These unstable flow patterns significantly impact the energy performance and operational stability in turbomachinery.

This Special Issue, “Experimental Research and Numerical Simulations in Turbomachinery”, particularly highlights advancements in the technologies, methods, and applications regarding the turbulent flow in turbomachinery. Original topics of interest include, but are not limited to, the following:

  • Unstable flow and its alleviation method in hydraulic pumps and turbines.
  • Tip leakage flow and rotating stall in gas/steam/supercritical carbon dioxide compressor and turbine.
  • Multiphase flow inside turbomachinery.
  • High-precision numerical simulation methods.
  • High-reliability experimental measurement technology.
  • Application of machine learning in flow prediction, design, and optimization of turbomachinery.

Dr. Weixiang Ye
Prof. Dr. Denghao Wu
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 250 words) can be sent to the Editorial Office for assessment.

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-anonymized peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Processes 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.

Keywords

  • (hydraulic) pump and turbine
  • (gas/steam/supercritical carbon dioxide) compressor and turbine
  • fans, blowers, and propellers
  • cavitation and multi-phase flows
  • design, optimization, and manufacturing
  • control, operation, monitoring, and diagnosis
  • AI, machine learning, and deep learning
  • computational fluid dynamics
  • measurement technology.

Benefits of Publishing in a Special Issue

  • Ease of navigation: Grouping papers by topic helps scholars navigate broad scope journals more efficiently.
  • Greater discoverability: Special Issues support the reach and impact of scientific research. Articles in Special Issues are more discoverable and cited more frequently.
  • Expansion of research network: Special Issues facilitate connections among authors, fostering scientific collaborations.
  • External promotion: Articles in Special Issues are often promoted through the journal's social media, increasing their visibility.
  • Reprint: MDPI Books provides the opportunity to republish successful Special Issues in book format, both online and in print.

Further information on MDPI's Special Issue policies can be found here.

Published Papers (1 paper)

Order results
Result details
Select all
Export citation of selected articles as:

Research

17 pages, 2747 KB  
Article
A Numerical Investigation of Inner Flow in a Turbine with Special Emphasis on Its Pressure and Velocity Distributions
by Yongbo Li, Zhi Zhang, Ke Liu, Huaiyu Cheng and Bin Ji
Processes 2026, 14(10), 1647; https://doi.org/10.3390/pr14101647 - 20 May 2026
Viewed by 248
Abstract
A three-dimensional numerical investigation is conducted to clarify the internal pressure and velocity distributions in a hydraulic turbine under multiple operating conditions. The study aims to identify the main high-gradient regions and the influence of operating parameters on the internal flow field. The [...] Read more.
A three-dimensional numerical investigation is conducted to clarify the internal pressure and velocity distributions in a hydraulic turbine under multiple operating conditions. The study aims to identify the main high-gradient regions and the influence of operating parameters on the internal flow field. The incompressible single-phase Navier–Stokes equations are solved using the SST k-ω turbulence model. Eleven operating conditions with different guide vane openings, net heads, output powers, and discharges are simulated using a full-passage turbine model with mass flow inlet and static pressure outlet boundary conditions. The numerical results are validated against experimental performance data. The results show that the pressure and velocity fields exhibit generally symmetric distributions in the circumferential and axial directions, whereas strong local gradients appear in the rotor–stator interaction region. Local high-pressure and high-velocity zones are mainly observed near the blade leading edges, while low-pressure and low-velocity regions develop near the trailing edges, runner cone, and draft tube. Increasing the net head raises the overall pressure and velocity levels and enhances the low-pressure and low-velocity regions in the draft tube. Under a fixed head, increasing the guide vane opening mainly affects the flow distribution around the stay and guide vanes and modifies the flow structure in the runner cone and draft tube. These findings provide a systematic numerical characterization of the pressure and velocity distributions in the turbine and help identify critical regions for further hydraulic performance analysis and flow field optimization. Full article
(This article belongs to the Special Issue Experimental Research and Numerical Simulations in Turbomachinery)
Show Figures

Figure 1

Back to TopTop