Scientific extension Life Sciences/Environment/Plant Physiology/Animal Physiology/Remote Sensing/...
History of Plant Exploration Scientific Missions: Goals and Technologies

Fateme Mousavi

Volume 5, Issue 2 , August 2021, Pages 1-9

https://doi.org/10.22034/jtae.2021.120513

Abstract
  Recent advances in technology and the construction of new spacecraft have paved the way for a more detailed study of plants under real space conditions. The study of the growth and development of plants in space began in the 1950s by the Russians and the Americans. In the 1970s, the first plant experiments ...  Read More

Research Article Aerodynamics/Fluid Mechanics/Aeroacoustics/...
Numerical and Analytical Study of Acoustic Liner Absorption Coefficient to Reduce Turbofan Engine Noise

Iman Bahman-Jahromi; Hadi Dastourani

Volume 5, Issue 2 , August 2021, Pages 11-18

https://doi.org/10.22034/jtae.2021.129742

Abstract
  Due to environmental requirements in reducing aircraft noise, using acoustic liners at the inlet of turbofan engines is necessary. These liners are designed in different geometries. Understanding the effects of different parameters in the design of these liners is essential. In this paper, one of the ...  Read More

Scientific extension 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

Research Article Design/System/Reliability/Flight Competence/Flight Testing/...
Optimization of an Unmanned Aerial Vehicle Using Fuzzy Logic and Multidisciplinary Design Optimization

Mohammad reza Setayandeh; Alireza Babaei

Volume 5, Issue 2 , August 2021, Pages 29-41

https://doi.org/10.22034/jtae.2021.129738

Abstract
  This research tries to propose a method to solve problems related to constrained multi-objective optimizations (implementation, computation time, and simplicity). This method, based on fuzzy logic, converts constrained multi-objective optimization problem into unconstrained single-objective optimization ...  Read More

Scientific extension 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

Scientific extension Aviation/Piloting/Flight Care/Safety/Standard/Avionics/Air Telecommunications/...
Endless Runway Design: A New Horizon in the Development of the Aviation Industry

Pooyan Ayar; Alireza Pourfeiz

Volume 5, Issue 2 , August 2021, Pages 57-69

https://doi.org/10.22034/jtae.2021.129733

Abstract
  Scientists and researchers are always trying to optimize and develop a variety of transportation modes, including air transportation, by using their creative ideas. In this regard, the design of airports with circular runways (i.e., Endless Runways) has recently received much attention. In these kinds ...  Read More