Optimization of a U-bend for minimal pressure loss in internal cooling channels—Part I: Numerical method

T Verstraete, F Coletti, J Bulle… - Journal of …, 2013 - asmedigitalcollection.asme.org
This two-part paper addresses the design of a U-bend for serpentine internal cooling
channels optimized for minimal pressure loss. The total pressure loss for the flow in a U …

The effect of turning vanes on pressure loss and heat transfer of a ribbed rectangular two-pass internal cooling channel

M Schüler, F Zehnder, B Weigand… - 2011 - asmedigitalcollection.asme.org
Gas turbine blades are usually cooled by using ribbed serpentine internal cooling passages,
which are fed by extracted compressor air. The individual straight ducts are connected by …

Flow and heat transfer measurements in swirl tubes with one and multiple tangential inlet jets for internal gas turbine blade cooling

C Biegger, Y Rao, B Weigand - International Journal of Heat and Fluid Flow, 2018 - Elsevier
In this paper, we present a detailed experimental and numerical study of the flow
phenomena and the heat transfer in swirl tubes with one and multiple tangential inlet jets …

Numerical investigation of flow and heat transfer in a swirl tube

C Biegger, C Sotgiu, B Weigand - International Journal of Thermal …, 2015 - Elsevier
A swirl tube is a promising cooling method for heavily thermally loaded parts like turbine
blades due to the additional circumferential velocity and therefore improved turbulent mixing …

URANS of turbulent flow and heat transfer in divergent swirl tubes using the k-ω SST turbulence model with curvature correction

Y You, F Seibold, S Wang, B Weigand… - International Journal of …, 2020 - Elsevier
In the current work, the turbulent flow and heat transfer in divergent swirl cooling tubes is
studied numerically by using the open source CFD code OpenFOAM. The k-ω SST …

Numerical simulation of turbine blade cooling via jet impingement

AR Al Ali, I Janajreh - Energy Procedia, 2015 - Elsevier
Various industrial applications use jet impingement against surface to provide an effective
mode of heat transfer. Its application includes, but not limited to, heat treatment, thermal …

Conjugate heat transfer of a rib-roughened internal turbine blade cooling channel using large eddy simulation

S Scholl, T Verstraete, F Duchaine, L Gicquel - International Journal of Heat …, 2016 - Elsevier
This contribution focuses on the conjugate heat transfer computation of a rib-roughened
internal turbine blade cooling channel with a blockage ratio of 0.3 and a Reynolds number …

Numerical predictions of the effect of rotation on fluid flow and heat transfer in an engine-similar two-pass internal cooling channel with smooth and ribbed walls

M Schüler, HM Dreher, SO Neumann, B Weigand… - 2012 - asmedigitalcollection.asme.org
In the present study, a two-pass internal cooling channel with engine-similar cross-sections
was investigated numerically. The channel featured a trapezoidal inlet pass, a sharp 180 …

Flow and heat transfer measurements in a swirl chamber with different outlet geometries

C Biegger, B Weigand - Experiments in Fluids, 2015 - Springer
In technical applications, an efficient cooling is necessary for high thermal load components
such as turbine blades. One potential and promising technique is a swirling tube flow in …

Optimization of a U-bend for minimal pressure loss in internal cooling channels—part II: experimental validation

F Coletti, T Verstraete, J Bulle… - Journal of …, 2013 - asmedigitalcollection.asme.org
This two-part paper addresses the design of a U-bend for serpentine internal cooling
channels optimized for minimal pressure loss. The total pressure loss for the flow in a U …