We built a 2D numerical model of the yz-section-plane (Fig. )) of the chip and evaluated it in COMSOL Multiphysics (version 5.4) to analyze the device's frequency response. At resonance frequencies, we investigated the wall displacement as well as the Gor'kov potential and streaming velocity. First, a mesh study was conducted to determine the converged mesh parameters (ESI Fig. ). After the initial frequency-domain study of the Thermoviscous Acoustics and Solid Mechanics interface, a stationary study of the Creeping Flow interface at the resonance frequency was carried out using the solutions of the initial study as inputs. With this study, we were able to derive the streaming velocity. A detailed description of the numerical model is provided in the supplementary material.