Flow Modeling of Lane-Less and Direction-Less Movements of Autonomous Vehicles

, M.Sc. Thesis Sharif University of Technology Sebti, Elaheh (Author) ; Shafahi, Yousef (Supervisor)

Abstract

Nowadays, transportation has become one of the key elements of human social life, and this phenomenon has created several problems, including overcrowding, long travel times, and environmental deterioration, all of which have led to an increase in the necessity of finding novel solutions to resolve these predicaments. One of the suggested solutions is the use of autonomous and connected vehicles. This study focuses on the lane-less and direction-less movement of autonomous vehicles. The implementation of such a scenario is possible by relying on intelligent transportation systems, such as the synchronized connection of vehicles, which would reduce users' travel time and increase their...

Complexity of Density Dependencies of Thermal- and Internal- Pressure Compared to that of Total Pressure

, M.Sc. Thesis Sharif University of Technology Sajjadi, Hashem (Author) ; Parsafar, Gholamabbas (Supervisor) ; Goharshadi, Elaheh (Supervisor)

Abstract

A simple equation of state (EoS) has recently been introduced (J. Phys. Chem. B 2009, 113, 11977–11987) as (Z-1) v^2=e+f⁄ρ+gρ^2, where Z≡pv⁄RT is the compressibility factor, v=1⁄ρ is molar volume, and e, f, and g are temperature dependent parameters. This EoS has been found to be accurate for all types of nano- and bulk- solids and bulk fluids, in the entire temperature and pressure ranges for which experimental data are reported, except for the isotherms within the critical region.
The aim of this work is to investigate the validity of a 3-term expression similar to the mentioned EoS for both thermal and internal contributions to the compressibility factor, separately. Such...

Pulsating Pulmonary Blood Inflow in Total Cavopulmonary Connection (TCPC) after Fontan Surgery

, M.Sc. Thesis Sharif University of Technology Moradi, Hamed (Author) ; Sayadi, Hassan (Supervisor) ; Firoozabadi, Bahar (Supervisor) ; Navabi Shirazi, Mohammad Ali (Co-Supervisor) ; Malakan Rad, Elaheh (Co-Supervisor)

Abstract

Patients with a single ventricle disease who have undergone Fontan surgery have always had long-term complications. These complications include pulmonary artery stiffness and decreased ability to exercise. In fact, due to removal of the right ventricle from the circulatory system, blood pressure and pulsatility inflow to total cavopulmonary connection (TCPC) are reduced following this surgery. Creating waves (radial displacement) on the IVC (Inferior Vena Cava) wall can increase pulmonary flow pulsations. The Objective of this study is to test the effect of induced wave amplitude on the pulmonary flow pulsations at the rest condition. Computational fluid dynamic (CFD) simulations were...