NIST logo

Publication Citation: Velocity and Drop Size Distriutions Downstream Generic Clutter Elements Found Within Engine Nacelles

NIST Authors in Bold

Author(s): P J. Disimile; J R. Tucker; Joe Stern; Luke Mehl; B Croswell;
Title: Velocity and Drop Size Distriutions Downstream Generic Clutter Elements Found Within Engine Nacelles
Published: January 01, 2004
Abstract: The current work is presented as part of an effort to help develop a spray transport model that would be used within the computational fire code currently under development by Sandia National Laboratory. As part of a halon replacement research program, new high-boiling-point chemical suppressants have been identified. These agents would discharge in a liquid state, breaking into liquid droplets, and be entrained within the flow passing through the nacelle, impinging on various objects prior to reaching the fire zone. The goal of this research effort is to enhance the fundamental knowledge of spray interactions with clutter (e.g., obstacles representing fuel and hydraulic lines, electrical wire bundles, etc). Three-dimensional velocity and diameter data was collected at two locations downstream for nine combinations of clutter spacing and coflow airspeed. Analysis of velocity and diameter data consisted of polynomial regression and trigonometric analysis, which enabled the construction of mathematical correlations for the data.
Citation: NIST SP - 984-4
Research Areas: Building and Fire Research
PDF version: PDF Document Click here to retrieve PDF version of paper (733KB)