Wet steam flow study

Research on steam turbines is reported. Data cover: (1) the behavior of thin liquid films on stationary blading, deposited by the traversing wet steam flow in the low pressure end of modern large steam turbines (particularly in nuclear plants where the steam quality is especially low), which lead to a major erosion problem when shed droplets impact the next downstream moving blade row; and (2) the behavior of thin liquid films under high void fraction boiling conditions, where 'dry-out' problems become involved. This latter condition is typical of that which would exist if emergency cooling circuits of a liquid cooled reactor were activated after a loss of pressure accident.