نتایج جستجو برای: ow dispersion

تعداد نتایج: 76637  

Journal: :Capillarity 2022

The characterization of two-phase flow has been commonly based on homogeneous wet capillary models, which are limited to heterogeneous porous media. In this work, pressure and relative permeability models for three systems derived, enable the analysis effect oil-wet ratio mechanism. pressures, permeabilities water cut curves simulated at primary drainage stage. results show that water-wet exhib...

1996
Bao-An Li

Within the framework of a relativistic transport model (ART 1.0) for heavy-ion collisions at AGS energies, we study the transverse ow of pions with respect to that of nucleons using two complementary approaches. It is found that in central collisions pions develop a weak ow as a result of the ow of baryon resonances from which they are produced. On the other hand, they have a weak anti ow in pe...

Journal: :The journal of cetacean research and management 2023

Recent photo-identification and genetic studies have identified at least five discrete breeding populations in Australia Oceania: western (D), eastern (E (i)), New Caledonia (ii)), Tonga (iii)), French Polynesia the Cook Islands (F). Also evident are low levels of intermingling among consistent with degree differentiation. Photo-identification has confirmed linkages between Area V feeding areas...

Journal: :Journal of Marine Science and Engineering 2023

The exploitation of marine renewable energy sources, such as offshore wind (OW), wave (WA), and tidal stream (TS) energy, is essential to reducing carbon emissions in China. Here, we demonstrate that a well-designed deployment OW-WA-TS joint would be better than OW alone improving performance terms the total amount temporal stability integrated power output northern Bohai Sea/Strait, Subei Shoa...

1999
Andrew C. Poje George Haller

The relationship between the statistical and geometric properties of particle motion in aperiodic, two-dimensional ows is examined. Finite-time invariant manifolds associated with transient hyperbolic trajectories are shown to divide the ow into distinct regions with similar statistical behavior. In particular, numerical simulations of simple, eddy resolving barotropic ows indicate that there e...

ژورنال: :پژوهش های محیط زیست 0
سید سعیدرضا احمدیزاده دانشیار گروه مهندسی محیطزیست، دانشکده منابع طبیعی و محیطزیست، دانشگاه بیرجند زینب کریم زاده مطلق دانشآموخته کارشناسی ارشد ارزیابی و آمایش سرزمین، مهندسی محیطزیست، دانشکده منابع طبیعی و محیطزیست، دانشگاه بیرجند علی اشرفی عضو هیأت علمی دانشگاه بیرجند و دانشجوی دکتری سنجش از دور دانشگاه تهران

مقاله حاضر، کاربرد ارزیابی چند معیاره را برای آنالیز تناسب اراضی شهرستان بیرجند که با وسعتی حدود 391900هکتار، در مرکز استانخراسان جنوبی واقع شده است، نشان میدهد. شهرستان بیرجند که از سال 1333مرکز استان خراسان جنوبی شده است، بهعنوان مرکزتمرکز جمعیتی استان دارای پتانسیلهای مناسب جهت توسعه کاربری گردشگری است که تاکنون کاری درخور برای آن انجام نشده است.فعالیتهای گردشگری بدون برنامهریزی و مدیریت صحی...

2008
Georgios A. Perdikaris

A computational method for predicting the dispersion of gaseous emissions in regions with complex topography is presented. Diierent meteorological conditions, source data, and gas compositions are taken into consideration. The three-dimensional governing equations of uid-and thermodynamics are numerically solved by means of the nite volume method. The k-turbulence model is utilized to account f...

1996
C. J. van Duijn P. Knabner

A model for transport of solutes in a porous medium participating in a dissolu-tion/precipitation reaction, in general not in equilibrium, is studied. Ignoring diiu-sion/dispersion the initial value problem for piecewise constant initial states is studied, which e.g. for ionic species include a change of the ionic composition of the solution. The mathematical solution, nearly explicitly found b...

1995
C. J. van Duijn

A model for transport of solutes in a porous medium participating in a dissolu-tion/precipitation reaction, in general not in equilibrium, is studied. Ignoring diiu-sion/dispersion the initial value problem for piecewise constant initial states is studied, which e.g. for ionic species include a change of the ionic composition of the solution. The mathematical solution, nearly explicitly found b...

1993
Peter Knabner

In this paper we present a model for crystal dissolution in porous media and we analyse travelling wave solutions of the ensuing equations for a one{dimensional ow situation. We demonstrate the structure of the waves and we prove existence and uniqueness. The travelling wave description is characterized by a rate parameter k and a diiusion/dispersion parameter D. We investigate the limit proces...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید