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Normalized drawdown e <br />/a <br />as a function of dimensionless <br />• w <br />o <br /> recovery time Tr for a= 10-5. <br /> aw~ao <br /> <br /> Tr <br /> ro = D.25 ro = 2.5 ro = 25.0 To = 250. D <br /> 0.01 --- --- 0.999 0.999 <br /> 0.05 0.995 0.984 _ 0.987 0.989 <br /> 0.10 0.992 0.969 0.974 0.978 <br /> 0.25 0.971 0.926 0.938 0.947 <br /> 0.50 0.827 0.851 0.878 0.895 <br /> 1.0 0.701 0.741 0.781 D.811 <br /> 2.5 0.469 0.494 0.561 0.620 <br />-t <br />5.0 <br />0.242 <br />0.265 <br />0.348 <br />0.432 <br /> 10.0 0.088 0.103 0.171 0.272 <br /> 25.0 --- --- 0.061 0.156 <br /> 50.0 --- --- --- 0.109 <br /> 100.0 --- --- --- 0.074 <br /> 250.0 --- --- --- --- <br /> <br />r <br /> <br /> <br />F- 21 <br />