Numerical modeling of 3-D turbulent two-phase flow and coal combustion in a pulverized-coal combustor

In the present paper, a multifluid model of two-phase flows with pulverized-coal combustion, based on a continuum-trajectory model with reacting particle phase, is developed and employed to simulate the 3-D turbulent two-phase hows and combustion in a new type of pulverized-coal combustor with one primary-air jet placed along the wall of the combustor. The results show that: (1) this continuum-trajectory model with reacting particle phase can be used in practical engineering to qualitatively predict the flame stability, concentrations of gas species, possibilities of slag formation and soot deposition, etc.; (2) large recirculation zones can be created in the combustor, which is favorable to the ignition and flame stabilization.

Funcionamento dos guardas municipais nas principais capitais do país, considerando : a. se atuam com poder de polícia; b. se substituem a polícia militar na falta de efetivo desta instituição; c. se auxiliam a polícia militar no combate ao crime; d. se têm porte de arma; e e. se contribuem para a segurança pública

Consultoria Legislativa - Área XVII - Segurança Pública e Defesa Nacional.

Elastodynamic stress-intensity factors for a semiinfinite crack under 3-d combined mode loading

The dynamic stress intensity factor histories for a half plane crack in an otherwise unbounded elastic body are analyzed. The crack is subjected to a traction distribution consisting of two pairs of suddenly-applied shear point loads, at a distance L away from the crack tip. The exact expression for the combined mode stress intensity factors as the function of time and position along the crack edge is obtained. The method of solution is based on the direct application of integral transforms together with the Wiener-Hopf technique and the Cagniard-de Hoop method, which were previously believed to be inappropriate. Some features of solutions are discussed and the results are displayed in several figures.

[Discurso do Deputado Carmelo D'Agostino : Sessão da Câmara dos Deputados de 02 de maio de 1960]

Discurso proferido durante a 1ª Sessão da Câmara dos Deputados na nova capital do país, Brasília. Descreve as condições dos apartamentos para residência dos deputados e solicita providências.

Reproducción de Tarjetas de Visita remitidas por D. Sabino de Arana y Goiri a D. Estanislao de Aranzadi.

Fecha: 6-10-1898 (>1970 reproducción) / Unidad de instalación: Carpeta 25 - Expediente 23-1 / Nº de pág.: 2 (manuscritas)

Reproducción de una Cédula de Citación remitida a D. Juan Manuel Epalza por el Juzgado de Instrucción Nº 2.

Fecha: 15-3-1935 (>1970 reproducción) / Unidad de instalación: Carpeta 25 - Expediente 23-2 / Nº de pág.: 1 (mecanografiada)