Index Catalog // ScholarsArchive@OSU

Experimental study of subcooled water spray cooling using flow symmetric micro-structured surfaces

Creator:: Tulchinsky, Alex M.
Abstract:: Spray impingement cooling has been shown to be a leading candidate for future high heat flux cooling applications. In general, spray cooling curves consist of three heat flux regimes; single-phase, two-phase and critical heat flux (CHF). CHF is considered the design limit for almost all two-phase cooling applications, as a...
Resource Type:: Masters Thesis
Full Text:: of vaporization k thermal conductivity L length m mass flow rate N droplet number

Geometric Chatter Stability Index for Milling and Modeling of Chip Pulling Effect

Creator:: Maulimov, Mukhtar
Abstract:: Prediction and mitigation of chatter vibrations in machining operations and optimizing overall machining mechanics are crucial for achieving greater productivity and manufacturing efficiency. This thesis first explores effect of directional relationships on chatter stability in milling process. Based on the directional relationships, a geometry-based chatter stability index (CSI) is proposed...
Resource Type:: Masters Thesis
Full Text:: cutting force vector can be defined as 2 21 r a z u r a v K n K e f K K      (2.33

Modelling Thin Liquid Film Draining of Bubbles on Porous Media in Confined Geometry

Creator:: Bahm, Jared S.
Abstract:: The behavior of the thin liquid ﬁlm formed between a bubble and hydrophobic membrane is of high interest in applications where separating two-phase mixtures is beneﬁcial. One such application is in-situ vapor extraction heat sinks. In these systems, high heat transfer rates are accomplished by taking advantage of the high...
Resource Type:: Masters Thesis
Full Text:: when the z-axis is taken positive in the downward direction. . . . . . . . . . . . . . . . . . . 69

Optimal control of an underactuated bipedal robot

Creator:: Jones, Mikhail S.
Abstract:: Bipedal robots represent a unique class of control problems that combine many of the most difficult elements of nonlinear control. These robots are typically designed to be mobile and as such have limited energy and actuator authority making efficiency a prime concern. Unlike wheeled robots, legged robots must transition between...
Resource Type:: Masters Thesis
Full Text:: Description Value mc Cart Mass 1.0 [kg] bc Cart Friction 0.5 [N s/m] Ip1, Ip2 Pendula Inertia 0.01 [kgm 2

Single Phase and Flow Boiling Heat Transfer and Flow Characterization in Microscale Pin Fin Heat Sinks

Creator:: Rasouli, Erfan
Abstract:: The ever increasing requirements for heat dissipation in various thermal management applications such as computer chip cooling and high power electronics have necessitated the need for novel thermal management techniques. Thermal management using heat sinks with microscale features is amongst the prominent techniques developed over the past two decades. In...
Resource Type:: Dissertation
Full Text:: diamond shaped micro pin fin test articles which were fabricated on polished, n-type ‹100› single

Boundary layer control tests by suction on a circular cyclinder wing section

Creator:: Dennon, Jack Dwight
Resource Type:: Masters Thesis
Full Text:: found by experiment. The porosity index for the model was T = Z. O and the exponent, n, was found to

A Computational Fluid Dynamics Investigation of Hemolysis Potential in a Microfluidic Hemoperfusion Device Designed for Use in Sepsis Treatment

Creator:: Myers, Karl N.
Abstract:: The potential of red blood cell (RBC) and platelet damage was studied for a novel microfluidic hemoperfusion device currently in development at Oregon State University for use in treating sepsis. COMSOL 4.4's computational fluid dynamics (CFD) module was used to examine shear rate profiles in laminar, Newtonian blood flow throughout...
Resource Type:: Honors College Thesis
Full Text:: Designed for Use in Sepsis Treatment by Karl N. Myers A PROJECT submitted to Oregon

Large-strain softening of aluminum in shear at elevated temperature

Creator:: Alhajeri, Saleh N.
Abstract:: Pure aluminum deformed in torsion (shear) at elevated temperatures reaches a broad "peak" stress and then undergoes about a 17% decrease in flow stress with deformation to roughly 1-2 equivalent uniaxial strain. Beyond this strain the flow stress is approximately constant. The sources for this softening are unclear. The suggested...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Saleh N. Aihajeri for the degree

Elastodynamic analysis of a propagating finite crack in a micropolar elastic solid

Creator:: Han, Seog-young
Abstract:: A dynamic propagation of a finite crack of opening mode in a micropolar elastic solid was investigated. By using an integral transform method, a pair of twodimensional singular integral equations governing stress and couple stress was formulated in terms of the displacement transverse to the crack, macro- and microrotations, and...
Resource Type:: Dissertation
Full Text:: ./Kenn-60 Redacted for Privacy Mysore N. L. narasimnan A dynamic propagation of a finite crack of

A study of thermal stratification in the cold legs during the subcooled blowdown phase of a loss of coolant accident in the OSU APEX Thermal Hydraulic Testing Facility

Creator:: Wachs, Daniel M.
Abstract:: The phenomena of interest in this work is the thermal stratification which occurs during the early stages of a loss of coolant accident (LOCA) in the OSU APEX Thermal Hydraulic Test Facility, which is a scaled model of the Westinghouse AP600 nuclear power plant. Thermal stratification has been linked to...
Resource Type:: Masters Thesis
Full Text:: following equation; Qloop QHPIT T + Tloop n HP1 Qloop + QHPI Vloop + QHPI (2.4) equation 2.2 can then

ScholarsArchive@OSU

Experimental study of subcooled water spray cooling using flow symmetric micro-structured surfaces

Geometric Chatter Stability Index for Milling and Modeling of Chip Pulling Effect

Modelling Thin Liquid Film Draining of Bubbles on Porous Media in Confined Geometry

Optimal control of an underactuated bipedal robot

Single Phase and Flow Boiling Heat Transfer and Flow Characterization in Microscale Pin Fin Heat Sinks

Boundary layer control tests by suction on a circular cyclinder wing section

A Computational Fluid Dynamics Investigation of Hemolysis Potential in a Microfluidic Hemoperfusion Device Designed for Use in Sepsis Treatment

Large-strain softening of aluminum in shear at elevated temperature

Elastodynamic analysis of a propagating finite crack in a micropolar elastic solid

A study of thermal stratification in the cold legs during the subcooled blowdown phase of a loss of coolant accident in the OSU APEX Thermal Hydraulic Testing Facility

Limit your search

Academic Affiliation

Advisor

Commencement Year

Committee Member

Conference Name

Creator

Contributor

Date

Decade

Degree Field

Degree Level

Degree Name

File Format

Language

License

Non-Academic Affiliation

Peer Reviewed

Resource Type

Rights Statement

Subject

Search Constraints

Search Results

Limit your search