نتایج جستجو برای: water flow

تعداد نتایج: 992149  

Journal: :Journal of Geography (Chigaku Zasshi) 1984

Journal: :journal of chemical and petroleum engineering 2014
falode olugbenga adeyemi abiodun fadairo adesina

the immiscible displacement of oil by water through a porous and permeable reservoir rock can be described by the use of a fractional flow curves (fw versus sw). water flooding project parameters can be obtained from the fractional flow curve. however, developing a representative fractional flow curve for a specific reservoir can be quite challenging when fluid and special core analysis data is...

To control the quality of reverse osmosis (RO) product water and reduce operational costs and environmental impacts by increasing the system’s energy efficiency, it is necessary to identify the influence of process parameters on energy consumption and permeate water quality. This paper introduces a case study focused on the application of Design of Experiments (DOE) method in an industrial-scal...

ژورنال: علوم آب و خاک 2018

Rivers has long been regarded as one of the most basic human water supplies. If the topography, a morphology, water requirements conditions, etc. allow water to be transferred to gravity, the use of the dike can have a significant impact on the flow rate and the sediment input to Intake. Dike design needs to consider several parameters such as position, length, type, etc. Using a good design ca...

Journal: :geopersia 0
hamid sharifi galiuk institute of petroleum industry, tehran hessam aloki bakhtiari institute of petroleum industry, tehran rezvan behin institute of petroleum industry, tehran mohammad reza esfahani institute of petroleum industry, tehran

the simultaneous flow of oil and water in porous media is described by relative permeability curves, mainly derived from laboratory experiments. relative permeability is of paramount importance in predicting reservoir production performance and drive mechanisms and its value depends largely on the volume fraction of fluids present in the test samples. nowadays x-ray scanners are one of the most...

2016
A. J. Nazari S. Honma

Abstract—This paper evaluates oil displacement by water in Hauterivian sandstone reservoir of Kashkari oil field in North of Afghanistan. The core samples of this oil field were taken out from well No-21st, and the relative permeability and fractional flow are analyzed. Steady state flow laboratory experiments are performed to empirically obtain the fractional flow curves and relative permeabil...

2011
Satoshi Ikegami Kazuhiko Shoji Shinji Suzuki Yo Kishimoto Tsuyoshi Kojima

In this study we suggest that the velocity of water entering the cervical esophagus can be used as an index of pharyngeal swallowing function. In this article, the basic in vitro principles of water and viscous water flow velocity evaluation using ultrasonic methods are introduced. Water flow involving small gas bubbles passing through a silicon tube could be monitored in the B-mode images and ...

Journal: :محیط شناسی 0
محمدرضا جلیلی قاضی زاده استادیار دانشکده عمران، آب و محیط زیست، دانشگاه شهید بهشتی ضیاالدین ایدی دانشجوی دکتری سازه های هیدرولیکی، دانشگاه رازی

extended abstract abstract pressure management is an effective method for water demand management. for evaluation of the effects of pressure changes on leakage level of water networks, the favad equation is usually used. however, in this equation, exponent of pressure parameter (n) needs to be determined. for estimation of n, either some information about the leak opening is necessary or networ...

ژورنال: علوم آب و خاک 2012
سید پویان احمدپناه, , محمدجواد منعم, ,

There are different automatic downstream control algorithms developed to increase the flexibility of the irrigation system. CARDD control logic is one of the heuristic and distance automatic downstream control systems. In this research, mathematical model of the CARDD control logic coordinated with ICSS hydrodynamic model was developed and the CARDD control logic was tested and evaluated under ...

An important and fundamental issue in Iran is to utilize water and to avoid wasting it. Therefore, climate change can be considered as an effective factor on water resources. The most tangible climate change phenomenon is drought which is much important to be identified. In this study, the effect of climate changes on flow rate in Bashar River, Shahmokhtar station of Yasouj city was evaluated u...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید