TURBULENCE MODULATION UNDER LARGE-PARTICLE LOADING: EFFECTS OF SHAPE AND DENSITY

Open Access
Author:
Cronin, Aidan Stephen
Area of Honors:
Mechanical Engineering
Degree:
Bachelor of Science
Document Type:
Thesis
Thesis Supervisors:
  • Dr. Margaret L. Byron, Thesis Supervisor
  • Dr. Hosam K. Fathy, Honors Advisor
Keywords:
  • turbulence
  • Mechanical Engineering
  • design
  • fluid mechanics
Abstract:
Particle-laden turbulence is important to a diverse range of topics: from aerosol transport in the atmosphere to flocculation techniques treating our drinking water. Often the particles in flows of interest are large and non-spherical, making them difficult to study, and so simplified cases are considered to quantify turbulent behaviors. Experimental laboratory research has provided insight into the quantifiable behavior of these simplified particle-laden flows, notably in cases of homogeneous and isotropic (H.I) turbulence. For this research, we designed and constructed a novel laboratory turbulence tank for the study of particle-laden flows that could create a region of H.I turbulence at its center. To do so, we incorporated random, symmetric forcing on a completely new geometry (a modified icosahedron) intending to maintain the properties of H.I. turbulence while increasing the size of the region of the tank in which it is contained. This facility will provide a unique testbed for studies of particle-laden turbulence.