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The University of Southampton
Engineering
Phone:
(023) 8059 3384
Email:
R.Deiterding@soton.ac.uk

Dr Ralf Deiterding Dipl.-Math, Dr.rer., nat

Associate Professor in Fluid Dynamics

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Dr Ralf Deiterding is a Associate Professor in Fluid Dynamics within Engineering and Physical Sciences at the University of Southampton.

My primary interest is the development of innovative, but reliable, solution algorithms for computational fluid dynamics. I am particularly interested in massively parallel Cartesian automatically adapted methods for hypersonic and weakly compressible flows with fluid-structure interaction and/or multi-physics coupling.

Research interests

  • Computational fluid dynamics
  • Wind turbine and vehicle aerodynamics
  • Fluid-structure interactions
  • Supersonic combustion/detonation modelling
  • Adaptive mesh refinement
  • High-performance computing

PhD students

  • Chay Atkins
  • Han Peng
  • Keertan Maskey

Postdocs:

  • Dr Mikaël P. Grondeau
  • Dr. Pushpender Sharma
  • Dr. Raynold Tan

MPhil/PhD research

PhD thesis: Parallel adaptive simulation of multi-dimensional detonation structures, funded by German Science Foundation (DFG)

MSc thesis: Numerical coupling of the 3D flow-code FIRE to the 1D hydraulic-code AMESIM for the design of diesel-injection systems, funded by Robert Bosch GmbH, Stuttgart

Research projects

Transpiration Cooling Systems for Jet Engine Turbines and Hypersonic Flight

 

Research group

Aerodynamics and Flight Mechanics

Research project(s)

Generalised lattice Boltzmann method

High Fidelity Simulation of Atmospheric Dispersion

The research focuses on high-fidelity dispersion modelling within atmospheric flows in cases such as urban environments. The project is in partnership with Dstl.

Aerodynamics and Aeroacoustics LBM Modelling of Turbulent Flow over and past Permeable Rough Surfaces

Miniature rotating detonation engine

Magneto-hydrodynamic solvers in AMROC for space-weather forecasting

The overarching objective of this multidisciplinary project was the development of a three-dimensional parallel dynamically adaptive numerical method that permits fast and reliable space weather magneto-hydrodynamic simulations.

Automated Mesh Generation for Hypersonic Flow Simulations of Ablated Bodies

Vehicles travelling at hypersonic speeds experience significant heat transfer from the surrounding flow. This can require the use of thermal protection systems that ablate at high temperatures to reduce the heating experienced by the vehicle. Ablation leads to shape change, which can cause bottlenecks in computational simulations as a new computational mesh is required. This project is investigating the use of strand/Cartesian AMR meshing procedures to automatically create high-quality grids around ablating bodies.

Studies of compressible flow over rough surfaces using Direct Numerical Simulation

Simulation of the supersonic combustion in rotating detonation engines

The RDE, which employs pressure-gain combustion, is able to operate with limited or no mechanical compression. The detonation wave rapidly propagates in the combustor resulting in a nearly constant-volume combustion process that produces high-pressure burnt products and provides the thrust. In order to reduce the computational cost, a 3-D annulus RDE can be unwrapped into a 2-D plane. The 2-D Navier-Stokes equations with detailed chemical kinetics are solved based on a Cartesian mesh in AMROC -Clawpack. A second-order accurate MUSCL-Hancock scheme with Minmod limiter is used for the reconstruction. A hybrid Roe-HLL Riemann solver is utilized to evaluate the inviscid fluxes. For multi-dimensional problems, the hybrid Roe-HLL solver is combined with the wave propagation method. The premixed hydrogen/air RDE and ethylene/oxygen RDE are tested with continuous and discrete injection, respectively.

Simulation of the unsteady shock-induced combustion on a mapped mesh

Transpiration Cooling in Hypersonic Flows

This project is part of the EPSRC program grant Transpiration Cooling Systems for Jet Engine Turbines and Hypersonic Flight (EP/P000878/1).

Director of Research Aeronautics and Astronautics

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SESA6074 Hypersonics and High Temperature Gas Dynamics, module lead
SESA3029 Aerothermodynamics, lecturer

Dr Ralf Deiterding
Southampton Boldrewood Innovation Campus
University of Southampton
Building 176
Burgess Road
Southampton
SO16 7QF

Room Number NNN: 176/5059


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