A 3D CFD Simulation and Analysis of Flow-induced Forces on Quartz Crystal Microbalance Sensor in Solution with Different Temperatures

摘要

Quartz crystal microbalance (QCM) is a very powerful method that can measure a mass variation per unit area by measuring the change in frequency of a quartz crystal sensor. The hybrid temperature effect on a QCM sensor in solution leads to unconvincing detection results. A 3D Computational fluid dynamics (CFD) simulation and analysis was conducted to display the 3D nature of the geometric model of the QCM sensor in NaCl solution with different temperatures. We found the relationships among the resultant forces (Fy), the compensatory frequency calculated by the improved Sauerbrey equation and the temperature of NaCl solution. The results show the hybrid temperature effect has an influence on the flow-induced forces, which cause the vibration frequency drift of QCM sensor. This plays a significant reference role in enhancing the accuracy and stability of the QCM measurements when the QCM sensor used in solution.