MHD Flow Behavior and Performance of Middle Scale Nonequilibrium Subsonic Disk MHD Generator

شبیه‌سازی عددی جریان دوبعدی در ژنراتور هیدرودینامیک مغناطیسی مقطع ثابت فروصوت و بررسی اثر آن بر عملکرد سیکل ترکیبی سه‌گانه

In this research, Magneto-Hydro-Dynamic subsonic flow in a MHD generator has been simulated and its effect on efficiency and power generation of a triple cycle has been investigated. A 2D constant cross-section Faraday channel with segmented electrodes was used as MHD generator. MHD flow was assumed steady and compressible with ideal five-wave model MHD equations. Navier-Stokes equations were ...

Analysis of Disk AC MHD Generator Performance by Finite Element Method

This paper studies the possibility to generate alternating current (AC) electrical power by using disk MHD generator. Its phenomenon is performed by the finite element method (FEM). The configuration of generator consists of a channel, an insulator and stators. The shape of channel is a flat disk, the liquid metal used as conductor flows inside the channel. As a channel wall, an insulator is us...

MHD Disk Winds in PNe and pPNe

Winds from accretion disks have been proposed as the driving source for precessing jets and extreme bipolar morphologies in Planetary Nebulae (PNe) and proto-PNe (pPNe). Here we apply MHD disk wind models to PNe and pPNe by estimating separately the asymptotic MHD wind velocities and mass loss rates. We show that the resulting winds can recover the observed momentum and energy input rates for P...

MHD simulations of disk-star interaction

We discuss a number of topics relevant to disk-magnetosphere interaction and how numerical simulations illuminate them. The topics include: (1) disk-magnetosphere interaction and the problem of disk-locking; (2) the wind problem; (3) structure of the magnetospheric flow, hot spots at the star’s surface, and the inner disk region; (4) modeling of spectra from 3D funnel streams; (5) accretion to ...

Disk Mhd Conversion System for Nerva Reactor