Compressibility

Turbulence

Engineering

Trailing edge

Boundary value problem

Aerodynamics

Cascade

Chemical engineering

Physics

Navier–Stokes equations

Mathematics

Flow (mathematics)

Compressible flow

Transonic

Mathematical analysis

Mechanics

Journal of Engineering for Gas Turbines and Power

The multidimensional, ensemble-averaged, compressible, time-dependent Navier-Stokes equations have been used to study the turbulent flow field in two and three-dimensional turbine cascades. The viscous regions of the flow were resolved and no-slip boundary conditions were utilized on solid surfaces. The calculations were performed in a constructive ‘O’-type grid which allows representation of the blade rounded trailing edge. Converged solutions were obtained in relatively few time steps (∼ 80–150) and comparisons for both surface pressure and heat transfer showed good agreement with data. The three-dimensional turbine cascade calculation showed many of the expected flow-field features.

Calculations of Two and Three-Dimensional Transonic Cascade Flow Fields Using the Navier-Stokes Equations