The Chair of Building Physics of ETHZ studies the multiple physical aspects of building materials and urban microclimate. Wetting by wind-driven rain, i.e. rain droplets impinging on the building façade, is a main agent of deterioration of building materials. In collaboration with Fluids and Porous Materials group of the Laboratory of Multiscale Studies for Building Physics at Empa, we are offering a:
PhD position : Advancing the knowledge of water droplet behavior and film forming on porous materials (100%)
We are looking for a highly skilled and motivated candidate to study droplet impact and wetting of porous materials, including (1) dynamic spreading, splashing or bouncing of droplet depending on impact speed, angle and surface characteristics such as roughness and porosity, (2) pinning, coalescence and film forming of the remaining droplets, (3) water adsorption in porous substrates, (4) evaporation and drying. The project will focus on the development of a physical knowledge of droplets behavior on porous materials, combining advanced high resolution experimental techniques (high speed camera imaging, neutron imaging, fast X-ray nanotomography) and advanced numerical modeling of droplets and water films on porous substrates such as sintered bead-glass, natural stones and wood.
The candidate should be a communicative scientist with a strong background in heat and mass transport and/or physical sciences. He/she has experience in programming and modeling of physical phenomena. Experience with image processing would be beneficial. The candidate should have a master degree in Mechanical, Civil or, Material Engineering, Physics or equivalent, a strong knowledge of heat and mass transport processes in porous materials and a profound experience with numerical modeling. The candidate should be proficient in English.