Fire & Smoke Propagationt

Engineers and architects designing fire and smoke management systems for buildings, subways and other facilities must be mindful of three key factors: safety of the occupants, structural integrity of the facility, and adherence to government regulations. The task of considering all the variables that comprise fire safety system design — including detection and ventilation — is monumental.

The key to managing fire and smoke starts with understanding the multiple physics phenomena that underlie how fires start, develop and affect a structure. For example, based on the building’s specific layout, how and when might a toxic gas develop, where will it spread, and what triggers it to explode? Virtual testing is the most cost-effective and accurate means of determining these factors. It is also the best way to develop systems to prevent and manage fire.

Software from ANSYS allows designers to test variables virtually, to simulate the many possible scenarios and ultimately create the safest systems possible.


A combination of unequalled physics depth and breadth makes ANSYS the right simulation tool for the fire safety industry. The software incorporates:

  • A wide range of turbulence models including RANS and LES
  • A variety of combustion models
  • State-of-the-art grey and spectral radiation solvers
  • Conjugate heat transfer
  • One- and two-way thermal and mechanical coupling
  • Analysis of atmospheric wind on confined or unconfined fires