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As the range of applications of the QCM-D grows, structured samples are studied more and more often. The question of how these complicated objects affect the shifts of frequency and bandwidth is not easily answered. It requires a numerical simulation of the oscillatory flow field above the resonator surface. There is progress in this regard. At technique, which we call FreqD-LBM (for frequency domain lattice Boltzmann method) achieves this calculation. FreqD-LBM is available for download here. (Last Update: 2025-01-15)
Literature
- Gopalakrishna, S.; Langhoff, A.; Brenner, G.; Johannsmann, D.
"Soft Viscoelastic Particles in Contact with a Quartz Crystal Microbalance (QCM): A Frequency-Domain Lattice Boltzmann Simulation". Analytical Chemistry 2021, 93, (29), 10229–35.
https://doi.org/10.1021/acs.analchem.1c01612.
- Johannsmann, D.; Petri, J.; Leppin, C.; Langhoff, A.; Ibrahim, H.
"Particle fouling at hot reactor walls monitored In situ with a QCM-D and modeled with the frequency-domain lattice Boltzmann method". Results in Physics 2023, 45, 106219.
https://doi.org/10.1016/j.rinp.2023.106219.
- Johannsmann, D.; Leppin, C.; Langhoff, A.
"Stiffness of Contacts between Adsorbed Particles and the Surface of a QCM-D Inferred from the Adsorption Kinetics and a Frequency-Domain Lattice Boltzmann Simulation". Advanced Theory and Simulations 2023, 6, (11), 2300190.
https://doi.org/10.1002/adts.202300190.