calculating thermal radiation fields from 3d flame reconstruction
Designing fire safety into a building requires a designer to think through issues that include fire ignition, growth and spread. Radiative heat transfer from flames is the dominant method of spread. It is, therefore, necessary to determine the thermal radiation field surrounding a fire. This can be estimated from the size and shape of the flame. In this paper we present a method to determine flame size and shape using image-processing techniques. The images of the fire are recorded using multiple cameras. Once the surface of the flame has been defined it is possible to calculate the heat flux at a given target. By repeating this process for multiple targets we can build up a thermal radiation field. This can then be used to find out which adjacent objects are threatened and which are safe.
thermal radiation field heat flux flame geometry configuration factor radial basis function