Multi-physics investigation of spray in a crossflow

Understanding the dynamics of particles (solid and liquid) in a crossflow is essential for many scientific investigations and engineering applications. Transverse injection of gaseous/liquid jets and sprays with respect to an incoming flow is a well-known concept known as Jet-in-crossflow (JICF) and Spray-in-crossflow (SICF). The resultant flow field comprises strong vortical structures that enhance the entrainment and mixing of the two fluid streams. Hence, these configurations are utilized in sustainable and clean technologies for power and propulsion and are a popular area of research for developing new concepts. For instance, the LEan Azimuthal Flame (LEAF) combustor concept recently utilized the SICF configuration, which showed ultra-low-NOx and soot-free exhaust emissions for dual-fuel operations (Jet fuel and hydrogen). Furthermore, integrating hydrodynamics with various multi-physics strategies, such as using electromagnetic and electrostatic fields, is gaining much interest in improving the overall performance by controlling the fuel trajectory and distribution. 

 The current Ph.D. position focuses on the experimental investigation of spray dynamics in a crossflow. The project aims to foster a new understanding of the spatiotemporal scales and the controlling parameters of sprays when subjected to reaction fronts, turbulent streams, and electrostatic fields. The project offers hands-on experience in setting up multi-physics experiments and using several state-of-the-art optical diagnostics, such as high-speed shadowgraphy, Particle Image Velocimetry (PIV), Planar-Induced Fluorescence (PLIF), Phase Doppler Interferometry (PDI). 

The ideal candidate will be interested in fluid dynamics, reacting flows, and laser diagnostics and have programming experience in at least one language (e.g., Python, MATLAB, etc.). The selection process considers the comprehensive strength of the entire application, including the academic qualifications, personal statement, CV, and references. Ideally, candidates should have a strong background in fluid dynamics and the development of experimental methodologies.

 The project includes close collaboration with Imperial College London and ETH Zurich, Switzerland, and the possibility of visiting these institutions during the PhD research. This collaborative environment will offer the opportunity to learn from and contribute to a diverse team of experts. 

 The intended PhD start date is in late Summer or early Autumn 2024. If a suitable candidate is found, this position may close earlier than the closing date. 

 Informal inquiries may be addressed to Dr. Khushboo Pandey at kpandey@ed.ac.uk.

To Apply: https://www.eng.ed.ac.uk/studying/postgraduate/research/phd/multi-physics-investigation-spray-crossflow