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Full-Text Articles in Mechanical Engineering

Numerical Simulation Of Flow In Ozonation Process, Jie Zhang May 2014

Numerical Simulation Of Flow In Ozonation Process, Jie Zhang

Graduate Theses and Dissertations

In the last two decades, Computational Fluid Dynamics (CFD) has shown great potential as a powerful and cost-efficient tool to troubleshoot existing disinfection contactors and improve future designs for the water and wastewater treatment utilities.

In the first part of this dissertation two CFD simulation methodologies or strategies for computing turbulent flow are evaluated in terms of the predicted hydraulic performance of contactors. In the LES (large eddy simulation) methodology, the more energetic, larger scales of the turbulence are explicitly computed or resolved by the grid. In the less computationally intensive RANS (Reynolds-averaged Navier-Stokes) methodology, only the mean component of ...


Multi-Objective Optimization Based Engineering Decision Tool, Adam Joe Shuttleworth Jan 2011

Multi-Objective Optimization Based Engineering Decision Tool, Adam Joe Shuttleworth

Graduate Theses and Dissertations

Prior to the acceptance of computer aided engineering (CAE) software in the product development process (PDP), product development was characterized by a design-test-redesign-test cycle. This activity was time consuming and resource intensive. As CAE software tools have been integrated into the PDP, the PDP can be characterized by a design-simulate-redesign-test cycle. The addition of CAE tools to the PDP has reduced the time to market and resource consumption.

In the last decade, CAE software has become easier to use and computer power has increased such that CAE software is more widely used in the PDP. In parallel, there has been ...