Combined Conduction and Radiation Heat Transfer in Plane-Parallel Packed Beds With Variable Porosity

Communication: Multi-state analysis of the OCS ultraviolet absorption including vibrational structure

“…1 Many laboratory studies [2][3][4][5][6] have been performed to unravel the apparently complex photodissociation dynamics of OCS in the first absorption band (222 nm). 7,8 Despite the numerous experiments several open questions remain, including the role of the 1 A states 5 and the origin of the vibrational structures of the absorption spectrum. The very few existing theoretical analyses 3,9 were helpful to explain the coarse dissociation dynamics, but a comprehensive understanding in terms of quantum dynamics on accurate potential energy surfaces (PES) including several states is overdue.…”

“…The focus here is the absorption spectrum, namely the contributions of the various excited states and the vibrational structures at the center of the band around 220 nm (Ref. 8) and at its onset around 280 nm. 7 We show that these structures have different electronic and vibrational origins than in the electronic spectrum of N 2 O.…”

Heat Transfer in Complex Fluids

“…6 Equation (36) is really our first approximation (Wu & Chu, 1999;Miller & Weaver, 2003) and a more appropriate one for the case of granular materials might be to introduce into the equation a function for the dependence of the volume fraction, for example, …”

Flow of a non‐linear (density‐gradient‐dependent) viscous fluid with heat generation, viscous dissipation and radiation

“…Two options are available to us: (i) we can impose a distribution function, which could be a constant number, for at the wall, based on experimental results (practically this may mean gluing particles) or (ii) we can give an average value for integrated over the cross-section (a measure of the amount of particles). These ¶ The importance of radiation boundary condition for composite plates is discussed by Miller and Weaver [50], for fluid-particle flow by Chamkha [51] and for packed beds by Wu and Chu [52]. Equation (23c) is really our first approximation and a more appropriate one for the case of granular materials might be to introduce into the equation a function for the dependence of the volume fraction; for example, q = f ( ) ( 4 H − 4 s ).…”