In this study, besides examining the conditions in the coastal region of Bandar Abbas, the feasibility of using Archimedes torsional turbines to produce renewable energy in this region was studied via field measurement and numerical simulation. Through field study and environmental conditions, depth, and amount of vessel traffic were measured. Then,the safe depth was calculated. Through field measurement of the current pattern, effective parameters such as salinity, electrical conductivity, and density were measured and in order to develop the results using numerical simulation with ROMS numerical model, the hydrodynamic pattern of the current for the desired area was formed. After reviewing the results through SOLVER program and linear programming method and creating effective constraints in field monitoring, The optimal energy efficiency of Archimedes torsional was turbines investigated for different incline relative to beneath and angular velocities. The results of the research and simulation demonstrated that changing the tilt of the vertical axis of the turbine between the angles of 5 degrees and 15 degrees would lead to a change in the efficiency of the Archimedes turbine. The optimal efficiency value, 75%, was at an angle of 15 degrees, and a turbine rotation speed of 150 rpm is the highest efficiency. This is an acceptable result considering the low slope of the studied area.