اروين انواري

Nowadays, with the advancements in engineering science and technology, the identification and tracking of submarines has become more challenging than ever. Various acoustic and non-acoustic methods have been used to detect the movement of submarines operationally since the past. The focus of this study is on one of the possible non-acoustic methods for identifying moving objects submerged in ocean waters, that is, investigating thermal patterns and fluctuations created in other fluid properties, including momentum changes. This inevitably leads to the study of internal waves in stratified waters, which itself can be used to define the design criteria of offshore facilities such as drilling rigs or marine pipelines in terms of the incoming forces to provide resistance and stability. One of the remote sensing tools in this field is numerical modeling. With direct numerical simulation, it is possible to check how and when the patterns of changes in the physical properties of water occur and calculate them quantitatively and qualitatively. The study of stratification and changes in water characteristics with respect to depth can be the turning point of this study and also the subject of future studies. In short, in this study, a direct numerical method has been used to eva‎luate the relationships between the speed and depth of the float, the depth of the water layer, and the temperature gradient. The study method is mainly limited to the modeling of the wake wave near the submerged body to obtain the dynamic response and temperature change graph.

جسم مغروق , غير صوتي , حل عددي , آب‌هاي لايه‌بندي شده

Submerged Body , Non-Acoustic , Numerical Simulation , Stratified Waters

Arvin Anvary

Dr. M.SiadatMousavi