Categories
Advanced Topics

FDS Mesh Sensitivity Analysis Example

The following presents an example of mesh sensitivity analysis for an office fire scenario, aiming to evaluate how mesh resolution affects simulation results. Key Inputs: Characteristic Fire Diameter and Initial Mesh Selection Before running the simulations, the Characteristic Fire Diameter (D*) is calculated. This parameter provides a guideline for selecting an appropriate initial mesh size. […]

Categories
Advanced Topics

Mesh Sensitivity Study in FDS: Concepts, Practice, and Interpretation

In Fire Dynamics Simulator (FDS), a mesh sensitivity study is the process used to verify that simulation results are controlled by the modeled fire physics rather than by the numerical resolution of the computational grid. This step is essential for any simulation intended to support engineering decisions, because an inadequate mesh can produce apparently reasonable […]

Categories
Advanced Topics

Heat Release Rate (HRR) Curve: A Comprehensive Guide

The Heat Release Rate (HRR) is the single most important variable in fire hazard analysis. It serves as the primary driver for all quantifiable fire effects, including compartment temperatures, smoke transport, and the activation of fire protection systems. This article explains how to calculate the Heat Release Rate (HRR) curve, a key variable in fire […]