**CLOSED** The MODELAIR consortium are currently looking to hire 12 PhD candidates. If you are interested in fluid mechanics, air quality, artificial intelligence and data-driven modeling, among the positions offered in this multi-disciplinary and inter-sectoral PhD program, there is room for those who would like to combine theory with: studying major cities in Europe to reduce pollution, performing computational fluid dynamics numerical simulations and experiments and using data analysis and machine learning tools to build predictive models.