Recent LES suggested that the turbulence fluctuation in the wall-normal direction v plays an important role in the evolution of transition. This motivates the use of v 2 − f model for turbomachinery flows, in which different types of transition co-exist. An 'ad hoc' Reynolds-number-dependent term is added to C ε1 in the ε-equation in order to reduce the… (More)
This version of the Guidelines has one change from the previous version issued on January 15, 2003. Due to an editorial error, the description of Attachment Therapy on page 57 was mistitled in the previous version. This title and all references to it in the text have now been changed.
The k;";v 2 model has been investigated to quantify its predictive performance on two high-lift conngurations: 2D ow o ver a single-element aerofoil, involving closed-type separationn 3D ow o ver a prolate spheroid, involving open-type separation. A `code-friendly' modiication has been proposed which enhances the numerical stability , in particular, for… (More)
We present the first algorithm for solving the equation of radiative transfer (ERT) in the frequency domain (FD) on three-dimensional block-structured Cartesian grids (BSG). This algorithm allows for accurate modeling of light propagation in media of arbitrary shape with air-tissue refractive index mismatch at the boundary at increased speed compared to… (More)
In this paper we investigate an anisotropic version of the NS-α model using a lid-driven cavity flow at a Reynolds number of 10,000. The subgrid model is developed from the Eulerian-averaged anisotropic equations [Holm, Physica D, v.133, pp 215-269, 1999], and the simplifications made to keep the model tractable are discussed. It was found that when α 2 was… (More)
The increased performance of close series stacked tube axial fans due to the introduction of a diffuser element between the primary and secondary fan is