Jiří Fürst

Numerical simulation of transitional flows

The article deals with the numerical simulation of transitional flows. The aim is to evaluate two models for turbomachinery flows. The first model is a simple algebraic model developed by Straka and Příhoda and the second one is the three-equation

Numerical modeling of unsteady flow in steam turbine stage

k-k_L-\omega

Numerical simulation of circumferentially averaged flow in a turbine

model of Walters and Cokljat. Both models were tested for shear flows over the flat plate (ERCOFTAC T3A, T3B, and T3A

FVM-FEM Coupling and its Application to Turbomachinery

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Numerical simulation of flow through cascade in wind tunnel test section and stand-alone configurations

cases) for natural and bypass transition, over two airfoils in a tandem for the transition due to incoming wake and finally for the flow through a subsonic turbine blade cascade. Both models are compared to available experimental data.

Modeling of the Laminar/Turbulent Transition on a Heated Flat Plate Using the k-kL-w Model

We deal with the comparison of several finite volume TVD schemes and finite difference ENO schemes and we describe a second order finite volume WENO scheme which was developed for the case of general unstructured meshes. The proposed second order WENO reconstruction is much simpler than the original ENO scheme introduced in [Harten and Chakravarthy 1991]. Moreover, the proposed WENO method is very easily extendible for unstructured meshes in 3D. All above mentioned schemes are applied for the solution of 2D and 3D transonic flows in the turbines and channels and the numerical solution is compared to experimental results or to the results obtained by other authors.