Chemical Engineering Seminar Series : Prof. Martin Bruschewski

Magnetic Resonance Velocimetry: Purpose and Applications in Fluids Engineering

Magnetic Resonance Velocimetry (MRV), a non-optical measurement technique, has evolved significantly since its introduction to fluid mechanics in the early 2000s. Its key strength lies in capturing three-dimensional, three-component (3D3C) velocity fields across entire flow domains with high accuracy and cost efficiency, especially when combined with additive manufacturing. Recent advancements include methods for measuring the full three-dimensional, six-component (3D6C) Reynolds stress tensor and 3D mapping of species concentrations and intrinsic velocities in complex flows, such as gas-liquid and granular systems. Additionally, temperature-sensitive and contrast-agent-based MRV techniques enable detailed scalar measurements. Ongoing developments aim to extend MRV’s capabilities to turbulence spectrum analysis, providing critical reference data for fluid-structure interaction studies. MRV has become a cornerstone in benchmark experiments, delivering comprehensive 3D flow data essential for validating computational fluid dynamics (CFD) models. Its gapless, time-averaged datasets offer robust benchmarks for Reynolds-Averaged Navier-Stokes (RANS) models and reliable references for time-averaged results in scale-resolving simulations. This talk will showcase recent MRV advancements, best practices for designing MRV-compatible experiments, and strategies for effectively comparing MRV data with CFD results.