Application of pressure-sensitive paint for determination of the pressure field and calculation of the forces and moments of models in a wind tunnel

Klein, Christian; Engler, Rolf; Henne, Ulrich; Sachs, Werner

doi:10.1007/s00348-005-1010-8

Cited by 111 publications

(52 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…This is particularly the case for Eu 3+ complexes. Some of that species are completely insensitive to oxygen (and also to temperature), so that they can be used as inert reference dye in oxygen sensors or PSPs [86]. Yet, some Tb 3+ complexes that are sensitive to oxygen have been reported.…”

Section: Oxygen Sensorsmentioning

confidence: 98%

Luminescent Chemical and Physical Sensors Based on Lanthanide Complexes

Spangler

Schäferling

2010

Lanthanide Luminescence

View full text Add to dashboard Cite

Luminescent lanthanide complexes (LLCs) are versatile probes for the determination of a variety of analytes such as metal ions, anions, hydrogen peroxide, ATP, pH, or oxygen. Antenna chromophores have been introduced as ligands for sensitizing lanthanide emission. The ligand system or the lanthanide ion can act as receptors for reversible binding of analytes. Thus, the response of luminescence emission can occur via ligand or metal-centered processes, which will both be discussed. LLCs, particularly Eu 3+ and Tb 3+ complexes, have been incorporated in solid state matrices, e.g., polymer hydrogels or silica to obtain optical sensor layers. A selection of such sensitive materials will be outlined, including sensors for the analytically relevant parameters oxygen, pH, hydrogen peroxide, humidity, and temperature.

show abstract

Section: Oxygen Sensorsmentioning

confidence: 98%

Luminescent Chemical and Physical Sensors Based on Lanthanide Complexes

Spangler

Schäferling

2010

Lanthanide Luminescence

View full text Add to dashboard Cite

show abstract

“…Research on PSPs was initially performed in the former Soviet Union at the Central Aerohydrodynamic Institute, Moscow, and later on in numerous other aerodynamic research facilities all over the world including NASA and the University of Seattle (USA), JAXA (Japan), Onera (France), and DLR (Germany). The groups of Troyanovsky, [12] Gouterman and Khalil, [13] Asai and Amao, [2,14] Engler and Klein, [15] Schanze, [16] Merienne, [17] and MacCraith [18] have made essential contributions. The state of the art has recently been reviewed.…”

Section: Pressure-sensitive Paintsmentioning

confidence: 99%

Sensor Paints

Wolfbeis

2008

Advanced Materials

117

View full text Add to dashboard Cite

Fluorescence microscopy is widely used for chemical imaging of intrinsically fluorescent chemical species, such as chlorophylls, or nonfluorescent species (e.g., DNA) that have been labeled appropriately or to which a relevant molecular probe has been added. However, there are numerous analytes that neither have an intrinsic luminescence nor can be rendered luminescent with the help of labels or probes. Such parameters include oxygen, pH, CO2, ammonia, and glucose. There are also numerous applications where the 2D distribution of a chemical or physical parameter is of interest. The use of a “sensor paint” is ideal in such situations. The state of this new technology is discussed herein with emphasis on current and future trends, for example, the use of pressure‐ and temperature‐sensitive paints; known technological limitations are also discussed. These “paints” respond to a (bio)chemical parameter with a change in their optical properties. The object of interest is painted and the color or fluorescence of the paint is monitored by optical imaging. This technique enables monitoring of physical and chemical parameters, over relatively large areas and in real time.

show abstract

“…In particular, pressure sensitive paint (PSP) has demonstrated its capabilities in determining surface pressure and aerodynamic force coefficients, provided that the flow is exerting a considerable pressure on the surface model (McLachlan and Bell 1995). The sensitivity of the technique to temperature, however, may limit its application in flows where thermal effects are not negligible (Klein et al 2005).…”

Section: Introductionmentioning

confidence: 99%

Surface pressure and aerodynamic loads determination of a transonic airfoil based on particle image velocimetry

Ragni

Ashok

Oudheusden

et al. 2009

Meas. Sci. Technol.

View full text Add to dashboard Cite

The present investigation assesses a procedure to extract the aerodynamic loads and pressure distribution on an airfoil in the transonic flow regime from particle image velocimetry (PIV) measurements. The wind tunnel model is a two-dimensional NACA-0012 airfoil, and the PIV velocity data are used to evaluate pressure fields, whereas lift and drag coefficients are inferred from the evaluation of momentum contour and wake integrals. The PIV-based results are compared to those derived from conventional loads determination procedures involving surface pressure transducers and a wake rake. The method applied in this investigation is an extension to the compressible flow regime of that considered by van Oudheusden et al (2006 Non-intrusive load characterization of an airfoil using PIV Exp. Fluids 40 988-92) at low speed conditions. The application of a high-speed imaging system allows the acquisition in relatively short time of a sufficient ensemble size to compute converged velocity statistics, further translated in turbulent fluctuations included in the pressure and loads calculation, notwithstanding their verified negligible influence in the computation. Measurements are performed at varying spatial resolution to optimize the loads determination in the wake region and around the airfoil, further allowing us to assess the influence of spatial resolution in the proposed procedure. Specific interest is given to the comparisons between the PIV-based method and the conventional procedures for determining the pressure coefficient on the surface, the drag and lift coefficients at different angles of attack. Results are presented for the experiments at a free-stream Mach number M = 0.6, with the angle of attack ranging from 0• to 8• .

show abstract

Application of pressure-sensitive paint for determination of the pressure field and calculation of the forces and moments of models in a wind tunnel

Cited by 111 publications

References 8 publications

Luminescent Chemical and Physical Sensors Based on Lanthanide Complexes

Luminescent Chemical and Physical Sensors Based on Lanthanide Complexes

Sensor Paints

Surface pressure and aerodynamic loads determination of a transonic airfoil based on particle image velocimetry

Contact Info

Product

Resources

About