نتایج جستجو برای: rectangular and annular sections

تعداد نتایج: 16841225  

Journal: :Energies 2021

A flow visualization study was carried out for boiling in a rectangular channel filled with and without metallic random porous media. Four main patterns are observed as intermittent slug-churn flow, churn-annular annular-mist mist regimes. These clearly classified based on the high-speed images of flow. The results pattern map according to mass rate were presented using saturation temperatures ...

2000
Iván Kopilovic Balázs Vágvölgyi Tamás Szirányi

In this paper some applications of motion analysis are investigated for a compact panoramic optical system (Panoramic Annular Lens). Panoramic image acquisition makes multiple or mechanically controlled camera systems needless for many applications. Panoramic Annular Lens’ main advantage to other omnidirectional monitoring systems is that it is a cheap, small, compact device with no external hy...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - دانشکده ادبیات و علوم انسانی دکتر علی شریعتی 1387

the study reflected in this thesis aims at finding out relationships between critical thinking (ct), and the reading sections of tofel and ielts tests. the study tries to find any relationships between the ct ability of students and their performance on reading tests of tofel and academic ielts. however, no research has ever been conducted to investigate the relationship between ct and the read...

سید فرهاد موسوی, , علی‌رضا روشنی زرمهری, , منوچهر حیدرپور, ,

Because of slight variation of the static head due to discharge fluctuations, the labyrinth weirs are considered to be economical structures for flood control and water level regulation in irrigation networks, as compared to other devices. Labyrinth weirs are composed of folded sections observed as trapezoidal and triangular in plan view. In this study, rectangular and U-shaped labyrinth weirs ...

ژورنال: علوم آب و خاک 2006
سید فرهاد موسوی, , علی‌رضا روشنی زرمهری, , منوچهر حیدرپور, ,

Because of slight variation of the static head due to discharge fluctuations, the labyrinth weirs are considered to be economical structures for flood control and water level regulation in irrigation networks, as compared to other devices. Labyrinth weirs are composed of folded sections observed as trapezoidal and triangular in plan view. In this study, rectangular and U-shaped labyrinth weirs ...

Journal: :Journal of Microwaves, Optoelectronics and Electromagnetic Applications 2014

2011
Sung-Min Kim Issam Mudawar

Article history: Received 30 April 2011 Received in revised form 24 June 2011 Accepted 24 June 2011 Available online 25 October 2011

ژورنال: :مکانیک سازه ها و شاره ها 2012
محمد کلته عباس عباسی مجید بهرامی

in this paper, a novel approximate solution to determine the nusselt number for thermally developed, slug (low-prandtl), laminar, single phase flow in channels of arbitrary cross section is presented. using the saint-venant principle in torsion of beams, it is shown that the thermally developed nusselt number for low-prandtl flow is only a function of the geometrical parameters of the channel c...

Journal: :European Physical Journal-special Topics 2022

This special issue encompasses the experimental and theoretical investigations on transport phenomena of nanofluids in cavities. The contributions are classified as follows: (1) nanofluid flow square/rectangular cavities, (2) cavities with obstacles, (3) wavy enclosures, (4) trapezoidal/circular/annular (5) enclosures.

Journal: :e-Journal of Surface Science and Nanotechnology 2009

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