Publication in SIAM Review by Dr Gianmarco Mengaldo and team

Image: High-fidelity large-eddy simulations via spectral element methods

Congrats to Dr Gianmarco Mengaldo and team for their publication in SIAM Review (Volume 63, Issue 4), which has been featured on the cover as well.

Aerodynamic design is pervasive in our lives as we increasingly push the performance of our everyday transportation vehicles, being them cars, trains, or aircrafts. Despite the big progress of the field, high-fidelity aerodynamic simulations remain a key challenge, especially when complex industrial geometries are involved. To achieve the goal, we conceived key enhancements in spectral element methods (a set of numerical discretizations used to solve partial differential equations) and combined them with large-eddy simulation (a mathematical model for turbulent flows). We increased the accuracy and robustness of high-order mesh generation, improved numerical stability, enhanced computational performance, and demonstrated the method by building a high-fidelity aerodynamic simulation of a real car. Our methodology enables faithful simulations of unsteady turbulent flows around complex geometries in aircrafts and cars, such as landing gears and complex multi-wing systems, among others. The proposed method offers researchers and industry stakeholders a guide to transition towards next-generation computational tools for aerodynamics, that will lead to more efficient aerodynamic design of e.g., cars, and aircraft.

“The transition to high-fidelity aerodynamic simulations in industry is within grasp. We provide a methodological building block and guide towards this transition. I look forward to seeing more energy-efficient, comfortable and performant vehicles designed with high-resolution insights into their aerodynamics.” said Dr Gianmarco Mengaldo.

The article can be found at: https://doi.org/10.1137/20M1345359

Asst Prof Shin Sunmi named among Nanoscale 2023 Emerging Investigators

Assistant Professor Shin Sunmi has been named among the Nanoscale 2023 Emerging Investigators by the journal Nanoscale, highlighting rising stars of nanoscience and nanotechnology research. Her paper, Enhanced far-field coherent thermal emission using mid-infrared bilayer metasurfaces, was featured by the journal in a themed collection of research contributions highlighting “the very best work from researchers in the early stages of

[Business Times] Engineering Singapore’s green future

Countries have pledged zero emissions by 2050 but the means to get there are vague. Businesses need specific details on the decarbonisation of economies to align their own strategies, to raise and make investments, and to participate with impact. To read the full article by Professor Seeram Ramakrishna and Dalson Chung: Engineering Singapore’s green future

[Straits Times] Smart recycling boxes that reward residents for sorting waste have cut contamination rate

A trial in Bishan and Sin Ming to collect recyclables using smart boxes has managed to cut the contamination rate of their contents to just 5 per cent – far lower than the national average of 40 per cent. Professor Seeram Ramakrishna (NUS Mechanical Engineering), who chairs the Circular Economy Taskforce at the National University