CTC (Circulating Tumor Cell) is a small cancer within blood. By capturing CTCs, it is possible to detect cancer and determine whether cancer treatment is effective earlier than with conventional testing methods. We studied to identify microchip geometries that facilitate contact between the CTC and the wall surface. We have performed CFD using OpenFOAM, considering the interaction between rigid spherical particles and fluid flowing in imitation of a microchip. As a result, we have succeeded in representing rigid spherical particles flowing in a fluid by using a CFD solver called DPMFoam.
