CFD simulation of naked flame manikin tests of fire proof garments

• 3D transient CFD simulation of heat and mass transfer in the flame manikin test.
• The grid model, simulated from Donghua Flame Manikin, have accurate shape.
• Temperature and velocity fields of the whole chamber are obtained.
• Giving well predictions to the heat flux distribution of a calibration experiment.
• Helpful for further study on burns prediction and clothing thermal protection.

The overall performance of the thermal protective clothing can only be evaluated using an assessment based on an instrumented manikin under defined, close to real-life conditions in a laboratory. However, the manikin tests can only give a few of pointwise information. This paper presents a three-dimensional transient CFD simulation of heat and mass transfer in the flame manikin test of thermal protective clothing. The used grid model, simulated from Donghua Flame Manikin, have real dimensions and accurate shape of a typical Chinese man. The solver and physical models are defined in FLUENT system and the CFD simulation of a naked flame manikin test is accomplished. By means of CFD simulation, temperature and velocity fields on the manikin surface and of the whole chamber during the process of 4-second flash fire combustion are obtained, which give well predictions to the heat flux distribution in an average sense. The cumulative curve of heat fluxes in the CFD simulation is close to the curve measured by 135 sensors in the real manikin experiment. The study could be a foundation for further study on modeling heat and mass transfer in the clothed manikin experiment and predicting skin damage accurately.