Thermal Fluids
Thermal fluids is a multidisciplinary research area focusing on the behavior, interaction, and transport of heat, energy, and fluids. It encompasses topics like thermodynamics, fluid dynamics, and heat transfer, addressing challenges in energy systems, aerospace, manufacturing, and environmental engineering.
Applications include cooling technolo-gies, combustion, renewable energy, and optimizing thermal-fluid systems.
Heat exchangers
Heat exchangers are broadly defined as devices that transfer thermal energy from one fluid stream to another without direct mixing. There are several ways to accomplish this transfer, and the final heat exchanger selection will be based on several criteria, including performance, cost, and overall size and footprint. Therefore, in many priactical applica-tions, the heat exchanger design becomes critical to achieving higher thermal efficiency and durability. In our devision, we conduct advanced research in exploring the basic ther-mal and fluid characteristics in heat exchangers to optimize their performance. High-fi-delity numerical simulations as well as detailed validation are used to achieve compre-hensive understanding thus help industries to develop their products.
The increasing demand for energy-efficient technologies, primarily driven by the global energy crisis and growing enviormental concerns, has necessitated innovative solutions to reduce emissions across the world.
Microchannels-viscoelastic fluids
The Microchannels-Viscoelastic Fluids research is essential to advance our understand-ing of complex fluid behaviors within microscale environments. Our primary focus lies in conducting high-fidelity numerical simulations of serpentine microchannel geometries to explore the intricate phenomena driven by the viscoelastic properties of polymers. At these scales, unique flow behaviors emerge, such as elastic turbulence, which is crucial for enhancing mixing or heat transfer efficiency and control in various microfluidic appli-cations. These insights hold significant potential for practical uses, including medical di-agnostics, cooling of electronic components, and polymer processing.
We have strong expertise in understanding fluid flow, heat transfer, and mixing perfor-mance at small scales. By integrating advanced simulations including Direct Numerical Simulations (DNS) with fundamental principles of fluid dynamics, we aim to provide val-uable insights that enhance the design and performance of microfluidic systems. Our work supports the development of more efficient and innovative solutions in diverse in-dustries.
Advanced cooling techniques
Advanced cooling techniques are essential for controlling heat transfer in high-perfor-mance systems like jet engines, gas turbines, and cutting-edge electronics. Our expertise lies in high-fidelity simulations, including Direct Numerical Simulation (DNS) and Large Eddy Simulation (LES) of such engineering environments. This numerical approach deep-ens our fundamental understanding of the intricate physics behind common cooling methods like film and impingement cooling, typical of turbine blades, as well as micro-channel heat exchangers. We also investigate the impact of advanced 3D-printed manu-facturing techniques, where inherent surface roughness can dramatically influence flow behaviour and heat transfer efficiency.
In addition, we are dedicated to developing reliable, cost-effective Reynolds-Averaged Navier-Stokes (RANS) models that bring physics-based solutions to our industry partners. Our valuable insights help to bridge the gap between research and industrial needs, sup-porting the design of innovative cooling technologies that meet the demands of modern turbines. As the field evolves, we are also exploring more advanced techniques like ther-moacoustic cooling with infrasound, paving the way for next-generation heat manage-ment solutions.
Contact
Christer Fureby
christer [dot] fureby [at] energy [dot] lth [dot] se (christer[dot]fureby[at]energy[dot]lth[dot]se)
+46 46 222 48 13