Downstream influence of swept slot injection in hypersonic turbulent flow [PDF]
Results of an experimental and numerical investigation of tangential swept slot injection into a thick turbulent boundary layer at Mach 6 are presented. Film cooling effectiveness, skin friction, and flow structure downstream of the swept slot injection ...
Bushnell, D. B. +2 more
core +1 more source
Vortex-generating coolant-flow-passage design for increased film-cooling effectiveness and surface coverage [PDF]
The thermal film-cooling footprints observed by infrared imagery for three coolant-passage configurations embedded in adiabatic-test plates are discussed.
Papell, S. S.
core +1 more source
A First Look at the Performance of Nano-Grooved Heat Pipes
, 2018 Passive thermal spreaders utilizing liquid/vapor phase-change mechanism such as heat pipes, have been widely used in the macro-scale thermal management of electronic devices for many years. Micro-fabrication techniques enabled the fabrication micro-scale
Akkus, Yigit +3 more
core +1 more source
Assessment of the NASA code FDNS2D for computation of film cooling effectiveness [PDF]
The role of computational fluid dynamics (CFD) programs is usually one of analysis. Generally they are not used in the design phase of a project. There was an effort to integrate CFD codes into the design phase of combustion devices, specifically, in the
Woodbury, Keith A.
core +1 more source
A Transient Method Using Liquid Crystal for Film Cooling Over a Convex surface
International Journal of Rotating Machinery, 2001 In order to explore the effect of blowing ratio on film cooling over a convex surface, the present study adopts the transient liquid crystal thermography for the film cooling measurement on a straight circular hole configuration.
Ping-Hei Chen +2 more
doaj +1 more source
Microtextured Surfaces for Turbine Blade Impingement Cooling [PDF]
Gas turbine engine technology is constantly challenged to operate at higher combustor outlet temperatures. In a modern gas turbine engine, these temperatures can exceed the blade and disk material limits by 600 F or more, necessitating both internal and ...
Fryer, Jack
core +1 more source
Case Studies in Thermal EngineeringAdvanced aero-engines widely employ lean-burn combustors to comply with strict NOx emission regulations. Lean-burn combustor exit condition is characterized with swirl and hot streak (HS).
Shenghui Zhang +5 more
doaj +1 more source
Three-dimensional turbulent-mixing-length modeling for discrete-hole coolant injection into a crossflow [PDF]
Three dimensional mixing length models of a flow field immediately downstream of coolant injection through a discrete circular hole at a 30 deg angle into a crossflow were derived from the measurements of turbulence intensity.
Papell, S. S., Wang, C. R.
core +1 more source
Polypyrrole Coated PET Fabrics for Thermal Applications [PDF]
, 2010 Polypyrrole can be chemically synthesized on PET fabrics, giving rise to textiles with high electric conductivity. These textiles are suitable for several applications from antistatic films to electromagnetic interference shielding devices.
Avloni, J. +3 more
core
Computational Study of Film Cooling Effectiveness for a Comparison of Cylindrical, Square and Triangular Holes of Equal Cross-Sectional Area [PDF]
Mehran University Research Journal of Engineering and Technology, 2010 Film cooling effectiveness is studied computationally for a comparison of circular, square and two types of equilateral triangular holes with an inclination of 30o with streamwise direction.
Fayyaz Hassan Asghar +1 more
doaj