The study area The model and its setup
One of the renewable Caspase-3/7 Inhibitor resources is ocean currents from which; with suitable devices, one can extract energy. A schematic diagram of mechanical energy sources for the ocean circulation is shown in Fig. 1. Wind stress and tidal force are the most important sources of mechanical energy that drive the oceanic general circulation, because the horizontal flows in oceans are much stronger than the vertical flow  and . The role of other factors such as pure geostrophic currents, internal waves, and so on, can be neglected, especially in large-scale circulation studies. The effect of each factor can be seen in Fig. 2.
Fig. 1. Mechanical energy diagram for the ocean circulation .Figure optionsDownload full-size imageDownload as PowerPoint slide
Fig. 2. Mechanical energy balance for the world's ocean (in TW) .Figure optionsDownload full-size imageDownload as PowerPoint slide
In this diagram, one can see that about 3.5 TW (Terawatt) of ocean current kinetic energy is provided by tide and 3.1 TW by Ekman transport (wind). These values are calculated, based on the annual mean of field measurements and theoretical aspects related to each phenomenon. Therefore, as shown in Fig. 2, the main factors for ocean energy are tidal and wind driven currents and waves. This research focuses on the role of ocean currents.