DOI: https://doi.org/10.26089/NumMet.v19r328

Lagrangian coherent vortex structures and their numerical visualization

Authors

  • K.N. Volkov
  • V.N. Emelyanov
  • I.E. Kapranov
  • I.V. Teterina

Keywords:

computational fluid dynamics
scientific visualization
vortex
Lagrangian turbulence
chaotic advection
Poincar’e section
Lyapunov exponent

Abstract

Some issues related to the implementation and physico-mathematical support of computational experiments on the study of fluid and gas flows containing Lagrangian coherent vortex structures are considered. Methods and tools designed to visualize the vortex flows arising in various practical applications are discussed. Examples of visual representation of solutions to gas dynamics problems computed with Lagrangian approaches to the description of fluid and gas flows are given. In addition to the traditional approaches to the visualization of vortex flows based on the construction of contour curves of various flow quantities, the phase trajectories of Lagrangian particles, the Poincar’e sections, and the local Lyapunov exponent method are applied.

New computational technologies

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Published

2018-12-26

Issue

Vol. 19 (2018): Issue 3.

Section

Section 1. Numerical methods and applications

Author Biographies

K.N. Volkov

D.F. Ustinov Baltic State Technical University «Voenmekh»
• Professor

V.N. Emelyanov

D.F. Ustinov Baltic State Technical University «Voenmekh»
• Professor

I.E. Kapranov

D.F. Ustinov Baltic State Technical University «Voenmekh»
• Researcher

I.V. Teterina

D.F. Ustinov Baltic State Technical University «Voenmekh»
• Associate Professor

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