We evaluate the mass transfer rate from the surface of rod- and disc-
shaped particles with various aspect ratios and surface areas. The
method of particle fabrication used here builds off of both traditional
gypsum plaster dissolution methods and advances in sugar-glass particle
recipes. The particles were created in-house with a nearly neutrally
buoyant formula and custom molds. They were then tested in homogeneous,
isotropic turbulence. The decrease in particle weight was recorded and
results were compared to the Hixson-Crowell model for dissolution. We
hypothesized that the turbulent flow would affect the boundary layer
surrounding these particles and therefor their mass transfer rate.
Results from these experiments show the dependence of shape and surface
area to mass transfer rate in turbulent flow. The related questions are
relevant to cases of marine biology, carbon sequestration, and pollution
by microplastics.