Adjoint System
Mostrando 1-4 de 4 artigos, teses e dissertações.
-
1. AnÃlise de sensibilidade do modelo fluidodinÃmico de um Riser atravÃs do formalismo diferencial perturbativo / Sensitivity analysis for a fluid-dynamic model of a riser via the differential pertubation method
In an oil refinery, the crude oil is pre-heated in order to promote the cracking of the large hydrocarbon chains, transforming the heavy oil into lighter components. These lighter and vaporized oil (gas oil) is now submitted to a fluid catalyst cracking inside a long column denominated riser, where an ascending mixture of gas oil and solid catalyst are simul
Publicado em: 2007
-
2. Sensitivity analysis of shallow water problems via perturbative methods
We applied the perturbative theory to perform sensitivity analysis of the shallow water equations. The numerical solution of these equations was found via the mass lumping finite element technique. Then, the adjoint system of the shallow water equations was derived for the one-dimensional case and the expression of the sensitivity coefficient of a generic fu
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2006-09
-
3. ESTADOS SEMICLÁSSICOS NA GRAVIDADE QUÂNTICA / SEMICLASSICAL STATES IN QUANTUM GRAVITY
Loop quantum gravity (LQG) is currently one of the most promising approaches to describing general relativity in quantum terms. One of its key issues is to detect in the quantum theory semiclassical states whose macroscopic properties are the same as those of specific configurations of the classical theory. In this dissertation, we begin by presenting the LQ
Publicado em: 2006
-
4. Sensitivity computations using first and second orders perturbative methods for the advection-diffusion-reaction model of pollutant transport
This work aims to apply the disturbance theory to accomplish sensitivity computations in problems of pollutant transported in liquid media modeled through the advection-diffusion-reaction equation. The numerical solution of the differential equation that describes the behavior of the system was found via the SUPG ("Streamline Unwinding Petrov Galerkin") fini
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2003-03