Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 10 of 10 for “"entrance effects"”.
-
Entrance effects in a developing slug flow
Thesis (Sc. D.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1960.
-
Entrance effects on solution transport through nanoporous membranes
… concentration, or electrical potential. At the entrance and exit of a pore the fluid streamlines and electric field lines experience a significant constriction in going from the bulk reservoirs to the narrow pores. This effect can become significant for short pores and pores with low friction …
-
The Effects of Fluid Flow on The Pitting Corrosion of Pure Iron in Acidic Chloride Media
The fluid flow effects on electrobright pitting of pure iron were investigated. A rectangular channel with minimized wall and entrance effects was used. The electrolytic solution consisted of an aqueous solution of 0.5 M sulfuric acid and 0.003 M sodium chloride. The experiments were carried out …
-
Specifics of forced-convective heat transfer to supercritical CO2 flowing upward in vertical bare tubes
… empirical correlations without distinguishing entrance effects or deteriorated heat transfer regime. The methodology is based on binning experimental data according to the parameter X = (h_b - h_pc) / (q/G) and then combining correlations based on wall and bulk-fluid temperature on each bin to …
-
Improvements on performance of a heat pump water heater system
… 3D CFD simulation has been used to explore the entrance effects on the thermal tank. In the drop-in experiments, it is shown that R1234yf can be a desirable alternative for the baseline R134a without any special changes to the heat pump facility. By closing the valves at the inlet and outlet of …
-
Oscillatory Flow Mechanism for Enhanced Heat Transfer
… the present models and results incorporate full entrance effects and 3D interactions. Results of this study will be useful as a guide for the design and miniaturization of an oscillating device for enhanced heat transfer in further research projects.</p> <p>Simulations were performed to analyze …
-
Oscillatory Flow As A Means Of Enhanced Species Separation: A Three Dimensional Time-accurate Cfd Analysis
… the present models and results incorporate full entrance effects and 3D interactions. Results of this study will be useful as a guide for the design and miniaturization of an oscillating device for species separation in further research projects at the University of Central Florida. Observations …
-
Intensification of Gas Absorption in a Downward Flow Microbubble Bioreactor
… locations below the micro-jet array: 1) “entrance effects” due to Higbie (1935) type penetration mechanisms due to the creation of ‘new’ surfaces as bubbles are broken up and formed dominate at short distances, 2) turbulent convective mechanisms on the liquid side of the bubble interfaces …
-
Geometry mediated drag reduction using riblets and wrinkled surface textures
… in the total drag. To eliminate the role of entrance effects, we additionally investigate the effect of stream-wise aligned riblet structures on fully-developed Taylor-Couette flow. We perform both experimental studies as well as time-dependent numerical simulations in both the laminar …