To provide scientific supports for the design and operation of W-shape flame boiler, the aerodynamic characteristics are investigated on a cold model, based on the Similarity Theory, the prototype is a 360 MW W-shape flame boiler with impellerless-flat burner imported from Stein Co. of France . The hot-wire anemometer is used to measure the velocity distribution of airflow field in the furnace. The velocity profiles of W-shape airflow field under different operating conditions are obtained. Regularities of ...