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Mechanical Engineering

American University in Cairo

Theses/Dissertations

2008

Articles 1 - 4 of 4

Full-Text Articles in Engineering

Applications Of Data Mining For Educational Decision Support, Mohamed Nabil Essam El-Din Ahmed El-Refai Khamis Jun 2008

Applications Of Data Mining For Educational Decision Support, Mohamed Nabil Essam El-Din Ahmed El-Refai Khamis

Archived Theses and Dissertations

No abstract provided.


Analysis Of The Flow Through A Francis' Turbine Runner Using Computational Fluid Dynamics, William Anthony Jun 2008

Analysis Of The Flow Through A Francis' Turbine Runner Using Computational Fluid Dynamics, William Anthony

Archived Theses and Dissertations

This study investigates the fluid flow through the runner of an exceptionally low specific speed Francis’ turbine using computational fluid dynamics (CFD) to predict some performance characteristic of the runner, and to determine the effect of cavitation on the flow features within the turbine. It employs FLUENT CFD codes for the analysis. The study was carried out under steady conditions in two- dimensional analysis, primarily using the RNG k-ε turbulence model. It is mainly on single phase analysis; however a single case of two-phase cavitation modeling was performed in order to evaluate cavitation effects. The hydraulic losses were much dependent …


Controlling The Processing Parameters For Consolidation Of A1-2124 Micro And Nanopowders Into Bulk Nanostructured Material By Combined Hot Compaction - Intense Plastic Straining, Ahmad Mar Wagih Sadek Jun 2008

Controlling The Processing Parameters For Consolidation Of A1-2124 Micro And Nanopowders Into Bulk Nanostructured Material By Combined Hot Compaction - Intense Plastic Straining, Ahmad Mar Wagih Sadek

Archived Theses and Dissertations

No abstract provided.


Design And Optimization Of Input Shapers For Liquid Slosh Suppression, Ameen Aboel Hassan Feb 2008

Design And Optimization Of Input Shapers For Liquid Slosh Suppression, Ameen Aboel Hassan

Archived Theses and Dissertations

The need for fast maneuvering and accurate positioning of flexible structures poses a control challenge. The flexibility inherent in these lightly damped systems creates large residual vibrations in response to fast disturbances. Several control approaches have been proposed to tackle this class of problems, of which the input shaping technique seems quite appealing. While input shaping has been widely investigated to attenuate residual vibrations in flexible structures, less attention was granted to expand its viability in further applications. It is therefore the aim of this work to develop a methodology for applying input shaping techniques to suppress sloshing effects in …