Browsing by Author "Barber, T"

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    Assessment of interface capturing methods in computational fluid dynamics (CFD) codes - a case study
    (Multi Science Publishing, 2009-06) Yeoh, GH; Barber, T
    This paper reports on an exemplary study of the performance of Computational Fluid Dynamics (CFD) computer codes for the case study of interfacial flows including surface tension. The finite volume codes of ANSYS, Inc., Fluent and CFX have been evaluated by performing CFD-simulations of collapsing water columns with and without an obstacle within enclosures. In both of these computer codes, the interfaces are treated by the volume of fluid method. The main difference is attributed to the absence of any surface reconstruction algorithms in ANSYS, Inc., CFX. Rather, the so-called “compressive scheme” is applied instead to overcome numerical diffusion and smearing of the interface. ANSYS, Inc., Fluent, however, employs the geometric reconstruction algorithm based on the Piecewise Linear Interface Construction (PLIC) method. The study assesses the simulation results obtained through the two computer codes by comparing against experimental observations and measurements as well as numerical predictions from other CFD codes if available. © 2009, Multi Science Publishing
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    Experimental and computational studies of compartment fire behavior training scenarios.
    (Elsevier, 2010-12) Mackay, D; Barber, T; Yeoh, GH
    Because of the substantial risk to fire fighter safety in fighting compartment fires, the New South Wales Fire Brigade (NSWFB) in Australia has implemented Compartment Fire Behavior Training (CFBT). The CFBT scheme equips fire fighters with the knowledge and experience required to effectively, efficiently and safely deal with this type of fire, via the use of a demonstration cell (in this case a shipping container) within which the fire fighter can experience, observe and deal with real flashover situations. A crib fire is used as the fuel source with the addition of several particle boards lining the closed end of the demonstration cell. In the current study, the CFBT demonstration cell has been studied both experimentally and computationally while the cell undergoes a variety of different conditions including fuel load and ventilation changes. This data will provide useful additional information in further assisting NSWFB fire fighters in their understanding of fire growth and smoke movement and by allowing them to extrapolate their experiences of handling other possible fires they may face in compartments. © 2010, Elsevier Ltd.