Instantaneous measurement of full concentration fields based on CCD;

Numerical simulation of airflow and concentration field for large-space clean factory buildings with stratified air conditioning;

Experimental study on change in concentration field of six-corner tangentially fired boiler;

In order to study the influence of pollution sources on indoor air quality under condition of displacement ventilation,K-ε turbulent model and physical model which treats CO_2 as the granulate pollutant are applied to give a numerical simulation analysis of the density field of airflow in a room with two-dimensional physical model.

It imposes gradually changing of special particle size and diaphaneity in density field,achieves realistic effect of smog,reaches the intent of reducing particle number.

Through the computation model,general CFD software PHOENICS is used to simulate the gas efflux speed and concentration fields.

Results demonstrated that the distribution of internal gas-phase pressure and the basic characteristics of particle-phase concentration fields, which clarified the viability of CFD technique application in predictions of performance and effectiveness of projects and products.

According the theory of efflux the models are setup for simulating speed and concentration fields.