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Relevant bibliographies by topics / Effusion Cooling Modelling

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Journal articles
Dissertations / Theses
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Academic literature on the topic 'Effusion Cooling Modelling'

Author: Grafiati

Published: 10 March 2023

Last updated: 31 July 2025

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Journal articles on the topic "Effusion Cooling Modelling"

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Mazzei, Lorenzo, Antonio Andreini, and Bruno Facchini. "Assessment of modelling strategies for film cooling." International Journal of Numerical Methods for Heat & Fluid Flow 27, no. 5 (2017): 1118–27. http://dx.doi.org/10.1108/hff-03-2016-0086.

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Purpose Effusion cooling represents one the most innovative techniques for the thermal management of aero-engine combustors liners. The huge amount of micro-perforations implies a significant computational cost if cooling holes are included in computational fluid dynamics (CFD) simulations; therefore, many efforts are reported in literature to develop lower-order approaches aiming at limiting the number of mesh elements. This paper aims to report a numerical investigation for validating two approaches for modelling film cooling, distinguished according to the way coolant is injected (i.e. thro

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Xia, Hao, Xiaosheng Chen, and Christopher D. Ellis. "Modelling and Simulation of Effusion Cooling—A Review of Recent Progress." Energies 17, no. 17 (2024): 4480. http://dx.doi.org/10.3390/en17174480.

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Effusion cooling is often regarded as one of the critical techniques to protect solid surfaces from exposure to extremely hot environments, such as inside a combustion chamber where temperature can well exceed the metal melting point. Designing such efficient cooling features relies on thorough understanding of the underlying flow physics for the given engineering scenarios, where physical testing may not be feasible or even possible. Inevitably, under these circumstances, modelling and numerical simulation become the primary predictive tools. This review aims to give a broad coverage of the n

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Murray, Alexander, Peter Ireland, Tsun Wong, Shaun Tang, and Anton Rawlinson. "High Resolution Experimental and Computational Methods for Modelling Multiple Row Effusion Cooling Performance." International Journal of Turbomachinery, Propulsion and Power 3, no. 1 (2018): 4. http://dx.doi.org/10.3390/ijtpp3010004.

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MENDEZ, S., and F. NICOUD. "Large-eddy simulation of a bi-periodic turbulent flow with effusion." Journal of Fluid Mechanics 598 (February 25, 2008): 27–65. http://dx.doi.org/10.1017/s0022112007009664.

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Large-eddy simulations of a generic turbulent flow with discrete effusion are reported. The computational domain is periodic in both streamwise and spanwise directions and contains both the injection and the suction sides. The blowing ratio is close to 1.2 while the Reynolds number in the aperture is of order 2600. The numerical results for this fully developed bi-periodic turbulent flow with effusion are compared to available experimental data from a large-scale spatially evolving isothermal configuration. It is shown that many features are shared by the two flow configurations. The main diff

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Rogic, Nikola, Giuseppe Bilotta, Gaetana Ganci, et al. "The Impact of Dynamic Emissivity–Temperature Trends on Spaceborne Data: Applications to the 2001 Mount Etna Eruption." Remote Sensing 14, no. 7 (2022): 1641. http://dx.doi.org/10.3390/rs14071641.

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Spaceborne detection and measurements of high-temperature thermal anomalies enable monitoring and forecasts of lava flow propagation. The accuracy of such thermal estimates relies on the knowledge of input parameters, such as emissivity, which notably affects computation of temperature, radiant heat flux, and subsequent analyses (e.g., effusion rate and lava flow distance to run) that rely on the accuracy of observations. To address the deficit of field and laboratory-based emissivity data for inverse and forward modelling, we measured the emissivity of ‘a’a lava samples from the 2001 Mt. Etna

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Zoëga, Tómas, Trude Storelvmo, and Kirstin Krüger. "Modelled surface climate response to effusive Icelandic volcanic eruptions: sensitivity to season and size." Atmospheric Chemistry and Physics 25, no. 5 (2025): 2989–3010. https://doi.org/10.5194/acp-25-2989-2025.

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Abstract. Effusive, long-lasting volcanic eruptions impact climate through the emission of gases and the subsequent production of aerosols. Previous studies, both modelling and observational, have made efforts to quantify these impacts and untangle them from natural variability. However, due to the scarcity of large and well-observed effusive volcanic eruptions, our understanding remains patchy. Here, we use an Earth system model to systematically investigate the climate response to high-latitude, effusive volcanic eruptions, similar to the 2014–2015 Holuhraun eruption in Iceland, as a functio

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M. Dragoni. "Physical modelling of lava flows." Annals of Geophysics 40, no. 5 (1997). http://dx.doi.org/10.4401/ag-3856.

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Lava flows are not only a fascinating scientific problem, involving many branches of continuum mechanics and thermodynamics, but are natural events having a strong social impact. A reliable evaluation of volcanic hazard connected with lava flows depends on the availability of physical models allowing us to predict the evolution of these phenomena. In this regard, the rheological properties of lavas are of major importance in controlling the dynamics of lava flows. Lava is a multi-phase and chemically heterogeneous system. This entails a characteristic, non-Newtonian behaviour of lava flows, wh

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Dissertations / Theses on the topic "Effusion Cooling Modelling"

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Oguntade, Habeeb Idowu. "Modelling of gas turbine film and effusion cooling." Thesis, University of Leeds, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.581946.

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This thesis presents CFD predictions of gas turbine film and effusion cooling. The dearth of detailed experimental adiabatic effusion cooling data led to the validation of the computational procedures against the experimental adiabatic cooling effectiveness data for a single row of inclined round film cooling holes. This showed that the overall best agreement of the CFD predictions with experimental data was for the realizable k-e turbulence model with enhanced wall function. This was also shown to give good predictions of experimental results for trench outlet film cooling. This film cooling

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Paccati, Simone. "Development of advanced numerical tools for the prediction of wall temperature and heat fluxes for aeroengine combustors." Doctoral thesis, 2021. http://hdl.handle.net/2158/1238641.

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In the thesis, a multiphysics loosely-coupled tool, called U-THERM3D, is assessed as a detailed investigation tool for high-fidelity prediction of combustion and near-wall processes in a LES CHT simulation framework, allowing a deep understanding of heat transfer modes influence with an affordable computational cost. The numerical analysis is carried out on a laboratory-scale combustor representative of a Rich-Quench-Lean concept, emphasizing the effect of radiative and wall heat losses on the highly sooting flame and the improvements in the wall temperature prediction with respect to a steady

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Book chapters on the topic "Effusion Cooling Modelling"

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Jansson, L. S., and L. Davidson. "Numerical Study of Effusion Cooling in a Double-Row Discrete-Hole Configuration Using a Low-Re Reynolds Stress Transport Model." In Engineering Turbulence Modelling and Experiments. Elsevier, 1996. http://dx.doi.org/10.1016/b978-0-444-82463-9.50076-9.

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Conference papers on the topic "Effusion Cooling Modelling"

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van de Noort, Michael, Alexander V. Murray, and Peter T. Ireland. "Low Order Heat & Mass Flow Network Modelling for Quasi-Transpiration Cooling Systems." In ASME Turbo Expo 2022: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2022. http://dx.doi.org/10.1115/gt2022-81780.

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Abstract Quasi-transpiration cooling schemes such as Double-Wall Effusion Cooling allow the Nozzle Guide Vanes of High Pressure Turbines in modern aeroengines to experience high heat loads whilst maintaining acceptable temperatures. The combination of impingement, pin-fin and effusion cooling in such schemes produces a high convective cooling efficiency, but this is accompanied by large pressure losses that increase vulnerability to coolant migration toward low pressure regions. This can have severely detrimental effects on cooling performance as effusion holes around the Leading Edge can be s

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Crouzy, Gaétan, Fabien Desarnaud, Emmanuel Laroche, and Pierre Millan. "Numerical modelling of a realistic annular effusion cooling system." In AIAA Propulsion and Energy 2019 Forum. American Institute of Aeronautics and Astronautics, 2019. http://dx.doi.org/10.2514/6.2019-4259.

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Liu, Xiaoheng, Donghai Jin, and Xingmin Gui. "Throughflow Method for a Combustion Chamber With Effusion Cooling Modelling." In ASME Turbo Expo 2018: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/gt2018-76195.

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The most progressive liner cooling technology for modern combustion chambers is represented by effusion cooling (or full-coverage film cooling), which is based on the use of several inclined small diameter cylindrical holes. However, as to simulation of the gas turbine combustion chamber, meshing of these discrete holes needs too much computer resource and demanding calculation time. The homogeneous boundary condition was attempted to apply in the throughflow method for the simulation of the full-scale combustion chamber. The verification of this uniform condition was performed through the mod

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Oguntade, Habeeb Idowu, Gordon E. Andrews, Alan Burns, Derek Ingham, and Mohammed Pourkashanian. "Predictions of Effusion Cooling With Conjugate Heat Transfer." In ASME 2011 Turbo Expo: Turbine Technical Conference and Exposition. ASMEDC, 2011. http://dx.doi.org/10.1115/gt2011-45417.

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This work involves CFD conjugate heat transfer modelling of the geometrical design influence on effusion cooling. Experimental data was modelled for the overall effusion film cooling effectiveness using Nimonic 75 walls with imbedded thermocouples. The Fluent CFD code was used to investigate the experimental configuration for a 10×10 square array of holes with a 90° injection angle. In the computational predictions, 10000ppm of methane tracer gas was added to the coolant and the concentration at the wall allowed the adiabatic cooling effectiveness of the effusion film cooling to be predicted s

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Ammour, Dalila, and Gary J. Page. "Modelling Impingement-Effusion Flow Inside Double-Walled Combustor Tile." In ASME Turbo Expo 2017: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/gt2017-64913.

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The prediction of temperature and heat transfer throughout the solid material of a gas-turbine combustor has driven interest in cooling technology which uses impingement/effusion (IE) cooling tiles on double-skinned combustor liners. The design of the IE tile system is simple but the aerodynamics are complex. The complexity of flow curvature, combined impingement and effusion cooling and heat transfer, poses a challenge to standard RANS CFD modelling. The IE combustor tile is numerically investigated using both URANS model with the SST-SAS model and Large Eddy Simulation (LES) in the Rolls-Roy

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Paccati, S., L. Mazzei, A. Andreini, and B. Facchini. "Reduced-Order Models for Effusion Modelling in Gas Turbine Combustors." In ASME Turbo Expo 2021: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2021. http://dx.doi.org/10.1115/gt2021-59384.

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Abstract Effusion cooling represents the state-of-the-art for liner cooling technology in modern combustion chambers, combining a more uniform film protection of the wall and a significant heat sink effect by forced convection through a huge number of small holes. From a numerical point of view, a high computational cost is required in a conjugate CFD analysis of an entire combustor for a proper discretization of effusion holes in order to obtain accurate results in terms of liner temperature and effectiveness distributions. Consequently, simplified CFD approaches to model the various phenomen

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Murray, Alexander Vesale, Peter Thomas Ireland, Tsun Holt Wong, Shaun Wei Tang, and Anthony John Rawlinson. "High Resolution Experimental and Computational Methods for Modelling Multiple Row Effusion Cooling Performance." In European Conference on Turbomachinery Fluid Dynamics and hermodynamics. European Turbomachinery Society, 2017. http://dx.doi.org/10.29008/etc2017-130.

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Bohn, Dieter, and Robert Krewinkel. "Conjugate Simulation of the Effects of Oxide Formation in Effusion Cooling Holes on Cooling Effectiveness." In ASME Turbo Expo 2009: Power for Land, Sea, and Air. ASMEDC, 2009. http://dx.doi.org/10.1115/gt2009-59081.

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Within Collaborative Research Center 561 “Thermally Highly Loaded, Porous and Cooled Multi-Layer Systems for Combined Cycle Power Plants” at RWTH Aachen University an effusion-cooled multi-layer plate configuration with seven staggered effusion cooling holes is investigated numerically by application of a 3-D in-house fluid flow and heat transfer solver, CHTflow. The effusion-cooling is realized by finest drilled holes with a diameter of 0.2 mm that are shaped in the region of the thermal barrier coating. Oxidation studies within SFB 561 have shown that a corrosion layer of several oxides with

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Mazzei, L., A. Picchi, A. Andreini, B. Facchini, and I. Vitale. "Unsteady CFD Investigation of Effusion Cooling Process in a Lean Burn Aero-Engine Combustor." In ASME Turbo Expo 2016: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/gt2016-56603.

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The use of lean burning flames stabilized by highly swirling flows represents the most effective technology to limit NOx emissions in modern aeroengine combustors. In these devices up to 70% of compressed air is admitted in the combustor through the injection system, which is usually designed to give strong swirling components to air flow. Complex fluidynamics is observed with large flow recirculations due to vortex breakdown and precessing vortex core, that may result in a not trivial interaction with liner cooling flows close to combustor walls. This interaction and its effects on the local

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Mazzei, L., A. Andreini, B. Facchini, and L. Bellocci. "A 3D Coupled Approach for the Thermal Design of Aero-Engine Combustor Liners." In ASME Turbo Expo 2016: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/gt2016-56605.

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The adoption of lean burn combustion to limit NOx emissions of modern aero-engines imposes a drastic reduction of air dedicated to cooling combustor dome and liners. In the latest years many aero-engine manufacturers are hence implementing effusion cooling, which provides uniform protection on the hot side of the liner and significant heat removal within the perforation. With an industrial perspective, the development of such components is usually carried out with different strategies depending on the level of accuracy required in the design phase involved (i.e preliminary or detailed). In the

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