Heat Release Rate (Q) in kW: Density (ρ∞) in kg/m³: Specific Heat (cₚ) in kJ/kg-K: Ambient Temperature (T∞) in K: Gravity (g) in m/s²: Xmin: Xmax: Ymin: Ymax: Zmin: Zmax: Calculate Mesh Sizes
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Author: Andrea
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Simple radiator
In this FDS example a simple radiator in a room is simulated. 1. Description In a room with dimensions of 4 x 3 x 3 m, the radiator is simulated by modeling obstruction with a high surface temperature. 2. Mesh The computational volume is divided into several meshes.The meshes increase in definition as their proximity to the radiator […]
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FDS Mesh size calculator
This Mesh size calculator for FDS was originally developed by Kris Overholt (website). The script finds the optimal (Poisson-friendly) MESH division numbers and generate the MESH lines ready to be placed in the FDS input file. The FDS tool generate 3 different MESH lines corresponding to different resolutions (coarse, medium, fine). It will be up […]
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Simple Air Conditioning in a Room
In this FDS example a simple HVAC system in a room is simulated. 1. Description In a room with dimensions of 5.4 x 3.6 x 2.82 m, the HVAC system is simulated by introducing and extracting air. Initial ambient temperature: 27 ° C Air inlet temperature: 17 ° C. As you will see in the […]
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Fire related Articles and Studies
Through the following search bar it is possible to find articles, studies, experiments related to fire modeling and fire in general.The search engine was developed, with Google technology, to allow searches in the most important databases of scientific publications relating to the fire-fighting sector in the world. Search Engine – Fire related Articles and Studies
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Fire Dynamics Tools (FDTs)
The U.S. Nuclear Regulatory Commission (NRC) has developed quantitative methods, known as Fire Dynamics Tools (FDTs), for analyzing the impact of fire and fire protection systems in nuclear power plants (NPPs). These methods have been implemented in Microsoft Excel® spreadsheets, which are publicly available at the official U.S. NRC website. You can download the spreadsheet you need from […]
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Simple Supply and Exhaust Vents
In this short tutorial you will learn how to model simple supply and exhaust vents. 1. Geometry and duration In this example we will model an exhaust and a supply vent in a 3 m x 4 m x 3 m room: &MESH XB= 0, 3, 0, 4, 0, 3, IJK= 30, 40, 30 / […]
In this Smokeview tutorial you will learn how to use the basic functions of the software. 1. Opening a Smokeview file To open a Smokeview file (.smv) you just have to double click on it. Two windows should now be opened by the software: In the “visualization window”, Smokeview will automatically show the geometry of […]
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Radially spreading fire
In this tutorial you will learn how to model a Radially Spreading Fire, both on a flat plane and among obstructions. All of this will be accomplished without modeling the pyrolysis of the solid fuels directly. 1. Why model a radially spreading fire? This function is commonly used to emulate a realistic fire growth/spread. It […]
In this tutorial you will learn how to remove obstructions during a simulation in FDS. 1. Introduction Devices can be used to control various actions. One of the most frequent controls implemented in a FDS simulation is the removal (or creation) of an obstruction. In this tutorial we will remove obstructions using basic control actions. […]