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- W2697791431 abstract "Needs of pressure field measurement by combining experimental results obtained by PIV and governing equations are rapidly increasing. On the other hand, PTV is one of PIV techniques, whose advantages are Lagrangian particle tracking and higher measurement resolution than PIV. In this study, we proposed the new methodology to estimate pressure distribution by using irregularly-distributed pressure gradient data. The first computing step is to calculate numerical integration to obtain pressure on the grids from scattered data points. The second step is to interpolate pressure on the scattered points by using Shepard scheme. The pressure distribution is converged by iterating these two steps. We chose Taylor-Green vortex flow as a model flow to validate the computation results. The difference of boundary conditions caused the different converged pressure value, so that it is difficult to estimate pressure with high quantitative accuracy, but it is possible to discuss the relative pressure distribution qualitatively. In addition we researched the effects of grid space, the number of referenced data and wave number for computing results by using correlation coefficient. We indicated that this method is particularly available in case of low wave number flow with high resolution grid in spite of the number of referenced data." @default.
- W2697791431 created "2017-06-30" @default.
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- W2697791431 date "2014-01-01" @default.
- W2697791431 modified "2023-09-25" @default.
- W2697791431 title "J0510201 PTV-based Lagrangian pressure field measurement" @default.
- W2697791431 doi "https://doi.org/10.1299/jsmemecj.2014._j0510201-" @default.
- W2697791431 hasPublicationYear "2014" @default.
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