This Supplement contains papers presented at the Turbulence Workshop - International Symposium held at the University of Belgrade, Faculty of Mechanical Engineering from August 31-September 2, 2015. The participants were researchers from fourteen universities and four institutes from Germany, Japan, Montenegro, Serbia, Spain, Sweden and USA. Two Serbian schools of turbulence at the University of Belgrade played an important role in leading this event: The School of the Turbulent Swirling Flow at the Faculty of Mechanical Engineering and The Laboratory for Thermal Engineering and Energy at the Vinča Institute of Nuclear Sciences. Turbulence, one of the most difficult and unsolved problems that remains in classical physics, still attracts the attention of numerous engineers and researchers... around the world because of its relevance in practical applications. These include, for instance, energy facilities, aerodynamics, propulsion, weather and climate change and bio-engineering sciences. Among the many objectives of this event was to promote interactions between early career scientists and established experts in the field of turbulence research.