ZKP Wing, Oscillating Aileron
Abstract
This Data Set contains pressure distributions measured on the ZKP wing for an oscillating aileron in the ONERA fransonic 5 1 wind tunnel at Modane, France, in late 1982. The tests were part of a cooperative project between MBB, ONERA, and the Aerospatiale Corporation. The purpose of the tests was to obtain steady and unsteady pressures due to fast-moving control surfaces in transonic flow, likely to be encountered in the operation of active control systems for transport aircraft. The following is a number of comments on the diagrams and tables. GEOMETRY OF EXPERIMENTAL MODEL The model geometry is shown in Fig. 3 to 5. Figure 3 shows the model including the major dimensions of the half-fuselage in a coordinate system parallel to the tunnel floor and walls. Figure 4 shows the dimensions of the wing and the aileron when rotated by the dihedral angle of 4.787 deg into the plane z = 0 of the coordinate system in which the profile coordinates are given by Ref. t. Figure 5 shows the details of the aileron geometry in cross-section, including nose and gap geometry. COMPARISON WITH AGARD COMPUTATIONAL PROGRAMME OF REF. 1 Model geometry Unlike the computational model (Ref. 1, Fig. 7) the experimental model has a half-fuselage as shown in Fig. 3. This changes the definition of the root chord which is now smaller than the computational root chord because of the taper of the wing (see Fig. 4). The difference in the definition of the root chord affects the specifications of reduced frequency and Reynolds number as shown in Para. 12, NOTATION. Otherwise the two planforms and their coordinate origins are identical. Furthermore, the gap between aileron and wing spar (Fig. 5) of the experimental model was not sealed, as stated in Ref. 1. The gap is 0.3-0.5 mm wide. Instrumentation The number and location of the sections at which pressures were measured where changed from the values given in Ref. 1 to those given in Fig. 6.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 2000
- Accession Number
- ADP010709
Entities
People
- H. Zimmermann
- K. Dau
- S. Vogel