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Numerical Uncertainty in Simulation of Room Ventilation
Numerical solutions for fluid dynamic problems must be validated using experimental results. Uncertainties of the numerical scheme and in the experimental data as well as the physical input parameter values must be considered. The American Society of Mechanical Engineers published a standard procedure which accounts for these factors. This standard is used here as the basis for a procedure to determine the uncertainty in velocity magnitude values obtained from a numerical simulation of air flow within a small room using a commercial solver. The interior of the room includes occupants, computers, desks, cabinets and ceiling lights. Cold air is supplied to the room through a diffuser on one of the walls while warm air exits through a vent in the ceiling. The relative importance each factor contributes to the overall uncertainty is investigated to demonstrate the technique. Aspects of the standard are investigated and modifications suggested which simplify its application.
Numerical Uncertainty in Simulation of Room Ventilation
Numerical solutions for fluid dynamic problems must be validated using experimental results. Uncertainties of the numerical scheme and in the experimental data as well as the physical input parameter values must be considered. The American Society of Mechanical Engineers published a standard procedure which accounts for these factors. This standard is used here as the basis for a procedure to determine the uncertainty in velocity magnitude values obtained from a numerical simulation of air flow within a small room using a commercial solver. The interior of the room includes occupants, computers, desks, cabinets and ceiling lights. Cold air is supplied to the room through a diffuser on one of the walls while warm air exits through a vent in the ceiling. The relative importance each factor contributes to the overall uncertainty is investigated to demonstrate the technique. Aspects of the standard are investigated and modifications suggested which simplify its application.
Numerical Uncertainty in Simulation of Room Ventilation
Aczel, Aaron Alexander (author)
2014-01-01
Electronic Theses and Dissertations
Theses
Electronic Resource
English
Room Ventilation , Uncertainty , GCI , HVAC , CFD
DDC:
690
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