Abstract: The optimization of many engineering design problems requires a nonlinear programming algorithm that is robust, efficient, and feasible at intermediate iterations. Based on the strengths of the ...

Abstract: Conditions in the internal-air system of a high-pressure turbine stage are modeled using a rig comprising an outer preswirl chamber separated by a seal from an inner rotor-stator system. Preswirl ...

Abstract: Pressure profiles measured across the film/pocket interface of an externally-pressurized air-lubricated circular thrust bearing are presented. One of the thrust pads was vibrated in an attempt to ...

Abstract: The philosophy of safety management is a relatively new method of controlling safety policies, procedures, and practices within a company. This philosophy is currently being implemented by many construction companies to ...

Abstract: This paper describes a combined computational and experimental study of the heat transfer in a rotating cavity with a peripheral inflow and outflow of cooling air for a range of rotational ...

Abstract: In the system considered here, corotating “turbine” disks are cooled by air supplied at the periphery of the system. The system comprises two corotating disks, connected by a rotating cylindrical ...

Abstract: In most gas turbines, blade-cooling air is supplied from stationary preswirl nozzles that swirl the air in the direction of rotation of the turbine disk. In the “cover-plate” system, the ...

Abstract: Fossil fuel extraction activities generate wastewaters that are often high in total dissolved solids (TDS) and specific constituents that can affect drinking water, if these wastewaters enter surface waters. Control of TDS ...

Abstract: This paper investigates heat transfer in a rotating disk system using preswirled cooling air from nozzles at high and low radius. The experiments were conducted over a range of rotational ...