Iranian Society of Heating, Refrigerating, and Air Conditioning Engineers (IRSHRAE) Journal of Renewable and New Energy 2423-4931 12 1 2025 03 21 Energy harvesting from vortex induced vibration for circular horizontal cylinder system with gap Energy harvesting from vortex induced vibration for circular horizontal cylinder system with gap 37 46 208670 10.22034/jrenew.2025.208670 FA Abbas Rahimly PhD student, Department of Mech. Eng. , West Tehran Branch, Islamic Azad University, Tehran, Iran Ali Asghar Jafari 2-Professor, Department of Mech. Eng., West Tehran Branch, Islamic Azad University, Tehran, Iran Also Faculty Member of Department of Mech. Eng., K.N. Toosi University of Technology, Tehran, Iran Cyrus Aghanajafi Professor, Department of Mech. Eng., K.N. Toosi University of Technology, Tehran, Iran Journal Article 2023 04 29 Global energy demand will increase by 1.8% annually between 2000 and 2030. Carbon dioxide gas increases by 1.2% per year. Lack of energy and air pollution are two big problems of humanity. The use of renewable energy sources with the least environmental pollution is very important. Attention to the low pollution effect of harvesting energy from the wind has led most researchers to research this type of energy. Wind energy is one of the renewable energy sources, the new generation of bladeless wind turbines is based on a flexible structure. This article is an overview of 67 fundamental researches in this new field that are being investigated by researchers, which are based on validity and practical testing. The FSI calculations made in the articles have been filtered, the studies made are mainly to optimize the use of renewable energy of the bladeless turbine and check one or two parameters. The simulated wind turbine model is without blades, almost all parameters effective in energy harvesting in these turbines have been investigated, and an adjustment system has been used to increase the productivity hours of the wind turbine per year. Global energy demand will increase by 1.8% annually between 2000 and 2030. Carbon dioxide gas increases by 1.2% per year. Lack of energy and air pollution are two big problems of humanity. The use of renewable energy sources with the least environmental pollution is very important. Attention to the low pollution effect of harvesting energy from the wind has led most researchers to research this type of energy. Wind energy is one of the renewable energy sources, the new generation of bladeless wind turbines is based on a flexible structure. This article is an overview of 67 fundamental researches in this new field that are being investigated by researchers, which are based on validity and practical testing. The FSI calculations made in the articles have been filtered, the studies made are mainly to optimize the use of renewable energy of the bladeless turbine and check one or two parameters. The simulated wind turbine model is without blades, almost all parameters effective in energy harvesting in these turbines have been investigated, and an adjustment system has been used to increase the productivity hours of the wind turbine per year. https://www.jrenew.ir/article_208670_cdb40b5f6ec30586a9e3c9fd5ec9f0e3.pdf