mproved model for simulating indoor suspended particles

Analyses the methods and models used in simulating twophase flow. For the purpose of researching the suspended particle distribution in the clean room where the particle volume fraction is extremely low, advances an improved particle model for treating the particle phase as a continuum in the Eulerian frame and using the local particle turbulent intensity and local concentration gradient to simulate the turbulent dispersion of particles. In order to validate the accuracy of the model, simulates the distribution of suspended particles in a clean room with supplying air in whole ceiling and exhausting air in low side wall. Comparing the results obtained to those from other models and experimental data, finds that the improved particle model is much better than other models in accuracy and consistent with the experimental data.