The angle of deflection of a flow passing through an oblique wire gauze was studied theoretically and experimentally. The deflections of flow were measured for five kinds of wire gauzes having different degrees of solidity at setting angles of 30 to 75 degrees, and these measured values were between 80 and 90% of the theoretical value. An application to divergent nozzles was also described, where flow observation and velocity-distribution measurement were carried out for a model divergent nozzle equipped with two oblique wire gauzes.