Skip to content
XLAB / Research gallery[ 06 studies ]

High-order methods in computational engineering.

An indexed selection of structural, aerodynamic and thermal studies. Each plate corresponds to a case available in the working Studio.

Ahmed-body wake resolved with Q-criterionRef: CFD-A24
Selected exhibit

Ahmed-body wake resolved with Q-criterion

Fig. 2.1 — Instantaneous coherent structures in the near and far wake, coloured by local velocity magnitude.

GPU CFD · D3Q19 iLES · 3D

Archive index

[ 02 / 06 ]

Research case plates

High-order flow studies.

Supplied reference figures retained with the cases they inform, spanning aerofoil wakes, retro-propulsion, turbulent vortex breakdown, automotive aerodynamics and co-axial flow.

Supersonic retro-propulsion jet interaction
R01.

Supersonic retro-propulsion jet interaction

PyFR · High-order flux reconstruction · DNS

Comparison of the unforced flow with thrust-coefficient cases CT = 0.25 and CT = 1.0, showing shock–jet interaction and the short-penetration stable mode.

Polynomial order and angle-of-attack matrix
R02.

Polynomial order and angle-of-attack matrix

Nektar++ · P2 / P4 / P6 · AOA 1°–7°

A twelve-case comparison of resolved aerofoil wakes as polynomial order and incidence increase.

Sixth-order aerofoil wake study
R03.

Sixth-order aerofoil wake study

Nektar++ · P6 · 0.3 million iterations

High-order wake structures at 1°, 3°, 5° and 7° angle of attack after 0.3 million iteration steps.

Iteration-count convergence comparison
R04.

Iteration-count convergence comparison

Nektar++ · P6 · 0.3M versus 1M iterations

The same incidence sweep compared at two integration horizons to expose the development and persistence of coherent wake structures.

Taylor–Green vortex breakdown
R05.

Taylor–Green vortex breakdown

Q-criterion · Two viewpoints · Coherent vortex structures

Paired three-dimensional views of the late-stage vortex tangle retained for the Taylor–Green enstrophy-decay case.

Ahmed-body wake comparison
R06.

Ahmed-body wake comparison

Q-criterion · Velocity colouring · Paired viewpoints

Two views of the resolved roof, C-pillar and near-wake vortex structures used to assess three-dimensional wake development.

Ahmed-body isosurface sequence
R07.

Ahmed-body isosurface sequence

Three Q-levels · Separation topology · Far wake

A three-level comparison showing how the selected isosurface threshold changes the retained roof shear layer and trailing vortex pair.

Co-axial nozzle flow comparison
R08.

Co-axial nozzle flow comparison

Velocity field · Mixing layer · Recirculation structure

Side-by-side scalar-field views of the core and sheath streams through the tapered nozzle and their downstream recirculation zones.

Working environment

Run these studies in two or three dimensions.

Open the Studio