Numerical analysis of heat transfer characteristics in ribbed two-passed channel with varied cross section

M Li, L Luo, S Yang, H Yan, W Du, X Zhou - Physics of Fluids, 2024 - pubs.aip.org
The mid-chord region of turbine blades typically employs internal cooling channels to
enhance heat transfer. However, traditional internal cooling channels are mostly designed in …

Effects of bidirectional rib arrangements on turbulent flow structure and heat transfer characteristics of a two-pass channel for turbine blade internal cooling

FB Majmader, MJ Hasan - International Communications in Heat and Mass …, 2024 - Elsevier
The thermal efficiency of gas turbine engines depends heavily on the cooling performance
of the internal channels of turbine blades. In the present study, the effects of bidirectionally …

Effects of turning vane on flow control and heat transfer in ribbed two-pass channel with varied rib patterns

Z Cao, L Luo, X Yang, H Yan, W Du - International Journal of Thermal …, 2025 - Elsevier
Faced with the escalating cooling requirements of turbine blades, two-pass channels with
ribs on the internal surfaces have been extensively employed to enhance internal wall heat …

Optimization study on fluid flow and heat transfer in a rectangular channel with cross-scale ribs for turbine blade internal cooling

YB Wang, KC Yan, CX Wang, SY Wang, BX Zhang… - Physics of …, 2024 - pubs.aip.org
In turbine engines, ribbed channels are a common internal cooling structure that can
significantly enhance heat transfer but often lead to a noticeable reduction in flow …

The effects of ribs and tip wall distance on heat transfer for a varying aspect ratio two-pass ribbed internal cooling channel

SC Jenkins, F Zehnder… - Journal of …, 2013 - asmedigitalcollection.asme.org
Internal cooling channels with differing aspect ratios are typically found in gas turbine blades
due to the varying thickness of the blade from the leading to trailing edge. These serpentine …

The effect of ribs and tip wall distance on heat transfer for a varying aspect ratio two-pass ribbed internal cooling channel

SC Jenkins, F Zehnder… - … Expo: Power for …, 2008 - asmedigitalcollection.asme.org
Internal cooling channels with differing aspect ratios are typically found in gas turbine blades
due to the varying thickness of the blade from the leading to trailing edge. These serpentine …

Numerical investigations of pressure loss and heat transfer in a 180 bend of a ribbed two-pass internal cooling channel with engine-similar cross-sections

M Schüler, SO Neumann… - Proceedings of the …, 2010 - journals.sagepub.com
Numerical investigations of a two-pass internal cooling channel with engine representative
cross-sections related to turbine blade cooling were conducted. The channel consisted of a …

Heat transfer and pressure loss in rectangular one-side-ribbed channels with different aspect ratios

S Kunstmann, J Wolfersdorf… - Journal of …, 2013 - asmedigitalcollection.asme.org
An investigation was conducted to assess the thermal performance of W-shaped, 2W-
shaped and 4W-shaped ribs in a rectangular channel. The aspect ratios (W/H) were 2: 1, 4 …

Numerical Simulation of Two Pass Gas Turbine Blade Internal Cooling Channels With 90 Degree Varying Height Ribs

S Kumar, RS Amano - … Engineering Congress and …, 2012 - asmedigitalcollection.asme.org
Improvement in thermal efficiency of gas turbine can be obtained by operating it at high inlet
temperatures. In addition to improving the performance, the cons of high inlet temperature is …

Numerical investigation of the flows and heat transfer characteristics of internal cooling channels with separated ribs in gas turbine blades

VH Nguyen, TD Vu, CT Dinh, SG Park - Physics of Fluids, 2024 - pubs.aip.org
Gas turbine engines play a crucial role in numerous industrial domains, including power
generation, aviation, and marine propulsion. One of the major challenges in designing gas …