- Author
- Carpenter, D. J.
- Title
- Investigation Into the Validity of Modeling Post-Flashover Fires and Flame Extension From Openings With the Fire Field Model JASMINE.
- Coporate
- Worcester Polytechnic Inst., MA
- Report
- Thesis, August 1996, 216 p.
- Keywords
- fire models | field models | flashover | mathematical models | combustion | radiation modeling | fire tests
- Identifiers
- JASMINE
- Abstract
- This thesis work uses the fire field model JASMINE developed in England at the fire Research Station. The program is an expanded version of a generalComputational fluid Dynamics (CFD) package titled PHOENICS. JASIME incorporates a simplistic, yet widely used, combustion model that has been validated over the past ten years in the modeling of a shopping mall, room fire tests, an aircraft cabin, a railroad tunnel fire, an air-supported structure, and a hospital ward. These simulated fires were generally characteristic of pre-flashover fire conditions. This thesis attempts to investigate wheter JASMINE can predict conditions, inside and outside, a post-flashover compartment fire. The fire tests modeled were conducted at the National Research Council in Canada. The test data will form the comparisons for the predicted results for preliminary validation of the model. The data includes, thermocouple readings, radiation flux data, and photos of flame extension from the compartment. The JASMINE simulations used a 48 x 26 x 52 grid to model two adjacent compartments connected by an opening. The first compartment contained two propane burners and a thermocouple tree. The second and larger one contained flux meters and thermocouples placed on a 3.5 meter section of the wall directly above the opening between the compartments. Six separate configurations of the fire compartment were tested on six separate days. Changes in configuration included raising the ceiling of the fire compartment and blocking the opening between compartments. For each case, the flow rate of the propane was varied and held steady for 5 minutes before increasing the flow rate to the next steady-state condition.