

@mastersthesis {6789,
	title = {Investigating basic characteristics of turbulence in channel flows using {Lagrangian} concepts},
	year = {2012},
	note = {3547606},
	school = {The University of Oklahoma},
	type = {phdPh.{D}.},
	address = {Ann Arbor},
	abstract = {{Many examples of turbulent motion of particles in nature can be better perceived through the concept of backwards turbulent dispersion. Some examples include pollutants in atmosphere or oceans reaching populated human or marine life, mixing scenarios where components are moving towards the mixing location, or temperature noise at a certain downwind location. In these scenarios, turbulent dispersion occurs as the particles diffuse towards a particular location. The combined direct numerical simulation/Lagrangian scalar tracking (DNS/LST) approach is used to obtain Lagrangian statistics of turbulent scalar field. This provides a natural and convenient framework to compute statistics for turbulent backwards scalar dispersion. Using this method, the forwards and backwards single particle and relative dispersion statistics are calculated. The rates of dispersion and the principal direction of transport of heat are studied. Four main regions of the channel, namely, viscous sub-layer, transition region, logarithmic region and center of the channel, are studied with interest. The dispersion characteristics are also analyzed for different types of fluids, including but not limited to},
	keywords = {0542:Chemical engineering, Applied sciences, Boundary layers, Channel flows, Chemical engineering, Dispersion, Turbulence},
	url = {http://search.proquest.com/docview/1268739729?accountid=14270},
	author = {Srinivasan, Chiranth}
}
