Subsonic aerodynamics experimental research on gas-dynamic parameters of the flow
Journal Title: INCAS BULLETIN - Year 2010, Vol 2, Issue 2
Abstract
Subsonic wind tunnels are generally aerodynamic equipment allowing to obtain in one of their elements, namely in the experimental area where the model is placed, a uniform and stable airflow of determined speed. Wind tunnels of low subsonic speed, usually with continuous running, are plants where the air, driven by a fan, reach in the experimental area speeds up to 180 m/s (M <0,5). They look like tubes with (convergent - divergent) variable section. In our case the wind tunnel is a Prandtl type closed circuit in a horizontal plane, with a single return circuit and closed testing room. To reduce turbulence in the wind tunnel, the number of fan blades whose peripheral speed should not exceed 200 m/s should be as large as possible (which is the case of the INCAS subsonic wind tunnel with 12 blades). The present article is focused on the following topics: vertical and horizontal deflection and turbulence in the experimental area.
Authors and Affiliations
Corneliu OPREAN, Claudia DOBRE
Keywords
Related Articles
- EP ID EP139799
- DOI 10.13111/2066-8201.2010.2.2.11
- Views 68
- Downloads 0
The Effects of Fibre Volume Fraction on a Glass-Epoxy Composite Material
This paper focuses on the analysis of the longitudinal mechanical properties of Glass Fibre Reinforce Plastic (GFRP) plates with different fibre volume fraction, Vf, by considering both analytical and experimental method...
Unmanned aero-amphibious vehicle: preliminary study on conceptual design
This research paper deals with the methods of designing of an unmanned aero-amphibious vehicle finally allowing its manufacture. The design does not includes only the structure and electronics circuit but also the contro...
Trigger event – a key factor in adverse Aircraft/Rotorcraft Pilot Couplings
An important element that interacts unfavorably with pilot and aircraft is the triggering event. Without a trigger event (or a chain of triggering events) A/RPC does not appear. This study presents an overview of diffe...
ELIE CARAFOLI – PROFESSOR, ENTREPRENEUR and PATRIOT SCIENTIST
[b]EXPLOSIVE FORMING – ECONOMICAL TECHNOLOGY FOR AEROSPACE STRUCTURES[/b]
The explosive forming represents a technological alternative for obtaining small-lot parts, with inexpensive and efficient manufacturing preparation. The explosive forming processing methods present a series of important...