Zobrazeno 71 - 80
of 697
pro vyhledávání: '"B, Lakshminarayana"'
Autor:
B. Lakshminarayana, Y.-H. Ho
Publikováno v:
International Journal of Computational Fluid Dynamics. 10:73-89
A steady/unsteady, three-dimensional Navier- Stokes solver that utilizes a semi-implicit, pressure-based solution procedure is developed to simulate the three-dimensional, incompressible flow through a single stage compressor. The present numerical s
Autor:
B. Lakshminarayana, M. Koiro
Publikováno v:
Journal of Turbomachinery. 120:285-297
An existing three-dimensional Navier–Stokes flow solver with an explicit Runge–Kutta algorithm and a low-Reynolds-number k–ε turbulence model has been modified in order to simulate turbomachinery flows in a more efficient manner. The solver ha
Unsteady Total Pressure Field Downstream of an Embedded Stator in a Multistage Axial Flow Compressor
Publikováno v:
Journal of Fluids Engineering. 119:985-994
The results from measurements of the unsteady total pressure field downstream of an embedded stage of a three stage axial flow compressor are presented in this paper. The measurements include area traverses of a high response kulite total pressure pr
Autor:
J. Luo, B. Lakshminarayana
Publikováno v:
Journal of Turbomachinery. 119:794-801
The boundary layer development and convective heat transfer on transonic turbine nozzle vanes are investigated using a compressible Navier-Stokes code with three low-Reynolds-number {kappa}-{epsilon} models. The mean-flow and turbulence transport equ
Publikováno v:
Journal of Turbomachinery. 119:624-633
The objective of this investigation is to understand the steady and the unsteady flow field at the exit of an automotive torque converter turbine and inside the stator with a view toward improving its performance. The measurements were conducted in a
Publikováno v:
Journal of Turbomachinery. 119:634-645
The stator flow field of an automotive torque converter is highly unsteady due to potential and viscous interactions with upstream and downstream rotors. The objective of this investigation is to understand the influence of potential and viscous inte
Autor:
M. A. Zaccaria, B. Lakshminarayana
Publikováno v:
Journal of Turbomachinery. 119:214-224
The two-dimensional steady and unsteady flow field at midspan in a turbine rotor has been investigated experimentally using an LDV with an emphasis on the interaction of the nozzle wake with the rotor flow field. The velocity measurements are decompo
Publikováno v:
Journal of Propulsion and Power. 13:169-177
A complete area traverse downstream of the second stator of the Pennsylvania State University Multistage Compressor Facility has been carried out at the peak ef ciency and peak pressure ratio operating conditions using a miniature (1.07-mm-diam)
Autor:
B. Lakshminarayana, Jiang Luo
Publikováno v:
AIAA Journal. 35:91-98
The effects of strong convex and concave curvature on turbulent duct flows are investigated. A compressible Navier-Stokes code incorporating Reynolds stress models has been developed using a four-stage Runge-Kutta scheme. Numerical computations have
Autor:
B. Lakshminarayana, Jiang Luo
Publikováno v:
AIAA Journal. 35:1273-1279
We deal with numerical analysis for the effects of surface curvature, particularly the concave curvature; on turbulent duct flows and boundary layers. A compressible Navier-Stokes code incorporating Reynolds stress models has been developed using a f