Reducing Fuel Consumption in Bucharest Terminal Area for Flights Using a Standard Instrument Departure

Reconfiguration of the standard instrument departure and standard arrival routes at certain airports can bring significant reductions in fuel consumption and level of noise. This can be done either by implementing modern radionavigation aids for terminal areas or by eliminating the flying restrictions over cities and inhabited places and designing of low level of noise procedures for these areas. These solutions have other important benefits like decreasing the workload for the air traffic controllers and reducing the total flight time. The paper describes an operational solution in this manner for Bucharest Henri Coanda International Airport

PRINCIPLE OF YIN-YANG COMPLEMENTARITY IN AEROSPACE SCIENCES

This paper is a transdisciplinary field that combines, harmoniously, the principle of complementarity introduced by the great physicist Niels Bohr in quantum mechanics and the ancient Chinese philosophy, whose essence is "Diagram of the Supreme Ultimate". The allegations are supported by religious, quantum and geometry arguments. Defined concepts of di-mension, coordinate system and specific concepts as: perpendicular in geometry, orthogonal in mathematical analysis, correct in law and ortho in religion. It is shown, further, classification for principle of complementarity, by the two manifestations, harmonic and non-harmonic. As applications, we use the known areas of fluid mechanics, hydro and aerodynamics. Based on the concepts of source, vortex and parallel motion through dyadic and triadic combinations, arriving, finally at a scientific explanation of the philosophical concept of Yin and Yang, underlying Chinese philosophy

CONNECTIONS BETWEEN PROFESSOR ELIE CARAFOLI’S ACTIVITY AND THE DEVELOPMENT OF THE AERONAUTICAL UNIVERSITY EDUCATION FOCUSING THE PROPULSION SYSTEMS FIELD

The intent of this paper is to reveal other features of Professor Elie Carafoli’s complex personality,his devotion and fully commitment to the development of the aeronautical university education; thefocus on the propulsion systems field was justified by the rapid succession of the political events onthe worldwide stage and the subsequent mission assignment of the aviation as the ultimate weapon.A parallel evolution of the aerospace academic education, within the field of the propulsionsystems, with fully details about the courses and professors was presented. The spiritual legacy ofthe Professor still continues today to drive generations of students to successful careers in aviation:academic education, fabrication, operations, top managemen

Acoustic control study of turbofan nozzles with triangular chevrons

This paper has a small part dealing with the notion of chevron and the process that helps reducing the noise pollution. Based on the gas dynamics and the geometrical parameters of the turbofan jet engine a model of CFD data processing is created. In this process the influence of chevrons on acoustic wave intensity produced by the jet is observed by analyzing this process. A series of tests have been made on 10 si 20 lobed chevrons. The combination between them and the 7 resulting cases have been studied, namely the triangular chevrons in order to settle the influence of the geometrical parameters on the flow and on the jet acoustics. Finally the contribution of the chevrons in noise pollution reduction has been highlighted