PREDICTING WILDLAND FIRE BEHAVIOR AND EMISSIONS USING A FINE-SCALE PHYSICAL MODEL

International audienc

MODELING THERMAL IMPACT OF WILDLAND FIRES ON STRUCTURES IN THE URBAN INTERFACE. PART 2: RADIATIVE IMPACT OF A FIRE FRONT

International audienc

Thermal response of an unprotected structural steel element exposed to a solid rocket propellant fire

International audienceThe thermal response of an unprotected structural steel element exposed to a solid rocket propellant fire is investigated. A 2 kg aluminized composite propellant Butalane (R) is positioned onto a 5 mm steel plate and ignited with a torch in the experiments. Radiative and convection-dominated heat transfer regions are observed, with the latter dominating the heating of the plate to a maximum of 820 K. Results obtained from thermal modeling reproduce the experiments well in terms of time evolutions of the structural element temperature. (C) 2016 Elsevier Masson SAS. All rights reserved

An investigation of highly pressurized transient fluid flow in pipelines

This paper discusses transient processes in natural gas pipelines. The method of characteristics (MOC) is applied for the analysis of two transient categories, where the governing one-dimensional, hyperbolic conservation equations are linearized and solved without neglecting any of their term. First, we present a parametric study of the pressurized flow encountered when pipelines are utilized for the transportation or the temporary storage of natural gas. The non-ideal compressibility of natural gas is included in the model and its impact on the thermo-hydraulic processes is elucidated. Second, we model the hydrodynamics of a pipeline whose downstream boundary is a periodic discharge rate. The results show that, in response to these boundary conditions, the pressure distribution in the pipeline also undergoes periodic variations. Furthermore, our simulation results confirm the usefulness of MOC for numerical simulation of flow phenomena in pipeline