o. Abouali

[ 1 ] - A Message-Passing Distributed Memory Parallel Algorithm for a Dual-Code Thin Layer, Parabolized Navier-Stokes Solver

In this study, the results of parallelization of a 3-D dual code (Thin Layer, Parabolized Navier-Stokes solver) for solving supersonic turbulent flow around body and wing-body combinations are presented. As a serial code, TLNS solver is very time consuming and takes a large part of memory due to the iterative and lengthy computations. Also for complicated geometries, an exceeding number of grid...

[ 2 ] - Simulation of Metro Train Fire in an Underground Station of Tehran Metro Line 7

In this research a fire scenario was simulated in one of the stations of the line 7 of Tehran's subway system. The Line 7 is under construction and the ventilation system is under design. Fire was set for a stopping metro train at the platform of the station. A 160 meter length eight-car metro train with the forth wagon on the fire was studied. The heat release rate is based on a quadratic f...

[ 3 ] - شبیه سازی عددی جریان هوا، انتقال حرارت و رطوبت در حفره بینی انسان قبل و بعد از جراحی مجازی توربینکتومی

توربینیت ها در گرم و مرطوب‌سازی هوای عبوری از بینی نقش مهمی دارند و جریان عبوری از مجرای بینی را تحت تأثیر قرار می‌دهند. هدف از این پژوهش مدل‌سازی تأثیرات برداشتن توربینیت تحتانی بر میدان جریان، انتقال حرارت و رطوبت از مخاط حفره‌ی بینی به هوا و مقایسه آن‌ها قبل و بعد از جراحی است. عمل توربینکتومی به‌صورت مجازی بر روی مدل محاسباتی و تحت نظر متخصص صورت گرفته است. در این پژوهش جریان به‌صورت آرام و...

[ 4 ] - Micro Particles Transport and Deposition in Realistic Geometry of Human Upper Airways

Realistic geometry of human upper airways from mouth to the end of trachea was reconstructed by implementing the CT-Scan images of a male subject.   A computational model for analyzing the airflow in the airways was developed and several simulations were performed.  To capture the anisotropy of the inhaled airflow in the upper airways, the Reynolds stress transport model of turbulence was used ...

[ 5 ] - Three-Dimensional Simulation of Airflow and Nano-Particle Beam Focusing in Aerodynamic Lenses(RESEARCH NOTE)

In this paper airflow, nano-and micro-particle motions in an aerodynamic particle beam focusing system consisting of several lenses, a nozzle and the downstream chamber, was studied. A three-dimensional numerical simulation for the system was presented and the compressible airflow and thermal conditions in the aerodynamic lens system were evaluated. Dilute particle concentration was assumed so ...

[ 6 ] - Numerical simulation of the fluid dynamics in a 3D spherical model of partially liquefied vitreous due to eye movements under planar interface conditions

Partially liquefied vitreous humor is a common physical and biochemical degenerative change in vitreous body which the liquid component gets separated from collagen fiber network and leads to form a region of liquefaction. The main objective of this research is to investigate how the oscillatory motions influence flow dynamics of partial vitreous liquefaction (PVL). So far computational fluid d...