Zobrazeno 1 - 10
of 143
pro vyhledávání: '"Phil Ligrani"'
Publikováno v:
Fluids, Vol 8, Iss 10, p 258 (2023)
In past investigations of elastic instabilities and elastic turbulence, almost no attention has been devoted to the effects and influences of inertial phenomena. Within the present investigation, Nusselt number data are provided to illustrate the rel
Externí odkaz:
https://doaj.org/article/37e7307d97664a09987a92d702e0f36a
Publikováno v:
Fluids, Vol 7, Iss 1, p 33 (2022)
We considered effective diffusion, characterized by magnitudes of effective diffusion coefficients, in order to quantify mass transport due to the onset and development of elastic instabilities. Effective diffusion coefficient magnitudes were determi
Externí odkaz:
https://doaj.org/article/a855b5ec85e242da9ff24ac98dc63390
Publikováno v:
Propulsion and Power Research, Vol 6, Iss 1, Pp 1-14 (2017)
A survey of research on aerodynamic loss investigations for turbine components of gas turbine engines is presented. Experimental and numerically predicted results are presented from investigations undertaken over the past 65 plus years. Of particular
Externí odkaz:
https://doaj.org/article/858e24ecfd464f8b8dc9a11ae3a159fd
Autor:
Phil Ligrani
Publikováno v:
International Journal of Rotating Machinery, Vol 2013 (2013)
To provide an overview of the current state of the art of heat transfer augmentation schemes employed for internal cooling of turbine blades and components, results from an extensive literature review are presented with data from internal cooling cha
Externí odkaz:
https://doaj.org/article/3c35db48f48548fc9721996b5a3d1efa
Autor:
Phil Ligrani
Publikováno v:
International Journal of Rotating Machinery, Vol 2012 (2012)
The influences of a variety of different physical phenomena are described as they affect the aerodynamic performance of turbine airfoils in compressible, high-speed flows with either subsonic or transonic Mach number distributions. The presented expe
Externí odkaz:
https://doaj.org/article/db2be6bc99584fadadf39e11a65d72f5
Publikováno v:
International Journal of Heat and Mass Transfer. 127:585-597
Considered is the addition of special surface roughness patterns to impingement target surfaces to improve the effectiveness and surface heat transfer augmentation levels of impingement cooling. Three different impingement hole shapes are employed wi
Publikováno v:
International Journal of Heat and Mass Transfer. 120:895-908
Steady-state flow structure and surface heat transfer characteristics are numerically predicted for a turbine vane passage, which is contoured using the ice formation method, using ANSYS® Fluent version 12.1. Utilized are an SST turbulence closure m
Autor:
Sneha Reddy Vanga, Ram Srinivasan, Zhong Ren, Nathan Rogers, Federico Liberatore, Rajeshriben Patel, Phil Ligrani, Keith Hollingsworth, Yin-Hsiang Ho
Publikováno v:
International Journal of Thermal Sciences. 124:36-49
The present study provides new heat transfer data for both the surfaces of the full coverage effusion cooling plate within a double wall cooling test facility. To produce the cooling stream, a cold-side cross-flow supply for the effusion hole array i
Publikováno v:
Journal of Thermophysics and Heat Transfer. 32:51-60
The influences of elastic turbulence on convective heat transfer, within a C-shaped passage of a viscous disk pump, are experimentally determined using viscoelastic fluids and Boger fluids, which a...
Publikováno v:
International Journal of Thermal Sciences. 116:91-102
The present investigation considers determination of entropy production from the flow field around a turbine guide vane, and the numerical simulation of this flow field by means of Computational Fluid Dynamics (CFD). These CFD simulations are based u