A computer technique is applied to predict flow velocities in a reservoir. Navier-Stokes equations with Boussinesq approximation are solved with a finite-difference scheme based on Patanker method. The predictions of flow velocities calculated from temperature distribution data as stationally flow approximation, and the result is compared with the velocities which was obtained with the temperature in advance by the simulatiom as a nonstationally flow approximation. The agreement is satisfactory. It should be theoretical evidence that the computation technique is a effective way to get easily the information of flow velocity distribution of reservoir for the appropriate operation to keep the water quality.
Both sulfonic acid and carboxyl groups were introduced onto the pulp ball by radiation-induced graft polymerization. The resultant grafted material sorbed ammonia gas due to neutralization. Concentration decay of ammonia gas was determined in a closed vessel, and apparent sorption capacity of gas was calculated as integration of repeated deodration. Superioriy of the grafted deodorant was demonstrated in comparison with three commercial products and an activated carbon.