نتایج جستجو برای: mhd eyring fluid model

تعداد نتایج: 2291146  

2012
D. D. Schnack D. C. Barnes Ping Zhu C. C. Hegna C. R. Sovinec

We have verified the NIMROD code by direct comparison with analytic solutions for the case of a plasma with uniform equilibrium density and electron temperature, but with a small gradient of the equilibrium ion temperature, in Cartesian slab geometry. Analytic solutions of the two-fluid and Extended MHD equations in the local approximation and ballooning ordering are developed. The requirement ...

Journal: :Magnetic resonance in medicine 2015
Waltraud B Buchenberg Wolfgang Mader Georg Hoppe Ramona Lorenz Marius Menza Martin Büchert Jens Timmer Bernd Jung

PURPOSE Blood flow causes induced voltages via the magnetohydrodynamic (MHD) effect distorting electrograms (EGMs) made during magnetic resonance imaging. To investigate the MHD effect in this context MHD voltages occurring inside the human heart were simulated in an in vitro model system inside a 1.5 T MR system. METHODS The model was developed to produce MHD signals similar to those produce...

2008
M Eleuteri

A uniqueness result for a parabolic partial differential equation with hysteresis and convection is established. This equation is a part of a model system which describes the magnetohydrodynamic (MHD) flow of a conducting fluid between two ferromagnetic plates. The result of this paper complements the content of [6], where existence of the solution has been proved under fairly general assumptio...

2011
GAMZE YUKSEL

We consider the finite element method for time dependent MHD flow at small magnetic Reynolds number. We make a second (and common) simplification in the model by assuming the time scales of the electrical and magnetic components are such that the electrical field responds instantaneously to changes in the fluid motion. This report gives a comprehensive error analysis for both the semi-discrete ...

The present analysis deals with an unsteady magnetohydrodynamic flow of Eyring-Powell nanofluid over an inclined permeable stretching sheet. Effects of thermal radiation, Joule heating, and chemical reaction are considered. The effects of Brownian motion and thermophoresis on the flow over the permeable stretching sheet are discussed. Using Runge-Kutta fourth-order along with shooting technique...

2017
Peng Lu Xingwen Zheng Lulu Fang Hulin Huang Shu Xu Yezhen Yu

Liquid metal MHD (Magneto-Hydro-Dynamic) systems can be employed to produce electricity from a wide range of heat resources. In such a system, a low-boiling organic fluid and a high-temperature liquid metal fluid mix. The former evaporates, and carries the latter to flow through an MHD channel, where the electricity is generated. The mixing process and the gas-liquid flow characteristics will h...

2014
G. Sarojamma

The effect of variable thermal conductivity and thermal radiation on heat and mass transfer in the MHD flow of a Casson fluid over a porous stretching sheet is investigated. The governing non-linear partial differential equations for the flow, heat and mass transfer are solved by employing the Runge-Kutta fourth order method along with shooting technique. The velocity, temperature and concentra...

2014
Md. Nasir Uddin M. A. Alim M. M. K. Chowdhury

This analysis is performed to study the momentum, heat and mass transfer characteristics of MHD mixed convective flow past inclined porous plate in porous medium, including the effect of fluid suction. The fluid is assumed to be steady, incompressible and dense. Similarity solution is used to transform the problem under consideration into coupled nonlinear boundary layer equations which are the...

Journal: :Journal of food science 2011
Lihan Huang Andy Hwang John Phillips

The objective of this work is to develop a mathematical model for evaluating the effect of temperature on the rate of microbial growth. The new mathematical model is derived by combination and modification of the Arrhenius equation and the Eyring-Polanyi transition theory. The new model, suitable for both suboptimal and the entire growth temperature ranges, was validated using a collection of 2...

Journal: :Journal of Plasma Physics 2021

We present two generalized hybrid kinetic-Hall magnetohydrodynamics (MHD) models describing the interaction of a two-fluid bulk plasma, which consists thermal ions and electrons, with energetic, suprathermal ion populations described by Vlasov dynamics. The dynamics components are governed standard fluid equations in Hall MHD limit electron momentum equation providing an Ohm's law pressure term...

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