... This paper discusses a numerical study using Realizable k-ε turbulent model of underexpanded sonic jets developed by rectangular nozzles of aspect ratio 2 with trailing-edge modifications at nozzle pressure ratios of 4 and 5. All results reported were obtained from steady-state simulations. Trailing-edge...

...Roy V. Paul; Kriparaj K.G.; Tide P.S. Purpose The purpose of this study is to investigate the aerodynamic characteristics of subsonic jet emanating from corrugated lobed nozzle. Design/methodology/approach Numerical simulations of subsonic turbulent jets from corrugated lobed nozzles using...

... diameter and constant separation between nozzles. OpenFOAM® is used for simulating the jet flow. Reynolds-averaged Navier-Stokes (RANS) equations are solved iteratively with a first-order closure for turbulence. Pitot-static tube with differential pressure transducer is used for mean velocity measurements...

.... The computation results for different turbulence models applied are discussed. Time dependent characteristics of contra‐rotating propeller are presented as well as conclusions regarding propeller‐wing interaction. Research limitations/implications Propeller was designed for a fixed wing aeroplane...

... solid walls, the no slip condition is applied. Re‐Normalization Group k‐ε model is used for turbulence modeling. The pressure‐velocity coupling is calculated by the SIMPLEC algorithm. Second‐order upwind discretization is considered for the convection terms. Finite volume method...

... been investigated by CFD. At the airfoil solid walls no slip condition (zero velocity) was applied. Re‐normalization group k‐ε model was used for turbulence modeling. The pressure‐velocity coupling was calculated by the SIMPLEC algorithm. Second‐order upwind discretization was considered...

...R. Aghaei tog; A.M. Tousi; A. Tourani Purpose The purpose of this paper is to show the superior turbulence method in CFD analysis of radial turbo machines and to introduce the best way to choose turbulence parameters whenever FLUENT user applies this software as a complementary design tool...

... © Emerald Group Publishing Limited 2006 --> Turbulence A380 wake turbulence Keywords: Turbulence The Joint Aviation Authorities (JAA) the European organization responsible for air operation regulations in Europe is also fully involved in the ICAO study group...

...M.R. Ahmed; S.D. Sharma Purpose Turbulent mixing of two co‐axial jets having a low annular to core area ratio is enhanced by employing a chute mixer, directing part of the annular stream at 10° towards the core region. Aims to present results from measurements of time‐averaged and fluctuating...

...Mattias Sillén The compressible Navier‐Stokes equations are solved numerically for turbulent transonic aerospace applications on parallel computers. An Explicit Algebraic Reynolds Stress Model (EARSM) models the turbulence. Expressing the EARSM as an extension of an eddy‐viscosity model makes...