Installation Effects of Ultrasonic Flowmeter in Single Bend Pipe

摘要

The downstream flow of 90°single bend was investigated by computational fluid dynamics (CFD). An acoustic transit time flowmeter was exposed to the downstream flow at various positions. Measurement errors with different meter configurations and effects of pipe wall roughness were discussed. Numerical simulation results of three diameter pipes 0.1m, lm and 10m with increasing the roughness from 0 to lmm were presented within Reynolds number (Re) range from 5x 103 to 5xlO6.