International Conference "Acoustic Climate Inside and Outside Buildings" (2014): Recent submissions
Now showing items 1-20 of 26
-
Validation of hybrid numerical methods for aeroacoustic simulations in an industrial environment
(Abstracts of the International Conference “Acoustic climate inside and outside buildings”, 2014, 2014)Airframe noise from deployed slats is considered to be the main contributor to the overall aircraft noise during approach and landing of modern airliners. Since it is generated in the vicinity of edges such as the slat ... -
Parametric study of air curtains for airframe noise reduction
(Abstracts of the International Conference “Acoustic climate inside and outside buildings”, 2014, 2014)The advancement of European society is dependent on safe, efficient, and environmentally-friendly technologies. It is an on-going challenge for European industry to meet customer and legislative requirements, satisfy ... -
Slat noise reduction by means of adaptive leading edge devices
(Abstracts of the International Conference “Acoustic climate inside and outside buildings”, 2014, 2014)Slat noise is regarded as the major noise source of state of the art high lift systems and contributes to the overall aircraft noise signature in particular during the approach phase [1]. Consequently any attempt to reduce ... -
Active control of noise generation in a rod-airfoil configuration
(Abstracts of the International Conference “Acoustic climate inside and outside buildings”, 2014, 2014)Flow control and adaptive techniques have been widely investigated as possible noise reduction approaches in modern aviation. Despite extensive studies realized on the aerodynamics of a rotating cylinder (i.e. [1, 2]), its ... -
On active noise reduction in an aircraft cabins and engine nozzles
(Abstracts of the International Conference “Acoustic climate inside and outside buildings”, 2014, 2014)An analytical approach to active noise reduction is presented in the case of a line-source in a cylindrical enclosure, minimizing the noise in a sector, corresponding to the ‘passenger head area’ of an aircraft cabin. The ... -
Experience of the National Aviation University in the application of active noise control in an aircraft cabin
(Abstracts of the International Conference “Acoustic climate inside and outside buildings”, 2014, 2014)This presentation is focused on the problem of noise reduction in the aircraft cabins including cockpits. The noise has an adverse effect on the crew first of all, since it is disturbing, tiring, and interferes with transfer ... -
Active control of fan tones by means of trailing edge blowing
(Abstracts of the International Conference “Acoustic climate inside and outside buildings”, 2014, 2014)At DLR in Berlin, a series of experiments was performed on a laboratory scale fan rig to explore the potential of trailing edge blowing (TEB) for the attenuation of tonal noise of an axial fan stage for the first three ... -
STAR: an efficient micro-jet simulator for active control in CEPRA19. Some applications
(Abstracts of the International Conference “Acoustic climate inside and outside buildings”, 2014, 2014)The need to evaluate news methods of jet noise reduction, amongst them shear layers active control with continuous or pulsed microjet concepts led the Onera Wind Tunnel Division to develop in the large anechoic facility ... -
Increase and decrease of the noise radiated by high-Reynolds-number subsonic jets through plasma synthetic jet actuation
(Abstracts of the International Conference “Acoustic climate inside and outside buildings”, 2014, 2014)Since the discovery of the existence of largescale structures in high-Reynolds-number free shear flows [1] and their role in the radiation of noise to the far field [5], the control of their dynamics has been an important ... -
On instability wave control in turbulent jets
(Abstracts of the International Conference “Acoustic climate inside and outside buildings”, 2014, 2014)The presentation is based on two main results obtained in the framework of international projects OPENAIR and Orinoco. Two considered effects are determined by control of large scale structures in the initial part of shear ... -
Correlative analysis of noise propagation
(Abstracts of the International Conference “Acoustic climate inside and outside buildings”, 2014, 2014)Noise created by traffic is one of the major problems of environmental quality in Europe. It is related to an increasingly growing dissatisfaction of the public with the current situation. In most cities, noise increases, ... -
Interdependency analysis of current and future criteria and their limits for aircraft noise control in urban areas
(Abstracts of the International Conference “Acoustic climate inside and outside buildings”, 2014, 2014)Aviation in the 21st century contributes to climate change, noise and air pollution. Together with various social and economic problems, environmental issues have the potential to constrain the operation and growth of ... -
Detailed calculation method for aircraft noise mapping based on verified input data from measurements
(Abstracts of the International Conference “Acoustic climate inside and outside buildings”, 2014, 2014)Disadvantages of existing programs for aircraft noise calculation like INM and SOUNDPLAN are the following: lack in databases of valid noise and flight performance data for aircraft manufactured in CIS countries; usage by ... -
Noise climate in communities close to Madrid airport
(Abstracts of the International Conference “Acoustic climate inside and outside buildings”, 2014, 2014)This paper assesses the noise climate existing in some communities close to Madrid airport. The residents in these communities were complaining about the noise generated by the air traffic operating from the airport. Based ... -
Noise indices for aircraft noise event assessment analysis with their dependence from measurement issues and impact assessment
(Abstracts of the International Conference “Acoustic climate inside and outside buildings”, 2014, 2014)In Poland equivalent sound levels LAeq, DAY and LAeq, NIGHT are used for noise control around the airports [1, 2]. Both of them are quite efficient for the airports with >10 000 flights annually, but for not so active ... -
Draft of the guidance document of the Russian Federation on justification of sanitary protection zones around airports
(Abstracts of the International Conference “Acoustic climate inside and outside buildings”, 2014, 2014)Boundaries of the sanitary protection zones around airports are defined by calculation and proved by measurements for three factors mainly: local air quality, aircraft noise and electromagnetic fields. For all the factors ... -
Criteria for aircraft noise control around airports and their role in reaching the strategic goals in environmental protection from aviation impact
(Abstracts of the International Conference “Acoustic climate inside and outside buildings”, 2014, 2014)The extent of the noise problem is large. In the European Union countries about 40% of the population are exposed to road traffic noise with an equivalent sound pressure level exceeding 55 dB(A) daytime and 20% are exposed ... -
Statistics of subjective assessment of sound: detection of outliers and evaluation of their contribution
(Abstracts of the International Conference “Acoustic climate inside and outside buildings”, 2014, 2014)The subjective evaluation of noise perception plays an important role in decision making in many applications in the field of acoustics, such as the evaluation of noise perception (annoyance)in communities located near ... -
Investigation of reverberation time in different purpose rooms
(Abstracts of the International Conference “Acoustic climate inside and outside buildings”, 2014, 2014)Good acoustical qualities are essential in spaces in which speech communication is important. Excessive background noise or reverberation in such spaces interferes with speech communication and thus presents negative ... -
Practical applications of floating constructions with mineral wool slabs on concrete base floor for tightened sound insulation
(Abstracts of the International Conference “Acoustic climate inside and outside buildings”, 2014, 2014)Impact and airborne sounds penetrating via separating floors between adjoined premises can be defined as the main annoying noise in multi-storey housings as well as in public residential buildings. Lithuanian regulations ...