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Processes
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Fluid Dynamics and Thermodynamic Studies in Gas Turbine
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Fluid Dynamics and Thermodynamic Studies in Gas Turbine

A special issue of Processes (ISSN 2227-9717). This special issue belongs to the section "Energy Systems".

Deadline for manuscript submissions: 28 February 2026 | Viewed by 758

Special Issue Editors

Dr. Juan C. García Castrejón

E-Mail Website
Guest Editor
Centro de Investigación en Ingeniería y Ciencias Aplicadas, Universidad Autónoma del Estado de Morelos, Cuernavaca 62209, Mexico
Interests: turbomachinery design; thermodynamics and heat transfer; mechanical vibrations; failure analysis for turbomachines; CFD and FEM applied to turbomachines; renewable energy
Dr. Laura Lilia Castro Gomez

E-Mail Website
Guest Editor
Centro de Investigación en Ingeniería y Ciencias Aplicadas, Universidad Autónoma del Estado de Morelos, Cuernavaca 62209, Mexico
Interests: power plants; numerical simulation; heat transfer; power generation; renewable energy technologies; engineering thermodynamics; computational fluid dynamics; turbomachinery

Special Issue Information

Dear Colleagues,

We are pleased to introduce this Special Issue, “Fluid Dynamics and Thermodynamic Studies in Gas Turbine”. These devices have the principal function of converting the energy stored in a fuel into mechanical work to drive machinery or to produce electricity. Gas turbine research related to improving efficiency, emission reduction, cooling blade technologies, cogeneration, and post-combustion CO2 capture, among others, could contribute to reducing CO2 emissions.

This Special Issue aims to collect recent and original contributions on advances in fluid dynamics and thermodynamic studies in gas turbines. Some topics included are the following:

  • Computational fluid dynamics (CFD) analysis;
  • Fluid structure interaction studies;
  • NOx emission investigation
  • Thermodynamic, economic, or optimization studies;
  • Advances in thermodynamics cycle for gas turbines;
  • Advances in design and control;
  • Thermodynamic or aerodynamic loss estimation;
  • Costs and life cycle assessment;
  • Failure analysis;
  • Noise control and environmental impact;
  • Predictive maintenance and damage detection in gas turbines;
  • Cogeneration analysis or gas turbines integrated with post-combustion CO2 capture technologies.

Dr. Juan C. García Castrejón
Dr. Laura Lilia Castro Gomez
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. Processes 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.

 

Keywords

  • CFD
  • FEM
  • thermodynamics
  • cooling blades
  • heat transfer
  • optimization
  • NOx
  • CO2 capture

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Published Papers (3 papers)

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Research

18 pages, 3062 KB  
Article
AMT Microjets Data Overall Evaluation Ratio at Different Operating Regimes
by Răzvan Marius Catană and Grigore Cican
Processes 2025, 13(10), 3200; https://doi.org/10.3390/pr13103200 (registering DOI) - 8 Oct 2025
Abstract
The paper presents a comprehensive evaluation of certain main parameters and the performance of microjet series models from the same engine manufacturer, AMT Netherlands, under various operating regimes. The study was performed through a percentage-based analysis of a series of actual values extracted [...] Read more.
The paper presents a comprehensive evaluation of certain main parameters and the performance of microjet series models from the same engine manufacturer, AMT Netherlands, under various operating regimes. The study was performed through a percentage-based analysis of a series of actual values extracted from a set of charts, from which a specific database was created. The database comprised data sourced from official specification sheets issued by the manufacturer. The studied engines shared the same technical turbomachinery design, comprising a single shaft, one centrifugal compressor rotor, one axial turbine rotor stage, and a convergent jet nozzle, but differed in thrust class, ranging from 167 to 1569 N. Parameter and performance ratios were calculated to analyze the variation patterns within each engine and across different engines. The study refers to the variation analysis of thrust, fuel flow, exhaust gas temperature, and specific fuel consumption relative to engine speed, from idle to maximum regime. It presents the actual percentage values alongside polynomial functions that characterize the variations in engine parameters through which the analysis can be conducted. Full article
(This article belongs to the Special Issue Fluid Dynamics and Thermodynamic Studies in Gas Turbine)
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21 pages, 1424 KB  
Article
Improving Combined Cycle Performance with Pressure Gain Combustion in the Gas Turbine
by Antonio Giuffrida and Paolo Chiesa
Processes 2025, 13(10), 3181; https://doi.org/10.3390/pr13103181 - 7 Oct 2025
Abstract
Pressure Gain Combustion (PGC) is an interesting emerging concept to enhance the performance of gas turbines currently based on the Brayton–Joule cycle. Focusing on a F-class gas turbine for land-based power generation, the current work investigates PGC potential in both simple and combined [...] Read more.
Pressure Gain Combustion (PGC) is an interesting emerging concept to enhance the performance of gas turbines currently based on the Brayton–Joule cycle. Focusing on a F-class gas turbine for land-based power generation, the current work investigates PGC potential in both simple and combined cycle operations by means of an in-house simulation software. The PGC cycle lay-out specifically includes a booster compressor for delivering cooling air to the blades at the first stage of the gas turbine expander. The effects of different amounts of air from the same booster to the PGC system for cooling requirements are also analyzed. Considering reasonable PGC values based on literature data, the efficiency of the gas turbine simple cycle rises by 2.85–3.40 percentage points in the case of no combustor cooling, or 1.85–2.25 percentage points for the most extensive cooling at the combustor, compared to the reference case. The combined cycle efficiency increases too, despite the almost equal power generation at the bottoming steam cycle. Ultimately, a revised parametric analysis with reduced efficiency at the first stage of the gas turbine expander is carried out as well to account for the losses induced by the PGC on the fluid dynamics of the expansion. In this new scenario, the risk of nullifying the advantages related to PGC is real, because of specific combinations of lower expansion efficiency at the gas turbine expander and extensive cooling at the combustor. Thus, better turbine design and effective thermal management at the combustor are fundamental to achieve the highest efficiency. Full article
(This article belongs to the Special Issue Fluid Dynamics and Thermodynamic Studies in Gas Turbine)
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16 pages, 1181 KB  
Article
Modeling of the Mutual Placement of Thermoanemometer Sensors on a Flat Surface of an Air Flow
by Taras Dmytriv, Vasyl Dmytriv and Michał Bembenek
Processes 2025, 13(9), 2906; https://doi.org/10.3390/pr13092906 - 11 Sep 2025
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Abstract
A functional model of a thermoanemometer measuring the air flow velocity on a flat wall surface of the flow has been developed. From the heat balance equation of the sensing elements in the thermoanemometer, a dependence has been derived for determining the heating [...] Read more.
A functional model of a thermoanemometer measuring the air flow velocity on a flat wall surface of the flow has been developed. From the heat balance equation of the sensing elements in the thermoanemometer, a dependence has been derived for determining the heating temperature of the sensing elements. The distribution of the temperature field in the boundary layer was modeled by analogy with the velocity distribution, following a cubic dependence. The distribution of the temperature field on a flat wall surface of the flow from the heating of the sensing elements was obtained analytically by solving the heat conduction equation in the direction of the coordinate of the air flow velocity vector for the boundary conditions of the II as well as II and III kinds. The developed mathematical dependencies enable both the modeling of the distribution of temperature fields in the sensing elements and justifying the distance between them. The reliability of measurements of the air flow velocity on the wall surface of the flow depends on the impossibility of influencing the temperature of one sensing element of the sensor on the temperature of the other. The task of justifying the distance between the sensing elements of the sensor, which are located in the direction of the air flow velocity vector, aims to prevent the interaction of the temperature fields of the elements with each other. The boundary condition is that at the boundary of separation between the temperature fields of the sensing elements, there is a temperature that is 5 to 10% lower than the temperature of the colder sensing element. The ratio of the resistances of the sensing elements is 4/1. The power released by the first sensing element of the sensor, aligned along the air flow velocity vector, is 4 times lower than the heating power of the second sensing element of the sensor. The modeling was carried out at an air flow velocity within 30 and 330 m·s−1. The values of the distances between the sensing elements of the thermal anemometer vary with the supply voltage. The material of the sensing elements is nickel. The contact area of the surface of the sensing elements was 214.337 mm2. Full article
(This article belongs to the Special Issue Fluid Dynamics and Thermodynamic Studies in Gas Turbine)
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