General forms of turbulence models are outlined along with their defects and palliatives for
these in relation to turbomachinery. The turbulence modelling hierarchy available in …

This is an attempt to clarify and size up the many levels possible for the numerical prediction
of a turbulent flow, the target being a complete airplane, turbine, or car. Not all the author's …

The flow is calculated with laminar separation (LS) at Reynolds numbers 50,000 and
140,000, and with turbulent separation (TS) at140, 000 and 3× 10 6. The TS cases are …

Turbulent heat transfer over rough surfaces is crucial in natural and industrial processes, yet
it has received less attention than that of momentum transfer. Recently, research in this field …

Modelling transport and mixing by turbulence in complex flows is one of the greatest
challenges for CFD. This highly readable volume introduces the reader to a level of …

Direct numerical simulations (DNS) of laminar separation bubbles on a NACA-0012 airfoil at
Rec= 5× 104 and incidence 5° are presented. Initially volume forcing is introduced in order …

Transition arising from a separated region of flow is quite common and plays an important
role in engineering. It is difficult to predict using conventional models and the transition …

This paper presents a comprehensive analysis of the momentum and energy transfer in
compressible turbulent boundary layers based on integral identities. By considering data …

The laminar separation bubble on an SD7003 aerofoil at a Reynolds number Re= 66000
was investigated to determine the dominant frequencies of the transition process and the …

Through numerical simulations, this paper examines the nature of instability mechanisms
leading to transition in separation bubbles. The results of two direct numerical simulations …