Can a Difference in Molecular Weights Cause an Eruption in a Driven Flow of Self-Organizing Immiscible System?
Abstract
Driven flow of a non-equilibrium non-conservative (NENC) system with a mixture of immiscible particles [A, B of molecular weight M(A), M(B)) exhibits self-organizing patterns (segregation, phase-separation, etc.) in steady-state. The flow response (v) of mass flux density (j) to bias (H), v = (partial derivative)j/(partial derivative)H in steady-state is found to be sensitive to molecular weight ratio (alpha = M(B)/(M(A)). While the flux density (j) responds lineally to bias for both components (A, B) at alpha = 1, onset of eruptive response occurs at extreme bias (H - 1) at a > 1 where v -> (infinity) for heavier (B) and v -> (infinity) for lighter (A) constituents. Difference in molecular weights (M(A), M(B)) is not only critical to eruptive flow but also in controlling the flow response prior to this crossover.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 2008
- Accession Number
- ADA498461
Entities
People
- Joseph Gettrust
- Ras Pandey
Organizations
- United States Naval Research Laboratory