نتایج جستجو برای: environmental fluid dynamics code efdc

تعداد نتایج: 1141048  

Journal: مهندسی دریا 2005
M.S. Seif, S.H. Sadathosseini, S.M. Mousaviraad,

Nowadays, various numerical methods are developed to extend computational fluid dynamics in engineering applications. One of the most useful methods in free surface modeling is Boundary Element Method (BEM). BEM is used to model inviscid fluid flow such as flow around ships. BEM solutions employ surface mesh at all of the boundaries. In order to model the linear free surface, BEM can be modifie...

2013
J. Garcia R. Cerdeira N. Tavares L. M. R. Coelho Prashant Kumar M. G. Carvalho

Four geometrical configurations of a real street canyon in Barreiro city (Portugal) are considered to study their influence on the dispersion of PM10. These configurations include actual architectural layout of the street (Option 1), and three virtual cases (Options 1-3). Option 2 includes the modification of real geometry by including 4 m gaps between the buildings situated on the southern par...

Journal: :iranian journal of oil & gas science and technology 2014
seyyed mohsen hosseini khalil shahbazi mohammad reza khosravi nikou

among the all parameters affecting the performance of a downhole de-oiling hydrocyclone, the investigation of internal flow field deserves more attempts especially in the petroleum industry. in this study, the effects of inlet flow rate, inlet oil volume fraction, and oil droplet diameter on the separation efficiency and pressure drop ratio have been investigated along the hydrocyclone body. al...

Journal: :basic and clinical neuroscience 0
nafiseh masoumi chemical & petroleum engineering department, sharif university of technology, tehran, iran. f. framanzad biomechanics group faculty, mechanical engineering department, iranian university of science and technology, tehran, iran. behnam zamanian department of chemical engineering, north eastern university, boston, ma,usa. a.s. seddighi neurosurgery department, shohada-e-tajrish hospital, shahidbeheshti university of medical sciences, tehran, iran. m.h. moosavi biomedical engineering, amirkabir university of technology, tehran, iran. s. najarian faculty of biomedical engineering, amirkabir university of technology, tehran, iran.

many diseases are related to cerebrospinal .uid (csf) hydrodynamics. therefore, understanding the hydrodynamics of csf .ow and intracranial pressure is helpful for obtaining deeper knowledge of pathological processes and providing better treatments. furthermore, engineering a reliable computational method is promising approach for fabricating in vitro models which is essential for inventing gen...

ژورنال: تحقیقات موتور 2019
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This research proposes the effect of temperature variation in the Prandtl number on the power, the efficiency and the heat loss of the Gama-type Stirling engine. It should be noted that the Prandtl number included the viscosity, the thermal conductivity coefficient and the specific heat at constant pressures of the working fluid, which the temperature dependency of such first two thermo-dynamic...

I.E Fahs, M Ghasemi

A fuel cell is an electro-chemical tool capable of converting chemical energy into electricity. High operating temperature of solid oxide fuel cell, between 700oC to 1000oC, causes thermal stress. Thermal stress causes gas escape, structure variability and cease operation of the SOFC before its lifetime.The purpose of the current paper is to present a method that predicts ...

Journal: :nutrition and food sciences research 0
reza sharifanfar dept.of food technology engineering, college of abouraihan, university of tehran, pakdasht, iran hossein mirsaeedghazi department of agrotechnology, college of abouraihan, university of tehran, pakdasht, iran ali fadavi department of agrotechnology, college of abouraihan, university of tehran, pakdasht, iran mohammad hossein kianmehr dept.of food technology engineering, college of abouraihan, university of tehran, pakdasht, iran

background and objectives: pomegranate juice (pj) contains large particles that stick to evaporator walls causing off flavors in the concentrate due to burning. microfiltration is used to clarify pj. fouling is a limiting phenomenon that can prevent the industrialization of membrane clarification. changes in the geometry of the membrane module such as using baffles are useful to decrease this p...

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