RESEARCH OF MEASURING CONCENTRATION OF ENTRAINED AIR IN HIGH-VELOCITY AND SEDIMENT-LADEN FLOW DURING MODEL EXPERIMENT BY NUCLEAR TECHNOLOGY
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Abstract
Method and technical problems in measuring the concentration of entrained air in the high-velocity and sediment-laden flow during model test by utilizing the γ-ray absorption principle are described. By preliminary analysis, it is found that the errors resulting from the measurement of entrained air by using the method of radioassay are less than±0.25%. Satisfactory results have been obtained in practical applications. The method is non-contacting and will not disturb the flow conditions. The measurement can be done rapidly with reliability.
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