The aim of this work is to present a simplified mathematical model of a fully 3D gravity current. The mathematical model is obtained applying integral mass and momentum balances to a suitable control volume representing the gravity current with a simplified geometrical form. Results obtained by solving the mathematical model are compared with the results of a 3D lock exchange release experiment, conducted in a tank with both smooth and rough bottom. Measurements have been made by means of image analysis. A good agreement has been found between experimental and numerical results. In particular, roughness and entrainment effects have been highlighted.
LA ROCCA, M., Adduce, C., Sciortino, G., BATEMAN PINZON, A. (2008). A simplified integral model for the dynamics of a 3D gravity current. In River Flow 2008 (pp.1215-1222). London : Taylor & Francis Group.