We have a centrifugal pump (1) of diameter Dm= 332 and speed of rotation 1800 rpm which has a characteristic curve
given by h (m)= 60-0.01015625*Q² with Q (liters/s). It is desired to construct another dynamically similar pump (2) that
half the initial rotational speed and its flow rate is 341 L/s at its optimum operating point
and the geometrical head to operate is 131 mts . And its efficiency curve is of the form DQ+EQ2 with Q ( D= 0.05194805 E= -0.0007491)
(liters/s)