To-date, however, potential cabin noise problems, moderate aviation fuel costs, and the perceived prejudice of the general public towards propeller driven aircraft, have hindered the introduction of advanced propellers on large commercial aircraft. In order to further improve the acoustic performance of the advanced propeller, it is necessary to fully understand the complex flow patterns occurring on the blade and hub surfaces and in the general surrounding flow field. Computational Fluid Dynamics CFD is ideally suited for this task and has been deployed with some success to-date. However, the CFD solvers typically used are based on second- order numerical methods. This means that they contain a limiting intrinsic error which makes them very dissipative and unsuitable for tracking the propagation of shed blade-tip vortices.
Research – Computational Fluid Dynamics Laboratory
Instability dynamics are responsible for the unsteady heat transfer in fire environments, which have been observed experimentally. The mesh superimposed on the bottom of the plume is the underlying computational grid utilized to carry out the calculation. An improved understanding of instability dynamics will result in more accurate predictions of fire intensity and growth. From its relatively humble beginnings in , CCR has become a substantial academic supercomputing facility, with a technical staff of 13 and a computing capacity of about 13 Tflops. Date of Image: April
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Objective: Velopharyngeal VP closure has high impact on the quality of life, especially in patients with cleft palate. For better understanding the VP closure, it is important to understand the airflow dynamics of different closure patterns, including circular, coronal, sagittal, and circular with a Passavant's ridge. The purpose of this study was to demonstrate the airflow characteristics of different velopharyngeal closure patterns.
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