CFD assessments within strongly transient domains

Research output: Contribution to conferencePaper

2 Citations (Scopus)
38 Downloads (Pure)

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.
Original languageEnglish
Pages945-951
Number of pages6
Publication statusPublished - 2007
Event10th IBPSA Conference on Building Simulation 2007 - Beijing, China
Duration: 3 Sep 20076 Sep 2007

Conference

Conference10th IBPSA Conference on Building Simulation 2007
CountryChina
CityBeijing
Period3/09/076/09/07

Fingerprint

transient flow
flow pattern
airflow
ventilation
control system
skin
weather
climate
prediction
simulation
environmental control
fabric

Keywords

  • ventilation systems
  • cfd assessments
  • building simulation

Cite this

Samuel, A. A. A., & Hand, J. (2007). CFD assessments within strongly transient domains. 945-951. Paper presented at 10th IBPSA Conference on Building Simulation 2007, Beijing, China.
Samuel, A.A.A. ; Hand, J. / CFD assessments within strongly transient domains. Paper presented at 10th IBPSA Conference on Building Simulation 2007, Beijing, China.6 p.
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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 withoccupant interventions, control actions or changing climate. Such domains (e.g. double skin fa{\cc}ades) are characterised by transient flow patterns due tochanging weather patterns, actuation of dampers intermittent opening of fa{\cc}ade 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 tochanges in ambient conditions, damper actuation, fa{\cc}ade openings and intermittent flow from mechanical ventilation systems.",
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Samuel, AAA & Hand, J 2007, 'CFD assessments within strongly transient domains' Paper presented at 10th IBPSA Conference on Building Simulation 2007, Beijing, China, 3/09/07 - 6/09/07, pp. 945-951.

CFD assessments within strongly transient domains. / Samuel, A.A.A.; Hand, J.

2007. 945-951 Paper presented at 10th IBPSA Conference on Building Simulation 2007, Beijing, China.

Research output: Contribution to conferencePaper

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AU - Hand, J.

PY - 2007

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N2 - Assessments based on CFD snapshots of stable conditions within strongly transient domains do not address many aspects of performance associated withoccupant interventions, control actions or changing climate. Such domains (e.g. double skin façades) are characterised by transient flow patterns due tochanging 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 tochanges in ambient conditions, damper actuation, façade openings and intermittent flow from mechanical ventilation systems.

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KW - cfd assessments

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Samuel AAA, Hand J. CFD assessments within strongly transient domains. 2007. Paper presented at 10th IBPSA Conference on Building Simulation 2007, Beijing, China.