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ANSYS, Inc., “ANSYS CFX-Solver Theory Guide,” ANSYS, Inc., Canonsburg, 2013.

has been cited by the following article:

  • TITLE: Study on Stack Effect of Stairwell by Numerical Model of Leakage Flow through Gap of Door

    AUTHORS: Jung-Yup Kim, Ji-Seok Kim

    KEYWORDS: Stack Effect; Leakage Flow; Gap of Door; Momentum Loss Model; Separation Door; Numerical Analysis

    JOURNAL NAME: Open Journal of Fluid Dynamics, Vol.3 No.4, November 15, 2013

    ABSTRACT: Since stack effect that occurs in high-rise buildings has an effect on the indoor environment of the buildings, energy loss and smoke control in case of a fire, there is a need to conduct research on this. For an analysis of the stack effect, analysis methods on the leakage flow through gap of interior door shall be formulated. Until now, studies related to the gap leakage flow in buildings have mainly analyzed flow field and pressure in the buildings one-dimensionally using pressure difference-leakage flowrate relations of Orifice Equation and a network numerical analysis algorithm that as- sumes each compartment in the buildings as a single point. In this study, the Momentum Loss Model which enables pressure drop to be proportional to the flow velocity through the gap of door in computational domain of 3-dimensional numerical analysis was proposed to reflect the gap flow phenomenon effectively in 3-dimensional numerical analysis. Using the proposed model, 3-dimensional numerical analysis of the stack effect on the stairs in buildings was performed, and the effects of separation door and lobby between stair and accommodation on the stack effect were investigated.