# Browse Dept. of Chemical and Biomolecular Engineering by Issue Date

• (1989)
Two numerical methods for simulation of time-dependent free-surface Navier-Stokes flows are developed. Both techniques are based on semi-implicit time advancement of the momentum equations, integral formulation of the ...
PDF (7MB)
• (1989)
The electrokinetic properties of polystyrene latexes are investigated and data reduction indicates that surface charge regulation occurs through the adsorption of ions from the suspending medium. An independent non-electrokinetic ...
PDF (11MB)
• (1989)
An experimental study of the motion of 100 micron diameter glass and stainless steel spheres in a fully developed turbulent liquid pipe flow was conducted. Furthermore, the liquid, water, was directed vertically downward ...
PDF (11MB)
• (1989)
Infinite dilution activity coefficients ($\gamma\sp\infty$) were measured for 54 systems using an improved differential boiling point apparatus which exhibited better temperature stability allowing more precise and accurate ...
PDF (9MB)
• (1989)
Presented in this thesis is the effect of pressure on the vibrational spectra of a series of eleven crystalline paraffin hydrocarbons from n-C$\sb8$H$\sb{18}$ to n-C$\sb{36}$H$\sb{74}$ plus n-C$\sb8$D$\sb{18}$ and a few ...
PDF (2MB)
• (1989)
The trimethylgallium/silicon system is fundamentally and industrially important in microelectronics processing. In this study, the decomposition of trimethylgallium (TMG) on silicon (100) was investigated using thermal ...
PDF (10MB)
• (1989)
A direct numerical simulation of a fully developed turbulent channel flow with passive heat transfer is performed. The time-dependent three-dimensional Navier-Stokes equations and advection-diffusion equation are solved ...
PDF (9MB)
• (1989)
A new type of Scanning Tunneling Microscope (STM) was designed and constructed to study the surface morphology of small catalyst particles. This is the first application of the STM in the study of supported metal particles. ...
PDF (10MB)
• (1989)
A new vortex method for simulating two-dimensional buoyancy-driven flows is presented. This Lagrangian method utilizes a discrete representation of the known density field along with the vorticity transport equation and ...
PDF (8MB)
• (1989)
This thesis reports on the effects of imposed flow oscillations on the mass transfer coefficient and the mass transfer intensity in a turbulent flow.
PDF (4MB)
• (1989)
Streamwise and normal turbulent velocity measurements were taken at 80 normal locations across a two-inch high rectangular water channel. A two polarization, three beam He-Ne Laser-Doppler Velocimetry system was used. The ...
PDF (14MB)
• (1989)
Reflection absorption infrared spectroscopy is used to investigate ammonia, methylamine, dimethylamine and trimethylamine adsorption of Pt(111). The RAIR spectra show molecular adsorption in all cases with the subsequent ...
PDF (8MB)
• (1989)
We present several frontal algorithms for solving the large, sparse, linear equation systems arising in equation-based (EB) chemical process flowsheeting. The frontal approach is generally used as a banded matrix solver ...
PDF (6MB)
• (1989)
Model problems are analyzed to study the microscopic flow within porous media. In Part 1, the primary focus is on the flow near the surface of a porous body. The idealized system consists of two-dimensional media of infinite ...
PDF (3MB)
• (1989)
The development of thermodynamic models for liquid metal solutions is reviewed and applications of these models are discussed. In addition, directions where new or more work is needed are suggested.
PDF (10MB)
• (1989)
Much of the unusual behavior in supercritical fluids (SCF's), including enhanced solubilities, synergistic effects of mixed solutes, and entrainer effects, may be explained by a region around the solute that has a higher ...
PDF (8MB)
• (1990)
The formation of uniform silica particles by the alkoxide route has been investigated. Rates of chemical reactions involved in the precipitation are reported and linked to particle growth rates. Seeded growth experiments ...
PDF (5MB)
• (1990)
The adsorption and decomposition of ethylene on the Pt(210) crystal surface is examined using TPD and EELS. At 100 K, ethylene adsorbs molecularly to form a type 2 $\pi$-bound complex. Upon heating to 250 K, some of the ...
PDF (10MB)
• (1990)
Current thermodynamic solution models are generally incapable of cross predicting excess properties and usually have limited applicability. One reason for this may be due to the volumetric considerations which are ignored ...
PDF (5MB)
• (1990)
Several thermodynamic models for liquid organics have been developed and will be discussed in this thesis. In addition, recommendations are made for new areas to explore in order to further enhance our understanding of ...
PDF (10MB)