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Keywords: conjugate heat transfer
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Proceedings Papers

Proc. ASME. GT2022, Volume 6A: Heat Transfer — Combustors; Film Cooling, V06AT12A033, June 13–17, 2022
Paper No: GT2022-82769
...@mail.xjtu.edu.cn) ABSTRACT Double wall cooling is regarded as one of the advanced cooling technologies of modern gas turbines, but its internal cooling is always confronted with crossflow effect. To reveal the conjugate heat transfer characteristics under different crossflow configurations, this paper utilized...
Proceedings Papers

Proc. ASME. GT2022, Volume 6A: Heat Transfer — Combustors; Film Cooling, V06AT12A026, June 13–17, 2022
Paper No: GT2022-82372
... to analyze the overall cooling effectiveness more accurately, we have to categorize all the influencing parameters. This paper builds a one-dimensional conjugate heat transfer model with four parameters which are adiabatic film cooling effectiveness, heat transfer coefficient ratio between blade external...
Proceedings Papers

Proc. ASME. GT2022, Volume 6A: Heat Transfer — Combustors; Film Cooling, V06AT12A036, June 13–17, 2022
Paper No: GT2022-82796
... the fluid-diversion effect of TT. Based on the engine-matched hot-side Biot-numbers, overall cooling effectiveness measurements were carried out under typical blowing ratios (BRs) from 0.5 to 2.0, through capturing wall temperatures by an infrared thermal sensor and thermocouples. Conjugate heat transfer...
Proceedings Papers

Proc. ASME. GT2022, Volume 3A: Combustion, Fuels, and Emissions, V03AT04A007, June 13–17, 2022
Paper No: GT2022-78581
... Abstract This work presents an open-source autonomous CFD meta-modeling environment (OpenACME) for small-scale combustor design optimization in a deterministic and continuous design space. OpenACME couples several object-oriented programming open-source codes for conjugate-heat transfer, steady...
Proceedings Papers

Proc. ASME. GT2022, Volume 3A: Combustion, Fuels, and Emissions, V03AT04A008, June 13–17, 2022
Paper No: GT2022-78586
... RANS and “frozen” flamelet progress variable (FFPV) combustion model. There are fifteen design variables. There are three meta-simulations. The meta-simulations report Pareto Frontier from which optimum designs can be selected based on thermodynamic cycle requirements. Conjugate heat transfer provides...
Proceedings Papers

Proc. ASME. GT2022, Volume 6B: Heat Transfer — General Interest/Additive Manufacturing Impacts on Heat Transfer; Internal Air Systems; Internal Cooling, V06BT13A013, June 13–17, 2022
Paper No: GT2022-82538
... heat exchanger. The overall pressure drop has been also reduced by 65%. fluid topology optimization conjugate heat transfer Proceedings of ASME Turbo Expo 2022 Turbomachinery Technical Conference and Exposition GT2022 June 13-17, 2022, Rotterdam, The Netherlands GT2022-82538 THERMAL...
Proceedings Papers

Proc. ASME. GT2022, Volume 6B: Heat Transfer — General Interest/Additive Manufacturing Impacts on Heat Transfer; Internal Air Systems; Internal Cooling, V06BT15A029, June 13–17, 2022
Paper No: GT2022-83438
... of a turbulated three-pass serpentine which fed a trailing-edge pin fin bank with pressure-side cutback trailing-edge slot extraction. A conjugate heat transfer analysis, with practical supercritical CO2 boundary conditions, was performed on the design with Rene 80 as the metal. The conjugate heat transfer model...
Proceedings Papers

Proc. ASME. GT2021, Volume 3B: Combustion, Fuels, and Emissions, V03BT04A006, June 7–11, 2021
Paper No: GT2021-59443
..., conjugate heat transfer, thermal radiation and soot formation. The complex cooling system of the V2500 combustor makes the evaluation of the wall temperatures extremely challenging. To achieve results with the resources available, the authors replaced the densely packed pins inside the cooling channel...
Proceedings Papers

Proc. ASME. GT2021, Volume 2C: Turbomachinery — Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, V02CT34A009, June 7–11, 2021
Paper No: GT2021-59012
... temperature near the cold metal wall boundary condition of a 1D implicit unsteady heat conduction solver. HTCcold HTC at the cold metal wall Keywords: Unsteady Heat Conduction, Dual Time BC Boundary condition Stepping, Decoupled Approaches, Conjugate Heat Transfer, Combustor Liner dTf Fluid time step size dTs...
Proceedings Papers

Proc. ASME. GT2021, Volume 5B: Heat Transfer — General Interest; Internal Air Systems; Internal Cooling, V05BT14A015, June 7–11, 2021
Paper No: GT2021-59930
... Proceedings of ASME Turbo Expo 2021 Turbomachinery Technical Conference and Exposition GT2021 June 7-11, 2021, Virtual, Online GT2021-59930 MODELLING CONJUGATE HEAT TRANSFER WITHIN A GAS TURBINE SECONDARY AIR SYSTEM USING 1D AND 2-3D SOLID MODELS IN THERMO-FLUID SYSTEM SIMULATION David Hunt...
Proceedings Papers

Proc. ASME. GT2021, Volume 5B: Heat Transfer — General Interest; Internal Air Systems; Internal Cooling, V05BT15A001, June 7–11, 2021
Paper No: GT2021-58386
... Laboratory of Mechanical Manufacturing Systems Engineering Xi'an Jiaotong University Xi an, China ABSTRACT H channel height, mm In this work, a conjugate heat transfer model was L channel length, mm Nu Nusselt number established to numerically investigate the conjugate P rib pitch, mm thermal performance...
Proceedings Papers

Proc. ASME. GT2020, Volume 7A: Heat Transfer, V07AT15A018, September 21–25, 2020
Paper No: GT2020-15051
... and numerically. The authors proposed that the novel concentric-cylinder shaped roughened geometry exhibited highest fin-effectiveness. Present study reports the effect of three micro-roughness shapes, viz. cylindrical, cubic and concentric cylinder. Conjugate heat transfer study was performed, and the heat...
Proceedings Papers

Proc. ASME. GT2020, Volume 7B: Heat Transfer, V07BT12A008, September 21–25, 2020
Paper No: GT2020-14275
...Conjugate Heat Transfer Characteristics of Double Wall Cooling on a Film Plate with Gradient Thickness Juan He, Qinghua Deng*, Weilun Zhou, Wei He, Tieyu Gao, Zhenping Feng Shaanxi Engineering Laboratory of Turbomachinery and Power Equipment, Institute of Turbomachinery, School of Energy and Power...
Proceedings Papers

Proc. ASME. GT2020, Volume 7C: Heat Transfer, V07CT13A003, September 21–25, 2020
Paper No: GT2020-14416
...OPTIMIZATION DESIGN OF TURBINE BLADE COOLING STRUCTURE BASED ON CONJUGATE HEAT TRANSFER Mingrui Wang1, Huiren Zhu1, Yang Xu1 1Northwestern Polytechnical University, Xi an, China ABSTRACT Conjugate heat transfer (CHT) has been widely used in the analysis on flow field and heat transfer of turbine...
Proceedings Papers

Proc. ASME. GT2020, Volume 7C: Heat Transfer, V07CT14A006, September 21–25, 2020
Paper No: GT2020-14202
...MODELLING CONJUGATE HEAT TRANSFER WITHIN A GAS TURBINE SECONDARY AIR SYSTEM USING THERMO-FLUID SYSTEM SIMULATION David Hunt Mechanical Analysis Mentor, a Siemens business Towcester, United Kingdom Email: david_hunt@mentor.com Youming Yuan Mechanical Analysis Mentor, a Siemens business Towcester...
Proceedings Papers

Proc. ASME. GT2020, Volume 7B: Heat Transfer, V07BT12A061, September 21–25, 2020
Paper No: GT2020-15768
..., which is able to meet the requirement of CFD solver. With the generated meshes, conjugate heat transfer performance in the turbine vane with different cooling arrangements is investigated and also validated with the existing experimental data. meshing film cooling interface treatment conjugate...
Proceedings Papers

Proc. ASME. GT2020, Volume 7B: Heat Transfer, V07BT12A074, September 21–25, 2020
Paper No: GT2020-16241
...Abstract Abstract A conjugate heat transfer study is carried out to obtain temperature and thermal stress field of a film-cooled superalloy with multi-layer thermal barrier coatings (TBCs). The aim is to understand the effects of the blowing ratio and ceramic top coating (TC) thickness...
Proceedings Papers

Proc. ASME. GT2020, Volume 2C: Turbomachinery, V02CT35A033, September 21–25, 2020
Paper No: GT2020-15269
... fluid and the blade are analyzed using a Conjugate Heat Transfer (CHT) approach with Star- CCM+. The validation of the computational approach has been performed exploiting the experimental data available for the NASA C3X test case. The TG20 rotating blade of the first turbine row has been analyzed...
Proceedings Papers

Proc. ASME. GT2020, Volume 10A: Structures and Dynamics, V10AT25A010, September 21–25, 2020
Paper No: GT2020-14332
... and avoiding too high temperatures that could varnish, even flash and burn, the engine oil. The improvements in the energy transport and heat flow modeling of a SFRB system will produce significant savings in TC performance. Keywords: turbocharger, floating ring bearings, conjugate heat transfer Copyright ©...
Proceedings Papers

Proc. ASME. GT2013, Volume 3B: Heat Transfer, V03BT11A003, June 3–7, 2013
Paper No: GT2013-94185
... is performed experimentally in a linear cascade with exhaust gas from a kerosene combustor. Detailed information at different operating points is taken from the experiments for which conjugate heat transfer (CHT) simulations with ANSYS CFX are carried out. By comparing the experimental and numerical results...