Index Catalog // ScholarsArchive@OSU

An experimental study of ammonia-water bubble absorption in a constrained microscale film

Creator:: Jenks, Jeromy W.
Abstract:: An experimental study of absorption of ammonia into a constrained thin film of ammonia-water solution is presented. A large aspect ratio microchannel with one of its walls formed by a porous material is used to constrain the thickness of the liquid film. Experiments were performed at a pressure of 1,...
Resource Type:: Masters Thesis
Full Text:: THESIS OF Jeromy W. Jenks for the degree of Master of Science in Mechanical Engineering presented

Using discrete-event simulation to study the influence of log yard sorting on sawmill processing efficiency of small-diameter timber

Creator:: Pinon, Olivia J.
Abstract:: A sawmill is similar to other manufacturing enterprises when it comes to making decisions, scheduling production and meeting customer demands. In order to help sawmills achieve their goals, and because there is such a high degree of variability in the raw material used in this industry, computer simulation has proven...
Resource Type:: Masters Thesis
Full Text:: Small-Diameter Timber Abstract approved: / James W. Funck / Timothy C. Kennedy A sawmill is similar

Mechanical engineering design across cultures : a method of designing for cultures

Creator:: Van Bossuyt, Douglas L.
Abstract:: Mechanical design is often based on formal methodologies such as Quality Function Deployment. Techniques to quantitatively account for attractability, sensory perception, and affective design have been successfully incorporated into these methods and are receiving growing acceptance across many industries. Although the adoption of these methods marks a large improvement for...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Douglas L. Van Bossuyt for the

A study of cavitation instabilities in solids

Creator:: Puttapitukporn, Tumrong
Abstract:: Cavitation instabilities in elastic-plastic solids under spherically-symmetric and axisymmetric loadings were investigated using the finite element method. Both quasi-static and dynamic analyses were used to solve these problems. In the quasi-static analyses, we investigated a cavitation instability in elastic/perfectly-plastic, linear hardening elastic-plastic, power hardening elasticplastic, and constrained silver materials. Here,...
Resource Type:: Dissertation
Full Text:: like to thank my committee members and Graduate Council Representative, Professor Higdon, Robert L

Laminar natural convection within long vertical uniformly heated parallel-plate channels and circular tubes

Creator:: Vorayos, Nat
Abstract:: The problem of simple mathematical models of laminar natural convective flow within a long vertical parallel-plate channels and circular tubes kept at uniformly heated walls is revisited to seek a clear physical understanding of heat transfer mechanisms. A series solution method to analyze the fully developed flow and an integral...
Resource Type:: Dissertation
Full Text:: . The predicted average Nusselt number as a function of GrPrD/L not only agrees with the existing

A study of micro-scale, fractal-like branching flow networks for reduced pumping power and improved temperature uniformity

Creator:: Alharbi, Ali Y.
Abstract:: A first generation, one-dimensional predictive model is proposed for designing heat sinks with fractal flow networks. A three-dimensional computational fluid dynamics (CFD) model is analyzed as a means for validating the model and identifying areas for improvement. Two separate CFD models were developed. One was analyzed with conjugate heat transfer...
Resource Type:: Masters Thesis
Full Text:: sink Type of Heat Sink K H (mm) W (mm) dh (mm) L (mm) Nm Fractal-like 0 0.250 0.643 0.360 6.226

A numerical model of drop-on demand droplet formation from a vibrating nozzle and a rigid nozzle

Creator:: Yang, Guozhong
Abstract:: Droplet formation from a rigid and a vibration nozzle driven by a pulsing pressure is simulated. Droplet formation is simulated by using one-dimensional model. For the case of droplet formation from a vibration nozzle, the nozzle vibration is simulated by large deflection plate vibration equation. Droplet formation from a rigid...
Resource Type:: Masters Thesis
Full Text:: K: Liquid column principle radii L: Liquid column tip position P: Driving pressure magnitude Q

Solutions of plate equation for the prediction of ink droplets in inkjet cartridges

Creator:: Sangplung, Saangrut
Abstract:: Droplet formation in inkjet cartridges has been studied for several decades to improve print qualities. Currents and rigid nozzle plates are used inside the cartridge to fix the size of droplets exiting the chamber. This research is focused on studying the effect of nozzle flexibility on droplet formation. A flexible...
Resource Type:: Masters Thesis
Full Text:: (3.35) Substituting equation (3.34) into (3.36) D l(a2Øa2w a2 a2w a2Øa2w P--V w+i --+2 -+-- i

Spatio – temporal temperature variations during droplet impingement evaporation : effects of nanofluid and nano-structured surface

Creator:: Graber, Christof
Abstract:: Droplet and spray impingement cooling are typically used in high heat flux thermal management. In this thesis, droplet impingement and evaporation heat transfer characteristics are determined from measured spatially- and temporally- varying fluid and surface temperatures. Unique to this study is the documentation of the effects of using a nanofluid...
Resource Type:: Masters Thesis
Full Text:: value corresponding to characteristic time III IV value corresponding to characteristic time IV Au

Mixed reactant single chamber fuel cell, using products generated from the electrolysis of an aqueous electrolyte

Creator:: Jost, William C.
Abstract:: A Mixed Reactant Single Chamber (MRSC) Fuel Cell is a relatively recent concept in the field of fuel cell engineering originally developed in the late 1950’s. Typical fuel cells have separated reactants (a separated fuel and oxidizer) that react on their usually non-selective electro-catalytic materials. A mixed reactant fuel cell...
Resource Type:: Masters Thesis
Full Text:: flow rate oxygen I current idealP ideal power density (l) liquid

ScholarsArchive@OSU

An experimental study of ammonia-water bubble absorption in a constrained microscale film

Using discrete-event simulation to study the influence of log yard sorting on sawmill processing efficiency of small-diameter timber

Mechanical engineering design across cultures : a method of designing for cultures

A study of cavitation instabilities in solids

Laminar natural convection within long vertical uniformly heated parallel-plate channels and circular tubes

A study of micro-scale, fractal-like branching flow networks for reduced pumping power and improved temperature uniformity

A numerical model of drop-on demand droplet formation from a vibrating nozzle and a rigid nozzle

Solutions of plate equation for the prediction of ink droplets in inkjet cartridges

Spatio – temporal temperature variations during droplet impingement evaporation : effects of nanofluid and nano-structured surface

Mixed reactant single chamber fuel cell, using products generated from the electrolysis of an aqueous electrolyte

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