Mehdi Nezhad Naderi - Department of Civil Engineering, Tonekabon Branch, Islamic Azad University, Tonekabon, Iran
Omid Zolfaghari - Department of Civil Engineering, Tonekabon Branch, Islamic Azad University, Tonekabon, Iran

A bubble curtain is a system that produces bubbles in a deliberate arrangement inwater. The technique is based on bubbles of air (gas) being let out under thewater surface, commonly on the bottom. When the bubbles rise they act as abarrier, a curtain for prevention of the spreading of particles and othercontaminants. In this paper is paid to applications of bubble curtain in protectionof environment of offshore. Due to the salt water intrusion in Panama navigablechannel is causing environmental damage. Construction of bubble curtains alongthe channel can be studied as a playbook. In this study, two-phase flow issimulated with simulation software Fluent6.3 for freshwater input from the left,saltwater input from the right, air from several vertical bubbles and water injection.The model is solved by using of two-phase Mixture pattern. For problem solving isused the k- turbulence model. The air inlet velocity is considered 0.6 meters persecond and again 0.2 meters per second. By using air curtains (bubbles) can beprevented salt water intrusion and the density also be reduced. In this paper themultiphase flow is simulated by computational fluid dynamics method in Panamachannel.

Bubble curtain, Computational fluid dynamic method, Fluent, Multiphase flow, Prevention of Saltwater intrusion