نتایج جستجو برای: blockage of flow

تعداد نتایج: 21214026  

Introduction: Corrosion and scaling are important factors affecting drinking water quality, causing health and economic problems. This study aimed to investigate the indicators of corrosion and scaling in Rafsanjan drinking water. Materials and Methods: The present descriptive cross-sectional study was conducted in winter 2018 and spring 2019 in Rafsanjan. The 56 samples were randomly taken fr...

2002
M. E. Taslim

Experimental investigations have shown that the enhancement in heat transfer coefficients for air flow in a channel roughened with low blockage (e/Dh < 0.1) angled ribs is on the average higher than that roughened with 90◦ ribs of the same geometry. Secondary flows generated by the angled ribs are believed to be responsible for these higher heat transfer coefficients. These secondary flows also...

Journal: :Journal of Hydroinformatics 2023

Abstract The assessment of visual blockages in cross-drainage hydraulic structures, such as culverts and bridges, is crucial for ensuring their efficient functioning preventing flash flooding incidents. extraction blockage-related information through computer vision algorithms can provide valuable insights into the blockage. However, absence comprehensive datasets has posed a significant challe...

Journal: :American journal of physiology. Heart and circulatory physiology 2002
Annemiek J M Cornelissen Jenny Dankelman Ed VanBavel Jos A E Spaan

Myogenic response, flow-dependent dilation, and direct metabolic control are important mechanisms controlling coronary flow. A model was developed to study how these control mechanisms interact at different locations in the arteriolar tree and to evaluate their contribution to autoregulatory and metabolic flow control. The model consists of 10 resistance compartments in series, each representin...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سیستان و بلوچستان - دانشکده مهندسی 1390

پرتاب کننده جامی یک بخش اساسی از سرریز هر سد است که به صورت کارامد انرژی را مستهلک می کند. در این پایان نامه، با استفاده از نرم افزار flow-3dجریان عبوری از روی پرتاب کننده جامی بررسی می گردد. همچنین اثر هندسه پرتاب کننده جامی و تغییرات عدد فرود بر میدان جریان و فشار بررسی می شود. نرم افزار flow-3d یک برنامه تحلیلی جریان است که معادلات حاکم بر روی میدان جریان که معادلات rans(reynolds average nav...

2015
Marta Zocca Giulio Gori Alberto Guardone

Reference ice accretion experiments are reproduced numerically using the simulation framework PoliMIce to investigate solid blockage effects and wall-model boundary layer interaction at the wall-model juncture. The open-source OpenFOAM software is applied to the computation of the aerodynamic flow-field and of the trajectories of water droplets. The thickness of the iced layer is then determine...

Journal: :Journal of physics 2022

Abstract Blockage of arteries by the formation plaques causing stenosis is a major health problem among human beings.In this study, model developed for flow through multi-stenosed elastic artery segment under effect body acceleration and slip velocity. Fluid regarded as Non-Newtonian Bingham Plastic Fluid. The equations representing are solved analytically using Perturbation Method. Result disc...

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