The current study presents the results of the aerodynamic noise prediction of the flow field around a NACA 0012 airfoil at a chord-based Reynolds number of 100,000 and at 8.4 degree angle of attack. An incompressible Large Eddy Simulation (LES) turbulence model is applied to obtain the instantaneous turbulent flow field. The noise prediction is performed by the Ffowcs Williams and Hawkings (FW-...

one of the popular and well known models in boundary layer that is implemented in most of the operational and familiar models is the mellor-yamada model of atmospheric boundary layer. one reason that this model is so popular is its ability in simulations and exposing of different phenomena in the boundary layer. this model has been constructed based on second order closure hypothesis. beside al...

A sudden sprout of the COVID-19 pandemic all over world has changed life millions people. Paradigm shift in thinking for adoption digital learning learners and teachers is difficult. This a situation when sometimes it inevitable necessity todays circumstances to switch some educational activities adopting education. It may be difficult suddenly their mindset turn new methods teaching. The aim f...

Among various diseases one of the hazardous that takes uncountable lives every year is heart disease. In todays world, it believed person dies from disease minute. By WHO report number deaths take place due to 1.75 million, with expected rise 75 million by 2030. As a result, an accurate and fast prognosis critical necessity for lowering disease-related death rates. The Angiography easiest effec...

The airflow in the modeled glottal constriction was simulated by the solutions of the Navier-Stokes equations for laminar flow, and the corresponding Reynolds equations for turbulent flow in generalized, nonorthogonal coordinates using a numerical method. A two-dimensional model of laryngeal flow is considered and aerodynamic properties are calculated for both laminar and turbulent steady flows...

In this article we will describe our research eeorts in coping with a trade-oo that can be often found in the control and optimization of todays business processes. Though centralized control may achieve near-to-optimum results in optimizing the system behavior, there are usually social, technical and security restrictions on applying centralized control. Distributed control on the other hand m...

Music sources are most commontly shared in music scores scanned or printed on paper sheets. These artifacts are rich in information, but since they are images it is hard to re-use and share their content in todays’ digital world. There are modern languages that can be used to transcribe music sheets, this is still a time consuming task, because of the complexity involved in the process and the ...