Propulsion/Thermodynamics/Heat Transfer/Fuel and Combustion/Energy/...
The Effect of Thermal Barrier Coating on the Thermal Performance of a Gas Turbine Blade

Ali Hajizadeh; Mir Yoseph Hashemi; Ali ziaie Asl

Articles in Press, Accepted Manuscript, Available Online from 30 October 2023

Abstract
  Due to the very high importance of gas turbine in electricity production and also its increasing development in the electricity industry, one of the most important methods to increase the efficiency of gas turbine blades is to add thermal barrier coating to their outer surface. These coatings improve ...  Read More

Propulsion/Thermodynamics/Heat Transfer/Fuel and Combustion/Energy/...
Design of cryogenic propulsion feeding system for second stage of special rocket Based on space standards

MohamadAmin Borghei; Muhammad Amin Eskandari

Volume 8, Issue 3 , September 2024, , Pages 17-32

https://doi.org/10.22034/jtae.2024.8.3.2

Abstract
  In general, according to the Russian Gost standard, the space propulsion engine system includes injection subsystems, thrust chamber, heat transfer and cooling system, launch system, feeding system, thrust vector control system which due to overlap and penetration The manifolds between the engine reservoirs ...  Read More

Propulsion/Thermodynamics/Heat Transfer/Fuel and Combustion/Energy/...
Analysis and identification of the flow pattern in a specific high-pressure axial turbine in off-design conditions

Sahar Saharkhiz; Reza Aghaei Togh

Volume 8, Issue 3 , September 2024, , Pages 47-61

https://doi.org/10.22034/jtae.2024.8.3.4

Abstract
  The aim of this research is to identify the flow pattern in off-design conditions of a specific high-pressure axial turbine. by writing the preliminary design code, the turbine was designed, Then the geometry of this turbine was designed in CATIA and Ansys Design Modeler softwares, and it is meshed in ...  Read More

Propulsion/Thermodynamics/Heat Transfer/Fuel and Combustion/Energy/...
Numerical Simulation of Unsteady Flow and Calculation of Heat Transfer Coefficient inside the Solid Fuel Engine Shell

Mohsen Esfandi; Mohammad Kazem Moayyedi

Volume 8, Issue 1 , April 2024, , Pages 27-39

https://doi.org/10.22034/jtae.2024.8.1.3

Abstract
  In this study, the simulation of internal ballistics and the exhaust flow of a solid propellant engine have been investigated. The flow field considered in this problem including the cylindrical grain and the solid wall of the engine and the flow at the nozzle outlet have been studied. The governing ...  Read More

Propulsion/Thermodynamics/Heat Transfer/Fuel and Combustion/Energy/...
A review of studies on air-breathing turbine engines from an energy–exergy viewpoint

jamasb pirkandi; AliReza Zolfi; Gholam Reza Hashemzadeh

Volume 7, Issue 3 , September 2023, , Pages 49-67

https://doi.org/10.30699/jtae.2023.7.3.5

Abstract
  Studies show that the analysis of the first law in air propulsion systems alone is not sufficient, and for a complete study of a system, the second law and exergy analysis should also be considered. Thermodynamic analysis of air-breathing engines, especially Turbojet, Turbofan and Turboprop engines, ...  Read More

Propulsion/Thermodynamics/Heat Transfer/Fuel and Combustion/Energy/...
Use of Solid Fuel Ramjet Technology in the New Generation of Artillery Shells

Sobhan Herfat; mostafa mahmoodi

Volume 7, Issue 2 , June 2023, , Pages 49-58

https://doi.org/10.30699/jtae.2023.7.2.6

Abstract
  Increasing the range of conventional bullets has become very important today. Previous technologies increased the range of bullets by a certain amount. These former technologies in artillery shells include the technology of creating a bullet at the base of the bullet and the use of rocket bullet technology. ...  Read More

Propulsion/Thermodynamics/Heat Transfer/Fuel and Combustion/Energy/...
Simulation of the Bypass Dual Throat Nozzle and investigation of parameters affecting the change of thrust vector angle

Amir Mohammad Neyzan Hosseini; Hossein Mahdavy-Moghaddam

Volume 7, Issue 1 , April 2023, , Pages 25-33

https://doi.org/10.30699/jtae.2023.7.1.3

Abstract
  The aim of this study was to investigate the effects of three parameters including secondary flow injection angle, secondary flow injection location and bypass section geometry on the deflection angle of the thrust vector. The model is simulated in both two and three dimensional for a Dual Throat Nozzle. ...  Read More

Propulsion/Thermodynamics/Heat Transfer/Fuel and Combustion/Energy/...
Investigation of Thermal Control Methods in Small Scale Satellites

Zeynab Haji Babaee Taheri; Jamasb Pirkandi; yosef Abbasi

Volume 5, Issue 4 , February 2022, , Pages 23-34

https://doi.org/10.22034/jtae.2022.145234

Abstract
  The thermal control subsystem (TCS) of satellites is responsible for providing and maintaining the allowable temperature of that satellite equipment. Naturally, if this subsystem is not properly designed, other subsystems, including the payload, will not be able to do their duties. In general, there ...  Read More

Propulsion/Thermodynamics/Heat Transfer/Fuel and Combustion/Energy/...
A Review of Studies on Ramjet and Scramjet Engines from an Energy–exergy Viewpoint

Jamasb Pirkandi; AliReza Zolfi

Volume 5, Issue 3 , November 2021, , Pages 67-79

https://doi.org/10.22034/jtae.2021.140123

Abstract
  The second law of thermodynamics and exergy is an important issue in the analysis of propulsion systems that have been highly regarded by researchers in recent years. Studies show that the analysis of the first law in air propulsion systems alone has low scientific value, and for a complete study of ...  Read More

Propulsion/Thermodynamics/Heat Transfer/Fuel and Combustion/Energy/...
Performance Evaluation of a Turbojet Engine by Exergy Analysis of its Components

Morteza Bayati

Volume 5, Issue 2 , August 2021, , Pages 19-27

https://doi.org/10.22034/jtae.2021.129741

Abstract
  In this research, the performance of the J85-GE21 turbojet engine by exergy analysis of engine components was evaluated. The performance of the engine and its components for different power loads, at S.L. and 11000 meters and several different speeds, was investigated by the equilibrium exergy and energy ...  Read More

Propulsion/Thermodynamics/Heat Transfer/Fuel and Combustion/Energy/...
Investigation of Effect of Rheological Behavior of Gelled Propellant on Atomization Characteristics of Swirl Injector

Ali Saberi moghaddam; Farhad Manourizadeh; esmail valizadeh

Volume 5, Issue 2 , August 2021, , Pages 43-56

https://doi.org/10.22034/jtae.2021.129737

Abstract
  The Gelled propellants have a promising future for aerospace applications because of possessing the advantages of both solid and liquid propellants. A gel propellant is a liquid propellant whose rheological properties have changed by the addition of gellant and other additives. The rheological properties ...  Read More

Propulsion/Thermodynamics/Heat Transfer/Fuel and Combustion/Energy/...
Effects of Blowing Correction Factor on Convection Heat Transfer Coefficient in Thermal Insulators Modeling

Zaheer Sabohi; Mohammad Razmjooei

Volume 5, Issue 1 , May 2021, , Pages 15-28

https://doi.org/10.22034/jtae.2021.129746

Abstract
  This paper investigates the heat transfers and ablation of thermal insulators used in motors and nozzles. The heat and mass transfer equations are considered in two dimensions in a convergent-divergent nozzle. The finite volume method and the implicit method for time dependence have been used to solve ...  Read More

Propulsion/Thermodynamics/Heat Transfer/Fuel and Combustion/Energy/...
Study of Emitted Sound of a Gas Turbine Model Combustor When Flame Adheres to Burner Head

Amir Matdani; Amir Aghabeigi; Hosna Bahonar

Volume 5, Issue 1 , May 2021, , Pages 57-65

https://doi.org/10.22034/jtae.2021.129744

Abstract
  Experimental and numerical analysis of a gas turbine model combustor is performed for two cases of regular operation, and attached flow (Coanda jet). The flame shape is visualized experimentally to reveal the differences in the flame structure of the two casesThe combustor sound frequency is measured ...  Read More