Recurrence CFD (rCFD)
Many industrial (and environmental) processes are governed by the underlying flow phenomena. Conventional CFD simulations of such flows are typically extremely expensive. In case the flow under consideration exhibits recurring flow features, we propose to switch towards a more efficient statistical description of flow. With recurrence CFD we can accelerate flow simulations by four orders of magnitude. In many cases this speed-up enables real-time simulations of flows at high resolution.
In the picture two snap-shots of species concentration (in this case we consider hydrogen concentration in steel) are given. While a conventional CFD simulation (top) took 26 hours of computational wall-clock time, a rCFD simulation (bottom) took only 1.6 seconds although the results are obtained at the same (high spatial and temporal) resolution. Actually, in this case rCFD runs more than an order of magnitude faster than real-time.