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CFD assessments within strongly transient domains

Samuel, A.A.A. and Hand, J. (2007) CFD assessments within strongly transient domains. In: 10th IBPSA Conference on Building Simulation 2007, 2007-09-03 - 2007-09-06, Beijing.

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Abstract

Assessments based on CFD snapshots of stable conditions within strongly transient domains do not address many aspects of performance associated with occupant interventions, control actions or changing climate. Such domains (e.g. double skin façades) are characterised by transient flow patterns due to changing weather patterns, actuation of dampers intermittent opening of façade windows and operation of building environmental systems. Importing boundary conditionsfrom whole building simulation is an improvement but it discounts the impact of the flow predictions on the building domain. A transient approach is suggested which is fully coupled to flow and thermal solvers for the building fabric, environmental control systems and air flow regime. The paper reviews a number of patterns of flow evolution in strongly transient domains in response to changes in ambient conditions, damper actuation, façade openings and intermittent flow from mechanical ventilation systems.

Item type: Conference or Workshop Item (Paper)
ID code: 9431
Keywords: ventilation systems , cfd assessments, building simulation, Mechanical engineering and machinery
Subjects: Technology > Mechanical engineering and machinery
Department: Faculty of Engineering > Mechanical and Aerospace Engineering
Depositing user: Strathprints Administrator
Date Deposited: 21 Jul 2011 13:24
Last modified: 15 Apr 2015 10:01
URI: http://strathprints.strath.ac.uk/id/eprint/9431

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