High frame-rate imaging of surface pressure distribution using a porous pressure-sensitive paint

Sakamura, Yoshitaka; Matsumoto, Masashi; Suzuki, Tateyuki

doi:10.1088/0957-0233/16/3/019

Cited by 38 publications

(15 citation statements)

References 27 publications

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“…Sakamura et al [19] applied a fast-response porous PSP technique to the surface pressure imaging for an unsteady flow induced in a two-dimensional Laval nozzle during its starting process at a frame frequency of 5 kHz. The porous PSP used in that work was composed of [Ru(dpp) 3 ] 2þ and a commercial silica-gel TLC plate.…”

Section: Shock Tubesmentioning

confidence: 99%

A review of pressure-sensitive paint for high-speed and unsteady aerodynamics

Gregory

Asai

Kameda

et al. 2008

Proceedings of the Institution of Mechanical Engineers, Part G:

343

176

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Abstract:The current paper describes the development of pressure-sensitive paint (PSP) technology as an advanced measurement technique for unsteady flow fields and short-duration wind tunnels. Newly developed paint formulations have step response times approaching 1 ms, making them suitable for a wide range of unsteady testing. Developments in binder technology are discussed, which have resulted in new binder formulations such as anodized aluminium, thin-layer chromatography plate, polymer/ceramic, and poly(TMSP) PSP. The current paper also details modeling work done to describe the gas diffusion properties within the paint binder and understand the limitations of the paint response characteristics. Various dynamic calibration techniques for PSP are discussed, along with summaries of typical response times. A review of unsteady and high-speed PSP applications is presented, including experiments with shock tubes, hypersonic tunnels, unsteady delta wing aerodynamics, fluidic oscillator flows, Hartmann tube oscillations, acoustics, and turbomachinery. Flowfields with fundamental frequencies as high as 21 kHz have been successfully measured with porous PSP formulations.

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Section: Shock Tubesmentioning

confidence: 99%

A review of pressure-sensitive paint for high-speed and unsteady aerodynamics

Gregory

Asai

Kameda

et al. 2008

Proceedings of the Institution of Mechanical Engineers, Part G:

343

176

View full text Add to dashboard Cite

show abstract

“…The response time of the TLC-PSP can be as low as 10 µs. Sakamura et al 22 used the TLC-PSP in the shock tube and Laval nozzle testing. The porous PSP captured the shock wave motion in the order of kilohertz during the starting process of the supersonic nozzle in a qualitative manner.…”

mentioning

confidence: 99%

Pressure sensitive paint measurements at high Mach numbers

Zare‐Behtash

Yang

et al. 2016

Flow Measurement and Instrumentation

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Depending on the case study examined, different PSPs may be used, each applied using a different method onto the model. For polymer PSP the paint is sprayed on. In contrast, the model may first be anodized or covered with a thin-layer chromatography plate and then dipped in PSP. The objective of the present study is to analyse the characteristics of different PSP substrates at high Mach numbers which use two well known PSP molecules: (i) tris-Bathophenanthroline Ruthenium (II) Perchlorate and (ii) Platinum-tetrakis (pentafluorophenyl) Porphyrin. Using a double ramp geometry under a Mach 5 hypersonic flow the feasibility of applying each of the aforementioned PSP methods is investigated and compared to discrete pressure measurements. The flow over a 3D bump under a Mach 1.3 flow is also studied to give a broader Mach number range. In the hypersonic tunnel, all PSP techniques and formulations were able to capture the complex flowfield with the results quantitatively agreeing with the discrete measurements. For the transonic bumps however, it was found that the polymer based Platinum PSP could map the flowfield more accurately.

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“…3,38,39 Particularly, imaging of oxygen partial pressure ( p O 2 ) is of high practical relevance. 40 In this work, a simple oxygen imaging platform with the AgNWs@PdOEP–PMMA microfiber mat was demonstrated. A step change of p O 2 was used to characterize the color-changing features of the mat sensing film.…”

Section: Resultsmentioning

confidence: 99%

Silver Nanowire-Induced Sensitivity Enhancement of Optical Oxygen Sensors Based on AgNWs–Palladium Octaethylporphine–Poly(methyl methacrylate) Microfiber Mats Prepared by Electrospinning

et al. 2018

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Sensitivity enhancement of optical oxygen sensors is crucial for the characterization of nearly anoxic systems and oxygen quantification in trace amounts. In this work, for the first time we presented the introduction of silver nanowires (AgNWs) as a sensitivity booster for optical oxygen sensors based on AgNWs–palladium octaethylporphine–poly(methyl methacrylate) (AgNWs@PdOEP–PMMA) microfiber mats prepared by electrospinning. Herein, a series of sensing microfiber mats with different loading ratios of high aspect ratio AgNWs were fabricated, and the corresponding sensitivity enhancement was systematically investigated. With increasing incorporated ratios, the AgNWs@PdOEP–PMMA-sensing microfiber mats exhibited a swift response (approx. 1.8 s) and a dramatic sensitivity enhancement (by 243% for the range of oxygen concentration 0−10% and 235% for the range of oxygen concentration 0–100%) when compared to the pure PdOEP–PMMA microfiber mat. Additionally, the as-prepared sensing films were experimentally confirmed to be highly photostable and reproducible. The advantages of AgNW-induced sensitivity enhancement could be useful for the rational design and realization of revolutionary highly sensitive sensors and expected to be readily applicable to many other high-performance gas sensor devices.

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High frame-rate imaging of surface pressure distribution using a porous pressure-sensitive paint

Cited by 38 publications

References 27 publications

A review of pressure-sensitive paint for high-speed and unsteady aerodynamics

A review of pressure-sensitive paint for high-speed and unsteady aerodynamics

Pressure sensitive paint measurements at high Mach numbers

Silver Nanowire-Induced Sensitivity Enhancement of Optical Oxygen Sensors Based on AgNWs–Palladium Octaethylporphine–Poly(methyl methacrylate) Microfiber Mats Prepared by Electrospinning

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