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Dominique Heitz

Head senior reserach scientist, group ACTA.
13
Documents
Affiliations actuelles
  • 1002501
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Présentation

I am a senior research scientist at INRAE, Rennes, France, where I have been the ACTA group head since 2013. I received the PhD degree in 1999 in fluid mechanics from the Univ. of Poitiers, France. I work on experimental, numerical, and theoretical studies of turbulent flows, with applications in food, agriculture, and environment. My research is focused on turbulent shear flows by tackling crucial topics of measurements techniques, analysis and modeling of environmental and industrial flows in presence of non-canonical influences. This concerns the study of mixing layer/wake interaction, wake flow with spanwise non uniformity, mixing layer under the influence of thermal gradients, and mixing layer developing between non-uniform flows. Currently my research is mostly focused on developing and analyzing efficient models and methods for 2D and 3D spatiotemporal vector fields reconstruction from image sequences of turbulent flows. Key challenges are the development of observation and regularization models based on the physics of fluids, and the combination of image sequences with numerical simulation of dynamical laws.

Publications

ali-rahimi-khojasteh
Image document

Lagrangian diffusion properties of the wake behind a cylinder using time-resolved particle tracking velocimetry

Ali Rahimi Khojasteh , Dominique Heitz , Lionel Fiabane
12th International Symposium on Turbulence and Shear Flow Phenomena (TSFP12), Jul 2022, Osaka (Online), Japan. 4 p
Communication dans un congrès hal-03864606v1
Image document

Diffusion properties of time-resolved trajectories in the wake behind a cylinder

Ali Rahimi Khojasteh , Dominique Heitz
20th International Symposium on Application of Laser and Imaging Techniques to Fluid Mechanics, Jul 2022, Lisbon, Portugal
Communication dans un congrès hal-03864735v1
Image document

Lagrangian structure-function using stationarised fluid trajectories in the wake of a smooth cylinder

Ali Rahimi Khojasteh , Dominique Heitz , Sylvain Laizet
14th European Fluid Mechanics Conference (EFMC14), European Mechanics Society, Sep 2022, Athens, Greece. 1 p
Communication dans un congrès hal-03861633v1
Image document

Generic energy function to predict particle positions in 4D-PTV

Ali Rahimi Khojasteh , Dominique Heitz
20th International Symposium on Application of Laser and Imaging Techniques to Fluid Mechanics, Jul 2022, Lisbon, Portugal. 7 p
Communication dans un congrès hal-03864727v1
Image document

Particle position prediction based on Lagrangian coherency for flow over a cylinder in 4D-PTV

Ali Rahimi Khojasteh , Dominique Heitz , Yin Yang
14th International Symposium on Particle Image Velocimetry – ISPIV 2021, ILLINOIS TECH, Aug 2021, Chicago, France. 9 p., ⟨10.18409/ispiv.v1i1.211⟩
Communication dans un congrès hal-04114133v1
Image document

Adjustable interogation window for 2D PIV estimation based on local Lagrangian coherency

Ali Rahimi Khojasteh , Dominique Heitz , Yin Yang
14th International Symposium on Particle Image Velocimetry – ISPIV 2021, Aug 2021, Chicago, United States. 7 p., ⟨10.18409/ispiv.v1i1.136⟩
Communication dans un congrès hal-04114087v1
Image document

Adjustable interrogation window for 2D PIV estimation based on local Lagrangian coherency

Ali Rahimi Khojasteh , Dominique Heitz , Yin Yang
14th International Symposium on Particle Image Velocimetry – ISPIV 2021, Aug 2021, Chicago, United States. 7 p
Communication dans un congrès hal-03316124v2
Image document

Particle position prediction based on Lagrangian coherency for flow over a cylinder in 4D-PTV

Ali Rahimi Khojasteh , Dominique Heitz , Yin Yang , Lionel Fiabane
14th International Symposium on Particle Image Velocimetry – ISPIV 2021, Aug 2021, Chicago, United States. 9 p
Communication dans un congrès hal-03316123v2
Image document

Lagrangian Coherent Track Initialisation

Ali Rahimi Khojasteh , Dominique Heitz , Yin Yang , Sylvain Laizet
3rd Workshop and 1st Challenge on Data Assimilation & CFD Processing for PIV and Lagrangian Particle Tracking, Nov 2020, Online-Workshop, France
Communication dans un congrès hal-03022074v1
Image document

3D indoor air purifier flow reconstruction using PIV snapshot optimisation

Ali Rahimi Khojasteh , Philippe Georgeault , Dominique Heitz , Lionel Fiabane , Vincent Raimbaud
19th International Symposium on Flow Visualization (ISFV-19), Jun 2020, Shanghai, China
Communication dans un congrès hal-03346053v1