Research Paper
A Nonlinear Attitude Controller for a Launch Abort System of a Manned Spacecraft

Ghasem Kahe; Maysam Mohammadi-Amin; Arash Sefidan Benisi

Volume 10, Issue 1 , June 2017, Pages 1-13

Abstract
  Various strategies have been developed to increase the safety of spacecraft crews, among which the Launch Abort System has been widely considered by the space centers across the world. The launch abort system should be able to carry the crew module away from the failed launcher or rocket in a short time ...  Read More

Research Paper
Numerical Simulation of Turbulent Reacting flow in a Trapped Vortex Combustor

Mostafa Esmaeili

Volume 10, Issue 1 , June 2017, Pages 15-25

Abstract
  Trapped vortex combustor (TVC) is a compact combustor which represents the high efficiency in flame stabilization. In this study, turbulent reacting flow through trapped vortex combustor is numerically simulated. In order to model turbulence, the K-ω-SST and scale adaptive simulation (SAS) models, ...  Read More

Research Paper
Plasma Antenna Technology in Space Missions

fatemeh Sadeghi-kia

Volume 10, Issue 1 , June 2017, Pages 27-34

Abstract
  This study focuses on the characteristics of plasma antennas for their application in space communication systems. Structural and functional characteristics of plasma antenna are presented to evaluate their capability of being used in space missions. Numerical and experimental analysis results of the ...  Read More

Research Paper
Effective Parameters of the Aluminum Particles Cyclone Separator in the Effervescent Fuel

Javad Vaziri Naein Nejad; F. Ommi; Seyed Hossein Moosavi

Volume 10, Issue 1 , June 2017, Pages 35-45

Abstract
  The addition of proper-sized metal particles to the effervescent fuels increases the density of exhaust gases from rocket engines and the trust consequently. On the other hand, the addition of non-optimized metal particles causes combustion instability. Thus, the separation of proper-sized metal particles ...  Read More

Research Paper
Sun Vector and Magnetic Vector Simulation for Hardware in the Loop Tests

amirhossein tavakoli; ali faghihi; S.Mohammad Mehdi Dehghan

Volume 10, Issue 1 , June 2017, Pages 47-53

Abstract
  Simulating environmental conditions for the satellite attitude sensors is a fundamental requirement of hardware in the loop tests of attitude determination and control subsystem. In this paper, a new design for simulating sun vector and magnetic vector is presented. The operating environment for attitude ...  Read More

Research Paper
An Optimal Power Allocation in Multi-Beam Satellite Communication Systems Including Inter-Beam Interference by Particle Swarm Optimization (PSO)

Alireza Rezaee; Niloofar Nobahari; Hakime Barghi Zanjani

Volume 10, Issue 1 , June 2017, Pages 55-60

Abstract
  This paper aims to propose the interference and also investigates the channel effect on power allocation issue. Here, the particle swarm optimization (PSO) method is employed in order to find the optimal solution. Because of the value of resources in the satellite telecommunication systems, optimizing ...  Read More