this paper is a computational study of the behavior of aerodynamics  characteristics of an airfoil with blunt trailing edge and  studies the effects aerodynamic performance caused by modifications made to the trailing edge. blunt trailing edge airfoils are of interest in the engineering of large wind turbine blades because they allow for a strong structure with a high aerodynamic lift to struct...

A numerical study on the influence of forward-facing cavity length upon forward-facing cavity and opposing jet combined thermal protection system (TPS) cooling efficiency under hypersonic flow is conducted, by means of which the flow field parameters, heat flux distribution along the outer body surface are obtained. The numerical simulation results are validated by experiments and the cooling e...

A model of a supersonic free-vortex aerodynamic window has been fabricated and tested. Aerodynamic performance studies show the effectiveness of the model in sealing the simulated laser cavity from higher pressure ambient surroundings. Good starting characteristics and stability of the supersonic window jet are obtained. Static pressure measurements and photographs of the flow fields clearly sh...

Aerodynamic noise becomes significant for high-speed trains but its prediction in an industrial context is difficult. The flow and aerodynamic noise behaviour of a simplified high-speed train bogie at scale 1:10 are studied here through numerical simulations. The bogie is situated in the bogie cavity and cases without and with a fairing are considered, allowing the shielding effect of the bogie...

The aim was to evaluate the effects of Functional Endoscopic Sinus Surgery (FESS) on nasal aerodynamic flow patterns using Computational Fluid Dynamics (CFD) simulations. A 3-dimensional model of nasal cavity was first constructed from CT scans of a human subject with FESS interventions on left nasal cavity. Computational fluid dynamics (CFD) simulations were then carried out for unsteady airfl...

In this paper, the acoustic environment in a vehicle cabin under the influence of highfrequencies aerodynamic sources has been studied. Some panels on the windshield, the roof, the doors, the front pillars, and the floor of a vehicle simulated as input source of noise when the car is moving at high speed, i.e. 112 km/h. The status of vehicle cabin in each of these modes has been studied and com...

This work reports cross-language differences in the voicing of initial voiced stops, and in the use of active maneuvers to achieve closure voicing, using multiparametric aerodynamic data. Oral pressure, oral and nasal flow, and acoustic data were obtained for utterance-initial /b d p t m/ for 10 speakers of Spanish, 6 speakers of French and 5 speakers of English. Voiced stops were classified as...

this work aimed to prepare a nanoemulsion preparation containing budesonide and assess its aerodynamic behavior in comparison with suspension of budesonide. in-vitro aerodynamic performance of the corresponding micellar solution (ie. nanoemulsion preparation without oil) was investigated too. nanoemulsions of almond oil containing budesonide, as a hydrophobic model drug molecule, were prepared ...