Thesis Work – Experimental and Numerical Investigation of Sub-Cooled Droplets Injected into a Steam Environment

Are you a student looking to apply your knowledge to real-world solutions that support the energy transition? With us, you will have the opportunity to complete your thesis project close to the business, working alongside experienced specialists and tackling challenges where your ideas and perspectives can make a real difference.

About the Thesis Work The Fluid Dynamics Team within Energy Transfer & Environment (YRLE) at Vattenfall Research & Development is a multidisciplinary group working with fluid flow challenges across Vattenfall’s operations, from hydropower and offshore wind to nuclear energy. Subject / Assignment Heat transfer in multiphase flows is a complex phenomenon involving interactions between liquids, gases, and solids.

A key application is spray cooling of steam in pressurized water reactors (PWRs), where droplets interact with hot steam and surrounding surfaces. As part of the AdTherM Competence Centre and its research on multiphase flows, you will: Perform CFD simulations in OpenFOAM using different flow, turbulence, spray, droplet, and thermodynamic models.

Evaluate simulation results against experiments conducted at Vattenfall’s laboratory in Älvkarleby. Invest