Cerfacs Enter the world of high performance ...

Simulation of combustion with LBM

 , , ,

Required Education : Master
Start date : 1 March 2022
Mission duration : 6 months
Deadline for applications : 1 February 2022
Salary : 650 euros / month

Background, Context:

Today, numerical combustion modelling mostly relies on numerical codes solving the Navier-Stokes equations with finite volumes or finite differences methods on massively parallel computers. With such method, and using the Large Eddy Simulation (LES) approach, the AVBP code developed at CERFACS has allowed to successfully predict turbulent combustion in academic and industrial configurations. An alternative is the Lattice Boltzmann Method (LBM) which intends to solve a discrete variant of the Boltzmann equation. Even though LBM has demonstrated excellent performances in terms of both accuracy and efficiency for isothermal aerodynamic and aeroacoustic applications, very few results are reported for thermal and/or reactive cases. However recent works have given promising results [1-3] on the application of LBM to thermal and reactive flows using the ProLB code, co-developed at M2P2. The objective of this internship is then to evaluate the potential of LBM for reactive flows in comparison with Navier-Stokes solvers.

Work plan:

A series of combustion test cases of increasing complexity will be performed with both the AVBP code, developed at Cerfacs and ProLB, co-developed at M2P2, and results willbe compared in terms of accuracy and computational time. The test cases are typically:

  • a 1D premixed flame propagation
  • a 2D propagation flame
  • a 3D industrial burner (Volvo and/or Preccinsta)

The intern will follow a progressive methodology:

  • Bibliography on LBM and combustion
  • Learning AVBP
  • Learning ProLB
  • Setting-up each test case with both codes, simulation and analysis

The intern will be primarily based in Cerfacs, Toulouse, but will interact regularly with the M2P2 team in Marseille (via videoconference, and occasional on-site visits).

References:

[1] M. Tayyab, S. Zhao, Y. Feng, and P. Boivin, “Hybrid regularized lattice-boltzmann modelling of premixed and non-premixed combustion processes,” Combustion and Flame, vol. 211, pp. 173–184, 2020.

[2] P. Boivin, M. Tayyab, and S. Zhao, “Benchmarking a lattice-boltzmann solver for reactive flows: Is the method worth the effort for combustion?,” Physics of Fluids, vol. 33, p. 017703, 2021.

[3] M. Tayyab, S. Zhao, and P. Boivin, “Lattice-boltzmann modelling of a turbulent bluff-body stabilized flame,” Physics of Fluids, vol. 33, no. 3, p. 031701, 2021.

Required skills:          

Scientific computing, reactive flow physics, numerical methods

Contacts:

benedicte.cuenot@cerfacs.fr

guillaume.daviller@cerfacs.fr

jean-francois.boussuge@cerfacs.fr

pierre.boivin@univ-amu.fr