The numerical investigation of outlet guide vane heat transfer

Visa enkel post
dc.contributor.authorMurali, Aravind
dc.contributor.departmentChalmers tekniska högskola / Institutionen för mekanik och maritima vetenskapersv
dc.contributor.departmentChalmers University of Technology / Department of Mechanics and Maritime Sciencesen
dc.contributor.examinerChernoray, Valery
dc.contributor.supervisorAbrahamsson, Hans
dc.date.accessioned2023-11-02T16:17:45Z
dc.date.available2023-11-02T16:17:45Z
dc.date.issued2023
dc.date.submitted2023
dc.description.abstractAero-engine components are subjected to high thermal loads and uneven temperature distribution during working conditions. The heat transfer investigation plays a significant role in the development and analysis of these structures. To increase the understanding of the heat transfer over a Turbine Rear Structure(TRS), tests are conducted at experimental facilities giving good insights and valuable inputs for possible design improvements. The primary objective of this thesis is to utilize the available heat transfer experimental data from the Chalmers LPT-OGV(Low Pressure Turbine-Outer Guide Vane) test rig to validate the CFD methodology for aero-thermal heat transfer analysis. In this work, the CFD heat transfer predictions are compared to the heat transfer test data obtained from the LPT-OGV test rig which is capable of replicating realistic engine conditions. The same operating conditions as in the test facility are used on the CFD model to reproduce numerical results. A comparative analysis of heat transfer coefficients (HTC) is conducted between the CFD predictions and the experimental data obtained from the LPT-OGV test rig, considering both on-design and off-design cases. The wake shedding effects on heat transfer for off-design conditions is investigated using a transient solver. Furthermore, a detailed analysis is conducted to examine the formation of film coefficient profiles over the hub region, which are then compared against the corresponding experimental data The findings revealed that, in general, transition of flow is observed over the suction side of OGV. CFD simulations tend to under predict the experimental HTC values. The SST transition model captures the transition effect, but predicts an earlier transition when compared with experimental data. The film coefficient profiles formed through CFD exhibited similarity to experimental profiles, although the experimental values displayed greater dispersion. These results contribute to the understanding and validation of CFD methodologies using experimental data, while also highlighting areas where further improvements are necessary
dc.identifier.coursecodeMMSX30
dc.identifier.urihttp://hdl.handle.net/20.500.12380/307313
dc.language.isoeng
dc.setspec.uppsokTechnology
dc.subjectCFD
dc.subjectTransition
dc.subjectHeat transfer
dc.subjectTurbine rear structure (TRS)
dc.subjectHeat transfer coefficients (HTC)
dc.titleThe numerical investigation of outlet guide vane heat transfer
dc.type.degreeExamensarbete för masterexamensv
dc.type.degreeMaster's Thesisen
dc.type.uppsokH
local.programmeApplied mechanics (MPAME), MSc
Ladda ner
Original bundle
Visar 1 - 1 av 1
Bild (thumbnail)
Namn:
The Numerical Investigation of Outlet Guide Vane Heat Transfer.pdf
Storlek:
11.22 MB
Format:
Adobe Portable Document Format
Beskrivning:
Ladda ner
License bundle
Visar 1 - 1 av 1
Bild (thumbnail)
Namn:
license.txt
Storlek:
2.35 KB
Format:
Item-specific license agreed upon to submission
Beskrivning:
Ladda ner
Samling
Examensarbeten för masterexamen