Volume 14 (2021)
Volume 13 (2020)
Volume 12 (2019)
Volume 11 (2018)
Volume 10 (2017)
Volume 9 (2016)
Volume 8 (2015)
Volume 7 (2014)
Volume 6 (2013)
Volume 5 (2012)
Volume 4 (2011)
Volume 3 (2010)
Volume 2 (2009)
Volume 1 (2008)
ResearchPaper Space systems design (spacecraft, satellites, space stations and their equipment)
Effects of Geometrical Parameters of Gas Flow Channels on Polymer Electrolyte Membrane Fuel Cell Performance

Hamed Moeini; Ebrahim Afshari; Karim Mazaheri

Volume 15, Issue 1 , May 2022, Pages 1-13


  In the present study, the effects of geometrical properties of gas flow channels on both current density and temperature distributions inside a polymer electrolyte membrane (PEM) fuel cell are investigated. The main purpose here is to clarify the effects of the variation of width, depth, and the ribs ...  Read More

ResearchPaper Remote sensing
The retrieval of wet refractivity index by tomography using spherical cap harmonics

Masood Dehvari; Saeed Farzaneh; Mohammad Ali Sharifi

Volume 15, Issue 1 , May 2022, Pages 15-24


  In this research, three-dimensional and four-dimensional tomography is used to demonstrate the distribution of wet refractivity index of the troposphere. In this model, spherical cap harmonics are used for the horizontal distribution of the wet refractivity index, and empirical orthogonal functions are ...  Read More

ResearchPaper Space systems design (spacecraft, satellites, space stations and their equipment)
Drop Behavior on Micro-Structured Superhydrophobic Coating

Ramin Kamali Moghadam; Mohamad Taeibi; Salar Heyat Davoudian; Reinhard Miller

Volume 15, Issue 1 , May 2022, Pages 25-33


  Superhydrophobic coatings can be made by creating a micro-sized structure on a surface providing super-repellent properties which has many applications in aerospace, defense, automotive, biomedical and engineering. Numerical simulation of drop dynamics and motion on a superhydrophobic surface helps us ...  Read More

ResearchPaper Space Science and Technology
Strap-On Boosters Separation Analysis Using Coupled Simulation of Constraint Dynamics and Time Dependent CFD

Mostafa Jafari; Alireza Toloei

Volume 15, Issue 1 , May 2022, Pages 35-45


  A numerical dynamic-aerodynamic interface for simulating the separation dynamics of constrained strap-on boosters jettisoned in the atmosphere is presented. Two commercial solvers: a 6DOF multi-body dynamic solver and a numerical time-dependent flow solver are integrated together with an interface code ...  Read More

ResearchPaper Space systems design (spacecraft, satellites, space stations and their equipment)
Modelling Diversity in Redundant Systems: Case Study of Satellite Systems

Ghasem Kahe; Mehdi Alemi Rostami

Volume 15, Issue 1 , May 2022


  Diversity plays an essential role in increasing reliability of redundant systems, however in safety and mission critical applications. The onboard computer of satellites and the flight computer of aircrafts, which are ultra-reliable system, utilizes various hardware platforms for their redundant architecture ...  Read More

ResearchPaper Infrastructure (labs, sensors, software,…)
Design, Construction and Performance Evaluation of a Cold Gas Thruster Test Stand

َAlireza Alikhani; Mohammad Reza Salimi

Volume 15, Issue 1 , May 2022, Pages 55-64


  The cold gas thruster is one of the significant components of a satellite and its application possesses a marked impact on the entire system performance. The nonlinear function and order of magnitude, lead to increasing the importance of thruster function. Therefore, pre-mission performance assessment ...  Read More