Results 91 to 100 of about 22,707 (244)
The CF6 Jet Engine Performance Improvement - Low Pressure Turbine Active Clearance Control [PDF]
A low pressure turbine (LPT) active clearance control (ACC) cooling system was developed to reduce the fuel consumption of current CF6-50 turbofan engines for wide bodied commercial aircraft. The program performance improvement goal of 0.3% delta sfc was
Beck, B. D., Fasching, W. A.
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Effects of a nonadiabatic wall on supersonic shock/boundary-layer interactions [PDF]
, 2018 Direct numerical simulations are employed to investigate a shock wave impinging on a turbulent boundary layer at free-stream Mach number M=2.28 with different wall thermal conditions, including adiabatic, cooled, and heated, for a wide range of ...
Bernardini, M. +2 more
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Experimental Investigation of Burning Liquids in Reduced Oxygen
Fire and Materials, Volume 50, Issue 4, Page 448-459, June 2026.ABSTRACT The effects of oxygen concentration on combustion of gases have been investigated on fundamental levels in several studies. However, the same type of fundamental studies has not been made for liquid or solid fuels due to complex relationships between flame structure and changing mass loss rates (MLR).
Joakim Åström +3 more
wiley +1 more source
Analytical and experimental spur gear tooth temperature as affected by operating variables [PDF]
A gear tooth temperature analysis was performed using a finite element method combined with a calculated heat input, calculated oil jet impingement depth, and estimated heat transfer coefficients.
Akin, L. S., Townsend, D. P.
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Submerged jet impingement cooling using nanostructured plates
International Journal of Heat and Mass Transfer, 2013 Abstract In this paper, the results of a series of heat transfer experiments conducted on a compact electronics cooling device based on single and two phase jet impingement technique are reported. Deionized and degassed water is propelled into four microchannels.
Şeşen, Muhsincan +5 more
openaire +3 more sources
Experimental Factors and Techniques for Pool Boiling Heat Transfer Enhancement: A Critical Review
Heat Transfer, Volume 55, Issue 4, Page 2201-2232, June 2026.ABSTRACT This review presents a comprehensive assessment of active strategies for enhancing pool boiling heat transfer, with a focus on techniques that do not rely solely on the boiling surface modification. It examines a broad range of methodologies including fluid additives, external fields, mechanical interventions, and thermal‐geometric tuning that
José E. Pereira +2 more
wiley +1 more source
Comparison of temperature data from an engine investigation for film-cooled and non-film-cooled, panwise-finned vanes incorporating impingement cooling [PDF]
The experimental temperature characteristics of two spanwise-finned, impingement-cooled vanes, one with film cooling and one without film cooling, were investigated in a modified J-75 research turbojet engine.
Gauntner, D. J.
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Arc Heat Flow and Magmatic Heat Budgets
Reviews of Geophysics, Volume 64, Issue 2, June 2026.Abstract We evaluate hydrothermal heat loss from 11 volcanic‐arc segments (∼6,000 km of arc length, ∼10% of the global total), motivated by the observation that much magmatic heat ultimately crosses the land surface as heated aqueous fluid. Heat loss takes place by volcanic eruption, geothermal heat conduction to the surface, fumarolic (vapor ...
S. E. Ingebritsen +7 more
wiley +1 more source
Case Studies in Thermal EngineeringThe impact of premixed swirl-stabilized flame on the cooling performance of an effusion-cooled combustor liner perforated by cylindrical and fan-shaped holes is investigated under varying blowing ratios.
Xiang Lu +3 more
doaj +1 more source
Analytical fuel property effects, small combustors, phase 1 [PDF]
The effects of nonstandard aviation fuels on a typical small gas turbine combustor was analyzed. The T700/CT7 engine family was chosen as being representative of the class of aircraft power plants desired.
Cohen, J. D.
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