• Fatemeh Behbahani Department of Mechanical Engineering, Ahvaz Branch, Islamic Azad University, Ahvaz,Iran
  • mahdi Hamzei Department of Mechanical Engineering, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran
  • zahra Mehrdoost Department of Mechanical Engineering, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran
  • Mohammad Moghiman Department of Mechanical Engineering, Ferdowsi University, Mashhad, Iran



FDS; Fire accident; Temperature; Visibility; fan system.


The study of temperature and visibility in the parking of the commercial complex was done by Fire Dynamic Simulator code with various fire accident. Specification fire of parking were obtained in different fan system conditions. Temperature and visibility of a stairwell on various conditions were contrasted. The values ​​were obtained at a height of 1.6m. The results showed that in the first state, temperature and visibility reached 80°C and 1 meters in 1200s after the fire, respectively. In the second state, visibility reached 6.34m in 1200s, which was 6.34 times better than the first state. The temperature also decreased to 51.11°C in 1200s. The temperature improved by 36.19% ​​compared to the first state. In the third state, after 1200s, the temperature decreased 44.72°C. In the third state, the visibility was 15.59m, which improved 15.59 times the first state


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How to Cite

F. Behbahani, mahdi . Hamzei, zahra Mehrdoost, and M. Moghiman, “NUMERICAL SIMULATIONS ON VISIBILITY AND TEMPERATURE IN A CAR PARK OF A COMMERCIAL BUILDING”, JME, vol. 18, no. 4, pp. 141–144, Dec. 2023.