CFD simulations of LTCC based microsystems

This paper presents influence of fluidic inlet and outlet spacing on light transmission inside channel. To consider this issue three various LTCC (Low Temperature Co-fired Ceramics) based fluidic microsystems for light transmittance/absorbance measurements were designed and manufactured. The main distinction between these micro-devices was a way of fluidic inlet and outlet connection to the optical channel. Significant differences of output signal for each structure were noticed. To explain this phenomenon a CFD (Computational Fluid Dynamics) simulations were done.