Dissipative-particle-dynamics model of biofilm growth

Journal Article · Mon Jun 13 00:00:00 EDT 2011 · Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics, 83(6):Article No. 066702

DOI:https://doi.org/10.1103/PhysRevE.83.066702· OSTI ID:1017114

Xu, Zhijie; Meakin, Paul; Tartakovsky, Alexandre M; Scheibe, Timothy D

A dissipative particle dynamics (DPD) model for the quantitative simulation of biofilm growth controlled by substrate (nutrient) consumption, advective and diffusive substrate transport, and hydrodynamic interactions with fluid flow (including fragmentation and reattachment) is described. The model was used to simulate biomass growth, decay, and spreading. It predicts how the biofilm morphology depends on flow conditions, biofilm growth kinetics, the rheomechanical properties of the biofilm and adhesion to solid surfaces. The morphology of the model biofilm depends strongly on its rigidity and the magnitude of the body force that drives the fluid over the biofilm.

• Research Organization: Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-76RL01830
• OSTI ID: 1017114
• Report Number(s): PNNL-SA-75521; KP1702030; TRN: US201112%%538
• Journal Information: Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics, 83(6):Article No. 066702, Vol. 83, Issue 6
• Country of Publication: United States
• Language: English

Related Subjects

09 BIOMASS FUELS
ADHESION
BIOMASS
DECAY
FLUID FLOW
FRAGMENTATION
HYDRODYNAMICS
KINETICS
MORPHOLOGY
SIMULATION
SUBSTRATES
TRANSPORT
biofilm
DPD
reaction