Flocculation of model algae under shear.
We present results of molecular dynamics simulations of the flocculation of model algae particles under shear. We study the evolution of the cluster size distribution as well as the steady-state distribution as a function of shear rates and algae interaction parameters. Algal interactions are modeled through a DLVO-type potential, a combination of a HS colloid potential (Everaers) and a yukawa/colloid electrostatic potential. The effect of hydrodynamic interactions on aggregation is explored. Cluster strucuture is determined from the algae-algae radial distribution function as well as the structure factor. DLVO parameters including size, salt concentration, surface potential, initial volume fraction, etc. are varied to model different species of algae under a variety of environmental conditions.
- Research Organization:
- Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC04-94AL85000
- OSTI ID:
- 1030378
- Report Number(s):
- SAND2010-7911C; TRN: US201124%%163
- Resource Relation:
- Conference: Proposed for presentation at the 2010 AIChE Annual Meeting held August 10-12, 2010 in Salt Lake City, UT.
- Country of Publication:
- United States
- Language:
- English
Similar Records
Partitioning of Nanoparticles into Organic Phases and Model Cells
Size and structure of Chlorella zofingiensis /FeCl 3 flocs in a shear flow: Algae Floc Structure