Simultaneous PSP and TSP measurements of transient flow in a long-duration hypersonic tunnel

Peng, Di; Jiao, Lingrui; Sun, Zhigang; Gu, Yunsong

doi:10.1007/s00348-016-2280-z

Cited by 42 publications

(17 citation statements)

References 25 publications

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“…This opens possibilities of surface pressure and temperature measurements in high-temperature environment that are desired in many scenarios of aerodynamic research. For example, the pressure loads, surface temperatures and heat fluxes are critical parameters in studies of jet impingement, turbomachinery, reentry objects and hypersonic aircrafts [39][40][41].…”

Section: Potential Application In Oxygen/pressure Sensingmentioning

confidence: 99%

“Oxygen quenching” in Eu-based thermographic phosphors: Mechanism and potential application in oxygen/pressure sensing

Yang

Peng

Shan

et al. 2018

Sensors and Actuators B: Chemical

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The effect of ambient oxygen concentration on thermographic phosphor thermometry was investigated to uncover the "oxygen quenching" mechanism of Eu-based phosphors using a lifetime-based measurement system. The phosphors being studied were the Eu doped yttria stabilized zirconias (YSZs) with Y 3+ concentrations of 0, 8, 12 and 57 mol%, having monoclinic, tetragonal, cubic and δ crystalline lattice, respectively. To vary the ambient oxygen concentration, three different gas phases (air, oxygen and nitrogen with methane) were used. It was found that the phosphorescent lifetimes and intensities of all four phosphors were sensitive to the ambient oxygen concentration, while the reference phosphor, Y2SiO5:Eu, was not influenced. The "oxygen quenching" phenomenon observed in Eu-doped YSZs was attributed to the oxygen vacancies in the phosphors. In addition, the four YSZ:Eu phosphors exhibited different sensitivity to ambient oxygen concentration. The oxygen sensitivity was found to be closely related to the site symmetry of Eu 3+ , which was previously determined by

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Section: Potential Application In Oxygen/pressure Sensingmentioning

confidence: 99%

“Oxygen quenching” in Eu-based thermographic phosphors: Mechanism and potential application in oxygen/pressure sensing

Yang

Peng

Shan

et al. 2018

Sensors and Actuators B: Chemical

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“…Furthermore, a change in TP characteristics between 20 and 60 • C was also observed and can be included in a detailed analysis of the measurement results-for example, when applying TSP data as the input data for inverse problem solution or in the modeling of an air-TSP heat transfer processmodel. Nevertheless, it should be underlined that the TP changes according to the temperature change are moderate, even at the temperature variation scale indicated in [19,20]. The same concerns sensitivity to atmospheric humidity, whichwas proven to be only moderate.…”

Section: Discussionmentioning

confidence: 97%

“…[19] from hypersonic tunnel experiments, the temperature increase ∆T can reachup to 80 K. Liu at al. [20] studied the effect of temperature-dependent diffusivity on investigated TSP heat flux measurements, but in the set of considered materials, the TSP layer was not included, most probably because of a lack of necessary data.…”

Section: Introductionmentioning

confidence: 99%

Thermophysical Properties of Temperature-Sensitive Paint

Panas

Szczepaniak²,

Stryczniewicz

et al. 2021

Materials

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The complex thermophysical property of temperature-sensitive paint (TSP) research is discussed. TSP is used for visualization of the surface temperature distribution in wind tunnel aerodynamic tests. The purpose of this research was to provide reliable, experimental, thermophysical data of the paint applied as a coating. As TSP is applied as thin surface layers, investigation of its final properties is challenging and demands the application of non-standard procedures. At present, most measurements were performed on composite specimens of TSP deposed onto a thin metallic film substrate or on TSP combined with a cellulose sheet support. The studies involved gravimetric,, thermogravimetric, and microcalorimetric analyses, transversal thermal diffusivity estimation from laser flash data and in-plane effective thermal diffusivity measurements done by the temperature oscillation technique. These results were complemented with scanning electron microcopy analysis, surface characterization and the results of dilatometric measurements performed on the TSP bulk specimens obtained from liquid substrate by casting. Complex analysis of the obtained results indicated an isotropic characteristic of the thermal diffusivity of the TSP layer and provided reliable data on all measured thermophysical parameters—they were revealed to be typical for insulators. Further to presenting these data, the paper, in brief, presents the applied investigation procedures.

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“…Pressure-sensitive paint (PSP) has been widely utilized in aerospace applications [ 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10 ]. In combination with a fast frame-rate camera, PSP measurement opens its application to unsteady flow measurement on surfaces and to short duration testing [ 11 , 12 , 13 , 14 , 15 ]. PSP uses a photophysical process of oxygen quenching to relate an oxygen pressure of a testing fluid to a luminescent signal.…”

Section: Introductionmentioning

confidence: 99%

Dynamic and Steady Characteristics of Polymer-Ceramic Pressure-Sensitive Paint with Variation in Layer Thickness

Hayashi

Sakaue

2017

Sensors

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Polymer-ceramic pressure-sensitive paint (PC-PSP) has been investigated as a surface-pressure sensor for unsteady aerodynamics and short duration measurements. This PSP provides a fast response to a change in pressures with a spray-coating ability. Because it is sprayed onto an aerodynamic surface, the thickness of PC-PSP may play an important role in determining the performance of this sensor. The thickness of other fast PSPs, such as anodized aluminum pressure-sensitive paint, is a major factor in determining its performance. We vary the thickness of PC-PSP from 10 to 240 μm in order to study its effects on PSP measurement characteristics including time response, signal level, pressure sensitivity, and temperature dependency. It is found that the thickness does affect these characteristics. However, a thickness over 80 μm provides uniform performance in these characteristics.

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Simultaneous PSP and TSP measurements of transient flow in a long-duration hypersonic tunnel

Cited by 42 publications

References 25 publications

“Oxygen quenching” in Eu-based thermographic phosphors: Mechanism and potential application in oxygen/pressure sensing

“Oxygen quenching” in Eu-based thermographic phosphors: Mechanism and potential application in oxygen/pressure sensing

Thermophysical Properties of Temperature-Sensitive Paint

Dynamic and Steady Characteristics of Polymer-Ceramic Pressure-Sensitive Paint with Variation in Layer Thickness

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