Development of Measurement Methods for Application to a Wind Tunnel Test of an Advanced Transport Model

An Experimental Investigation of the STOL Performance of Cal Poly's AMELIA in the NFAC

“…In addition to the measurements listed above, direct measurement of skin friction using the Fringe Imaging Skin Friction technique (FISF) was obtained during each of the ten critical test points. The FISF technique is a non-intrusive method for the measurement of global skin friction direction and magnitude [17].…”

High-Frame-Rate Oil Film Interferometry

“…Mylar film is another test surface which produced good quality fringes and is a cost effective solution. In his master's thesis, Ehrmann29 investigated using a polyurethane enamel, true black Imron®. He found the coating to be very durable and produced better fringe visibility than polished stainless steel.…”

Single Camera Photogrammetry MATLAB Solver Developed for Automation of the Oil Interferometry Process

“…Fringe-Imaging Skin Friction oil flow geometry schematic, notice the fringes created by light interfering with different oil thickness [17] ….………………………………….……………3 Figure 2. Mercury lamp and light shroud assembly, camera shown in an orthogonal position relative to the model, lights placed below the model oriented towards shroud [3] …..……….………………..4 Figure 3. Optical path of camera focal array and light reflection against model surface, illustration of light incidence angle [3] …………………………….………………………………….……...5 Figure 4.…”

“…Mercury lamp and light shroud assembly, camera shown in an orthogonal position relative to the model, lights placed below the model oriented towards shroud [3] …..……….………………..4 Figure 3. Optical path of camera focal array and light reflection against model surface, illustration of light incidence angle [3] …………………………….………………………………….……...5 Figure 4. Peak-to-peak fringe intensity analysis applied to two-dimensional propagation of lines of oil; SF11 Schott glass [16] ………………………...…………….…………………………………8 Figure 5.…”

“…Flow direction from image top to image bottom [16] ……………………….…………...14 Figure 7. Sticker and etched fiducial markings comparison, etched fiducial markings result in a less turbulent boundary layer than compared to sticker markings [3] …….……..………………………18 Figure 8. Hand drawn oil smear centerlines in CXWIN5G, user draws the green and red line and CXWIN5G determines where the line intersects with the oil smear fringes [3] …...…………………….19 .…”