Preliminary Study on Reconstruction of Building Thermal Field Based on Iterative Algorithm Acoustic CT

Real-time acquisition and visualization of temperature anomalies in building spaces 3D field data during fires are vital importance for fire danger warnings, early rescue operations, evacuation commands, subsequent accident investigations. Taking into account the non-contact, global (planar spatial), high efficiency advantages acoustic CT measurement technology, this study involved conducting exploratory preliminary research order to provide new ideas real-time perception information on fires. The detailed objective was as follows: obtain at any time a based Fire Dynamics Simulator (FDS) fit them form base distribution diagram that time. large ill-conditioned matrix equation flight under scheme multi-grid division then constructed. discrete each grid space obtained by solving algebraic reconstruction algorithm (ART) joint (SART). three-dimensional realized interpolation data. effect evaluated through error analysis between basic results show thermal can be have significant control effect.