نتایج جستجو برای: pressure distribution equation

تعداد نتایج: 1200669  

Journal: :Applied Mathematics and Computation 2012
Ramesh B. Kudenatti D. P. Basti N. M. Bujurke

Characteristic features of squeeze film lubrication between two rectangular plates, of which, the upper plate has a roughness structure, in the presence of a uniform transverse magnetic field are examined. The fluid in the film region is represented by a viscous, incompressible and electrically conducting couple-stress fluid. The thickness of the fluid film region is h and that of the roughness...

2016
Kun Yang Lixin Tao Gehendra Mahara Yan Yan Kai Cao Xiangtong Liu Sipeng Chen Qin Xu Long Liu Chao Wang Fangfang Huang Jie Zhang Aoshuang Yan Zhao Ping Xiuhua Guo

The quadratic inference function (QIF) method becomes more acceptable for correlated data because of its advantages over generalized estimating equations (GEE). This study aimed to evaluate the relationship between platelet indices and blood pressure using QIF method, which has not been studied extensively in real data settings.A population-based longitudinal study was conducted in Beijing from...

2006
A. Mellet A. Vasseur

We establish the existence of a weak solutions for a coupled system of kinetic and fluid equations. More precisely, we consider a Vlasov-FokkerPlanck equation coupled to compressible Navier-Stokes equation via a drag force. The fluid is assumed to be barotropic with γ-pressure law (γ > 3/2). The existence of weak solutions is proved in a bounded domain of R with homogeneous Dirichlet conditions...

2015
B. Venkata Narayana Diwakar Reddy

A comprehensive method of theoretical analysis for finite Squeeze Film Damper using finite element method is presented. The modified Reynolds equation in the film is solved using the finite element discretization. A Galerkin variational method is applied for solving modified Reynolds equation to determine the pressures as well as load carrying capacities. The pressure distribution and load carr...

ژورنال: علوم آب و خاک 2018

A water distribution network (WDN) may not be able to satisfy all required demands when it’s in the pressure deficit mode or under over-loaded demand conditions. Analysis of the network in this mode requires pressure dependent analysis (PDA). Unlike demand driven analysis (DDA), PDA needs an extra equation for every node to relate the nodal demand and the nodal pressure; so it should be solved ...

A new model for the vapor phase of a pressurized liquid called "the cluster model: which is originally introduced in this work, along with an accurate equation of state for the liquid phase called the LIR, is used to derive an accurate equation for the vapor pressure of liquid as a function of external pressure. The chemical Potential of both phase have been found to be in good agreement wi...

Journal: :journal of chemical and petroleum engineering 2012
hassan mahmoudian ezatallah kazemzadeh kazem saadat hamid sharifi g.

application of archie equation in carbonate reservoirs is not easy due to high dependence of its parameters on carbonate characteristics. carbonates are very heterogeneous in nature and hydrocarbon reserve estimation in these reservoirs of mostly oil-wet and intermediate-wet is highly influenced by the input values of saturation exponent. to our knowledge, non representative oils have been used...

Journal: :تحقیقات نظام سلامت 0
مهربان صادقی دانشیار، گروه مهندسی بهداشت محیط، دانشکده بهداشت، دانشگاه علوم پزشکی شهرکرد، شهرکرد، ایران امین تاجی اشکفتکی دانشجوی کارشناسی ارشد، گروه مهندسی عمران، دانشکده فنی مهندسی، دانشگاه آزاد اسلامی واحد یاسوج، یاسوج، ایران حسن هاشمی کمیته تحقیقات دانشجویی، دانشکده بهداشت، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران سعید حسینی مربی، گروه عمران، دانشکده فنی مهندسی، دانشگاه آزد اسلامی واحد یاسوج، یاسوج، ایران

abstract background: the pressure of consumption spots in eater supply systems is one of the most important hydraulic parameters can be used in optimized management of water distribution networks. since the pressure has some different effects on various parameters of the network management including its hydraulic functions, reliability, stability and leakage, its control is of great importance ...

2003
P Bahukudumbi Ali Beskok

Rarefied gas flows in thin film slider bearings are studied in a wide range of Knudsen numbers (Kn) at low Mach number (Ma) with the objective of developing simple physics-based semi-analytical models. A recently developed modified slip boundary condition for steady plane Couette flows and a generalized high-order velocity slip boundary condition, developed and validated earlier for pressure-dr...

Journal: :Universe 2023

We generate the Einstein–Gauss–Bonnet field equations in higher dimensions for a spherically symmetric static spacetime. The matter distribution is neutral fluid with isotropic pressure. condition of pressure, an Abel differential equation second kind, transformed to first order nonlinear canonical equation. This provides mechanism exact solutions systematically dimensions. Our solution generat...

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