Turbulence modulation in particle-laden flows: The derivation and validation of a dissipation transport equation
by Schwarzkopf, John D., Ph.D., WASHINGTON STATE UNIVERSITY, 2008, 144 pages; 3381811

Abstract:

In this research, a volume averaged dissipation transport equation is developed for particle laden turbulent flows. The derivation process identifies an additional production of dissipation term that is due to the presence of particles and three new coefficients. The coefficient for the production of dissipation due to the presence of particles was found from experimental data involving homogeneous turbulence generation by particles. The coefficient for the dissipation of dissipation was found to contain an additional term due to the presence of particles within a homogeneous turbulent decay. The coefficient associated with the production by mean velocity gradients was found analytically, but the data needed to determine this coefficient was lacking the necessary parameters. A numerical model was developed and compared to the experimental data of particle laden turbulent channel flow. The first stage of the model shows promise and agrees reasonably well with the experimental data.

 
AdviserPrashanta Dutta
SchoolWASHINGTON STATE UNIVERSITY
SourceDAI/B 70-11, p. , Dec 2009
Source TypeDissertation
SubjectsChemical engineering; Mechanical engineering; Environmental engineering
Publication Number3381811
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