Accuracy assessment of optical 3D measurements in hydrodynamic tunnel

Knyaz, V. A.; Ippolitov, E. V.; Novikov, M. M.

doi:10.1117/12.2592622

Cited by 2 publications

(2 citation statements)

References 17 publications

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“…At the first phase of the laboratory study the developed calibration technique [15] was applied for determination of interior orientation parameters of the photogrammetric system. The results of system calibration at laboratory hydrodynamic tunnel (Figure 2(a)) in comparison with calibration at the special multi-media calibration stand [18] are presented in Table 2.…”

Section: Resultsmentioning

confidence: 99%

Photogrammetric 3D Measurements and Visualization of Flow in Hydrodynamic Tunnel

Knyaz

Kniaz

Ippolitov

et al. 2022

Proceedings of the 32nd International Conference on Computer Graphics and Vision

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Flow visualization is an important mean for studying flow processes in aerodynamics and hydrodynamics. It allows obtaining qualitative valuable information about flow behaviour, that is needed for understanding of aerodynamic performance of an aircraft, especially in critical conditions. With growing advances in 3D optical measuring techniques, accurate 3D registration and measurements of fast developing processes became possible. The paper addresses the problem of accurate metric 3D reconstruction of flow in hydrodynamic tunnel that is necessary for studying aerodynamic process in aircraft icing conditions. It presents the techniques developed for optical measurement system calibration and for accurate flow 3D registration, and the results of laboratory flow 3D reconstruction and visualization. Experimental evaluation of the developed techniques in laboratory hydrodynamic tunnel demonstrated high accuracy of 3D measurements and readiness for applying in aircraft icing study.

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Section: Resultsmentioning

confidence: 99%

Photogrammetric 3D Measurements and Visualization of Flow in Hydrodynamic Tunnel

Knyaz

Kniaz

Ippolitov

et al. 2022

Proceedings of the 32nd International Conference on Computer Graphics and Vision

View full text Add to dashboard Cite

show abstract

“…Firstly, evaluation of the calibration technique for the optical multimedia case was performed. The results of the estimation of the interior orientation parameters at the laboratory hydrodynamic tunnel were compared with results of the calibration at the special multimedia calibration stand [38]. Table 2 presents results of the calibration for both cases, demonstrating good correspondence of two different calibrations.…”

Section: Resultsmentioning

confidence: 99%

Accurate 3D Visualization of Real Flow in Aerodynamic Study

Knyaz¹,

Tiddi²,

Novikov³

et al. 2022

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Physical flow modelling is a powerful tool in aerodynamic researches, especially in analysis of complicated and dangerous conditions. It allows to study flow behaviour and to obtain reliable results via similitude concept, that is widely used in aerodynamics and hydrodynamics. Visualization of flow jets is one of the basic tools for analysis of flow behaviour under different flying conditions. Optical registration and 3D measurement techniques extend the capacities of visual flow study, providing both qualitative and quantitative data. The presented study addresses the problem of development of the vision-based technique for accurate flow 3D registration and 3D visualization. Algorithms allowing accurate 3D reconstructing of flow jets are presented, along with discussion of application for experimental flow 3D visualization.

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Accuracy assessment of optical 3D measurements in hydrodynamic tunnel

Cited by 2 publications

References 17 publications

Photogrammetric 3D Measurements and Visualization of Flow in Hydrodynamic Tunnel

Photogrammetric 3D Measurements and Visualization of Flow in Hydrodynamic Tunnel

Accurate 3D Visualization of Real Flow in Aerodynamic Study

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