Search Menu
DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information
Search Scholarly Publications

Title: PIV/BOS synthetic image generation in variable density environments for error analysis and experiment design

Abstract

In this work, we present an image generation methodology based on ray tracing that can be used to render realistic images of Particle Image Velocimetry (PIV) and Background Oriented Schlieren (BOS) experiments in the presence of density/refractive index gradients. This methodology enables the simulation of aero-thermodynamics experiments for experiment design, error, and uncertainty analysis. Images are generated by emanating light rays from the particles or dot pattern, and propagating them through the density gradient field and the optical elements, up to the camera sensor. The rendered images are realistic, and can replicate the features of a given experimental setup, like optical aberrations and perspective effects, which can be deliberately introduced for error analysis. We demonstrate this methodology by simulating a BOS experiment with a known density field obtained from direct numerical simulations (DNS) of homogeneous buoyancy driven turbulence, and comparing the light ray displacements from ray tracing to results from BOS theory. The light ray displacements show good agreement with the reference data. This methodology provides a framework for further development of simulation tools for use in experiment design and development of image analysis tools for PIV and BOS applications. Finally, an implementation of the proposed methodology in a Python-CUDAmore » program is made available as an open source software for researchers.« less

Authors:
ORCiD logo [1];  [1]; ORCiD logo [1]
+ Show Author Affiliations
  1. Purdue Univ., West Lafayette, IN (United States)
Publication Date:
Research Org.:
Purdue Univ., West Lafayette, IN (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Fusion Energy Sciences (FES)
OSTI Identifier:
1598798
Grant/Contract Number:  
SC0018156
Resource Type:
Accepted Manuscript
Journal Name:
Measurement Science and Technology
Additional Journal Information:
Journal Volume: 30; Journal Issue: 8; Journal ID: ISSN 0957-0233
Publisher:
IOP Publishing
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION

Citation Formats

Rajendran, Lalit K., Bane, Sally P. M., and Vlachos, Pavlos P. PIV/BOS synthetic image generation in variable density environments for error analysis and experiment design. United States: N. p., 2019. Web. doi:10.1088/1361-6501/ab1ca8.
Copy to clipboard
Rajendran, Lalit K., Bane, Sally P. M., & Vlachos, Pavlos P. PIV/BOS synthetic image generation in variable density environments for error analysis and experiment design. United States. https://doi.org/10.1088/1361-6501/ab1ca8
Copy to clipboard
Rajendran, Lalit K., Bane, Sally P. M., and Vlachos, Pavlos P. Thu . "PIV/BOS synthetic image generation in variable density environments for error analysis and experiment design". United States. https://doi.org/10.1088/1361-6501/ab1ca8. https://www.osti.gov/servlets/purl/1598798.
Copy to clipboard
@article{osti_1598798,
title = {PIV/BOS synthetic image generation in variable density environments for error analysis and experiment design},
author = {Rajendran, Lalit K. and Bane, Sally P. M. and Vlachos, Pavlos P.},
abstractNote = {In this work, we present an image generation methodology based on ray tracing that can be used to render realistic images of Particle Image Velocimetry (PIV) and Background Oriented Schlieren (BOS) experiments in the presence of density/refractive index gradients. This methodology enables the simulation of aero-thermodynamics experiments for experiment design, error, and uncertainty analysis. Images are generated by emanating light rays from the particles or dot pattern, and propagating them through the density gradient field and the optical elements, up to the camera sensor. The rendered images are realistic, and can replicate the features of a given experimental setup, like optical aberrations and perspective effects, which can be deliberately introduced for error analysis. We demonstrate this methodology by simulating a BOS experiment with a known density field obtained from direct numerical simulations (DNS) of homogeneous buoyancy driven turbulence, and comparing the light ray displacements from ray tracing to results from BOS theory. The light ray displacements show good agreement with the reference data. This methodology provides a framework for further development of simulation tools for use in experiment design and development of image analysis tools for PIV and BOS applications. Finally, an implementation of the proposed methodology in a Python-CUDA program is made available as an open source software for researchers.},
doi = {10.1088/1361-6501/ab1ca8},
journal = {Measurement Science and Technology},
number = 8,
volume = 30,
place = {United States},
year = {Thu Apr 25 00:00:00 EDT 2019},
month = {Thu Apr 25 00:00:00 EDT 2019}
}
Copy to clipboard
Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
https://doi.org/10.1088/1361-6501/ab1ca8
Copyright Statement
Other availability
Search WorldCat Search WorldCat to find libraries that may hold this journal
Citation Metrics:
Cited by: 7 works
Citation information provided by
Web of Science
Save / Share:
Export Metadata
Save to My Library
You must Sign In or Create an Account in order to save documents to your library.

Works referenced in this record:

Experimental investigation on interactions among fluid and rod-like particles in a turbulent pipe jet by means of particle image velocimetry
journal, December 2014

  • Capone, Alessandro; Romano, Giovanni Paolo; Soldati, Alfredo
  • Experiments in Fluids, Vol. 56, Issue 1
  • DOI: 10.1007/s00348-014-1876-4

Whole-field density measurements by 'synthetic schlieren'
journal, April 2000

  • Dalziel, S. B.; Hughes, G. O.; Sutherland, B. R.
  • Experiments in Fluids, Vol. 28, Issue 4
  • DOI: 10.1007/s003480050391

Evaluation of aero-optical distortion effects in PIV
journal, July 2005

Simultaneous synthetic schlieren and PIV measurements for internal solitary waves
journal, January 2007

  • Dalziel, Stuart B.; Carr, Magda; Sveen, J. Kristian
  • Measurement Science and Technology, Vol. 18, Issue 3
  • DOI: 10.1088/0957-0233/18/3/001

Time-resolved 3d capture of non-stationary gas flows
journal, December 2008

  • Atcheson, Bradley; Ihrke, Ivo; Heidrich, Wolfgang
  • ACM Transactions on Graphics, Vol. 27, Issue 5
  • DOI: 10.1145/1409060.1409085

Combining ART and FBP for improved fidelity of tomographic BOS
journal, July 2016

Absorption and Scattering of Light by Small Particles
book, April 1998

Tracing rays through graded-index media: a new method
journal, January 1982

  • Sharma, Anurag; Kumar, D. Vizia; Ghatak, A. K.
  • Applied Optics, Vol. 21, Issue 6
  • DOI: 10.1364/AO.21.000984

Numerical ray-tracing methods for gradient index media
journal, February 1985

  • Hewak, Daniel W.; Lit, John W. Y.
  • Canadian Journal of Physics, Vol. 63, Issue 2
  • DOI: 10.1139/p85-038

Gradient-index optics: a review
journal, January 1980

Quasi-bivariate variational mode decomposition as a tool of scale analysis in wall-bounded turbulence
journal, November 2017

Variable-density mixing in buoyancy-driven turbulence
journal, May 2008

Buoyancy-driven variable-density turbulence
journal, October 2007

A public turbulence database cluster and applications to study Lagrangian evolution of velocity increments in turbulence
journal, January 2008

Data exploration of turbulence simulations using a database cluster
conference, January 2007

  • Perlman, Eric; Burns, Randal; Li, Yi
  • Proceedings of the 2007 ACM/IEEE conference on Supercomputing - SC '07
  • DOI: 10.1145/1362622.1362654

Assessment and application of quantitative schlieren methods: Calibrated color schlieren and background oriented schlieren
journal, November 2003

A comparison of three quantitative schlieren techniques
journal, January 2012

Measurement sensitivity and resolution for background oriented schlieren during image recording
journal, June 2013

  • Gojani, Ardian B.; Kamishi, Burim; Obayashi, Shigeru
  • Journal of Visualization, Vol. 16, Issue 3
  • DOI: 10.1007/s12650-013-0170-5

Absorption and Scattering of Light by Small Particles
journal, January 1984

  • Brown, R. G. W.
  • Optica Acta: International Journal of Optics, Vol. 31, Issue 1
  • DOI: 10.1080/716099663

Gradient-Index Optics: A Review
conference, September 1980

  • Moore, Duncan T.
  • 1980 International Lens Design Conference, SPIE Proceedings
  • DOI: 10.1117/12.959103

Time-resolved 3d capture of non-stationary gas flows
conference, January 2008

  • Atcheson, Bradley; Ihrke, Ivo; Heidrich, Wolfgang
  • ACM SIGGRAPH Asia 2008 papers on - SIGGRAPH Asia '08
  • DOI: 10.1145/1457515.1409085

Measurement sensitivity and resolution for background oriented schlieren during image recording
text, January 2013

The fundamental mode of graded-index fibres: simple and accurate variational methods
journal, January 1982

  • Sharma, Anurag; Hosain, S. I.; Ghatak, A. K.
  • Optical and Quantum Electronics, Vol. 14, Issue 1
  • DOI: 10.1007/bf00620905

Homogeneous Buoyancy Driven Turbulence Data Set
dataset, January 2014

  • Livescu, Daniel; Canada, Curtis; Kanov, Kalin
  • Johns Hopkins Turbulence Databases
  • DOI: 10.7281/t1vx0dpc
    Sort by:
    [ × clear filter / sort ]

    Works referencing / citing this record:

    Uncertainty quantification in density estimation from background oriented schlieren (BOS) measurements
    journal, December 2019

    • Rajendran, Lalit K.; Zhang, Jiacheng; Bhattacharya, Sayantan
    • Measurement Science and Technology
    • DOI: 10.1088/1361-6501/ab60c8

    Uncertainty Quantification in density estimation from Background Oriented Schlieren (BOS) measurements
    text, January 2019

      Sort by:
      [ × clear filter / sort ]

      Similar Records in DOE PAGES and OSTI.GOV collections: