APPLICATION OF COMPUTATIONAL FLUID-DYNAMICS TECHNIQUE TO STORAGE RESERVOIR STUDIES

The now dynamics in Grimsbury reservoir is studied using Computational Fluid Dynamics (CFD). Under no wind condition, flows circulate in the horizontal plane. These circulations, in general, lead to short circu iting and zones of stagnation. Modifications to the inlet and the outl et are investigated to maximise the residence time. They include the m anifold inlet arrangement, the submerged baffle inlet and the central outlet arrangement. The results of the residence time simulation indic ate that the manifold inlet option gives the best 'plug-flow' efficien cy, next the submerged baffle option and finally the central outlet op tion. The submerged baffle inlet option, however, is considered to be the preferred option because of its low installation cost and because of the reasonable balance between the degree of mixing and the residen ce time. (C) 1998 IAWQ. Published by Elsevier Science Ltd.