Numerical Simulation of an ADSS With Surface Heat Flux and Heat Generation Using FEM
01 Jan 2005-pp 105-113
TL;DR: In this paper, a finite element method based on Streamline Upwind Petrov-Galerkin (SUPG) technique was used to solve the time-dependent governing equations for conservation of mass, momentum and energy.
Abstract: ADSS (Accelerator Driven Sub-critical System) nuclear reactors have evoked renewed interest in research because it operates in sub-critical conditions and transmutes nuclear wastes. Numerical investigation of fluid flow and heat transfer characteristics of an ADSS has been accomplished using a finite element method based on Streamline Upwind Petrov-Galerkin (SUPG) technique. The time-dependent governing equations for conservation of mass, momentum and energy are solved. The simulations have been carried out to predict the heat transfer in the spallation regime. The cases of beam window with heat flux prescription is analyzed in the absence and presence of heat generation in the liquid metal. At the first place, laminar regime of the flow is considered for the ADSS geometry. The Reynolds number of interest were varied over a specified range.Copyright © 2005 by ASME
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TL;DR: In this paper, a new technique is described for the numerical investigation of the time-dependent flow of an incompressible fluid, the boundary of which is partially confined and partially free The full Navier-Stokes equations are written in finite-difference form, and the solution is accomplished by finite-time step advancement.
Abstract: A new technique is described for the numerical investigation of the time‐dependent flow of an incompressible fluid, the boundary of which is partially confined and partially free The full Navier‐Stokes equations are written in finite‐difference form, and the solution is accomplished by finite‐time‐step advancement The primary dependent variables are the pressure and the velocity components Also used is a set of marker particles which move with the fluid The technique is called the marker and cell method Some examples of the application of this method are presented All non‐linear effects are completely included, and the transient aspects can be computed for as much elapsed time as desired
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TL;DR: In this paper, the velocity distribution and reattachment length of a single backward-facing step mounted in a two-dimensional channel were measured using laser-Doppler measurements.
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