PHYSICAL FLOW MODELING OF CONTAMINANTS IN A FRIGATE CLEANSING STATION

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Authors
  1. Kiel, D.E.
  2. Jones, D.R.
  3. Wilson, D.J.
Corporate Authors
Defence Research Establishment Suffield, Ralston ALTA (CAN);Coanda Research and Development Corp, Burnaby BC (CAN)
Abstract
The report reviews the findings of an experimental study designed to evaluate the performance of decontamination facilities located onboard Canadian Navy Frigates. The study was performed by Coanda Research and Development Corporation for Defence Research Establishment Suffield. The objectives of the study were to: - determine the overall effectiveness of existing decontamination facilities; - provide experimental data to validate previous computational simulations; - and develop a platform for the evaluation and optimization of new designs. Experiments were performed using a 1:8 scale model to determine the quantity of contaminated exterior air present in the outer three rooms of the decontamination facility. In addition to modeling the ventilation flow and the motion of the doors, the buoyancy driven flow caused by a difference between the indoor and outdoor temperature was also simulated. Qualitative flow visualization techniques were used to determine the flow distribution and contaminant migration within the rooms. Point concentration measurements were obtained at selected locations, and the final average contaminant concentrations within each room were also measured. The overall performance of the cleansing facility was found to be very sensitive to the relative magnitude of the indoor and outdoor temperatures. The essential findings are therefore presented for three different temperature ranges.
Report Number
DRES-CR-97-24;CRDC-97011 — Contractor Report
Date of publication
15 Jun 1997
Number of Pages
100
DSTKIM No
97-04037
CANDIS No
505134
Format(s):
Hardcopy;Document Image stored on Optical Disk

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