Results 21 to 30 of about 72,535 (264)
Investigations of the leakage characteristic and the sealing effectiveness on turbine bite rim seals
Journal of Thermal Science and Technology, 2018 In order to meet the needs of designing for high performance secondary air system in the turbine, a new turbine bite engineering rim seal of type-A and the related test rig were designed and set up.
Weilin DONG, Suofang WANG, Pengfei LI
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Numerical Investigation of Unsteady Interaction between Rim Seal Flow and Upstream Vane
Xibei Gongye Daxue Xuebao, 2019 To investigate unsteady interaction mechanism between the rim seal flow in turbine stator-rotor cavity and main flow, detailed unsteady numerical simulations of the flow field and unsteady characteristic of the vane were conducted under different rim ...
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Aerodynamics and Sealing Performance of the Downstream Hub Rim Seal in a High-Pressure Turbine Stage
International Journal of Turbomachinery, Propulsion and Power, 2023 The purpose of the paper is to characterize the aerodynamic behavior of a rotor-downstream hub cavity rim seal in a high-pressure turbine (HPT) stage.
Filippo Merli +4 more
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International Journal of Turbomachinery, Propulsion and Power, 2023 The efficiency assessment of a high-pressure turbine (HPT) stage is complicated by the presence of upstream and downstream purge flows. In fact, the efficiency calculation is often based on mass flow-averaged values of total temperature at the stage ...
Filippo Merli +3 more
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Inertial waves in turbine rim seal flows
Physical Review Fluids, 2020 Rotating fluids are well-known to be susceptible to waves. This has received much attention from the geophysics, oceanographic and atmospheric research communities. Inertial waves, which are driven by restoring forces, for example the Coriolis force, have been detected in the research fields mentioned above. This paper investigates inertial waves in
Feng Gao, John W. Chew, Olaf Marxen
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Archaeometry, EarlyView., 2022 Abstract Organic residue analysis was conducted on various vessels from burials at Tel Yehud, Israel. The analyses led to new reliable evidence for the presence of opioid alkaloids and their decomposition products. This research revitalizes a decades‐old discussion on the presence and function of the opium trade across a cultural region of utmost ...
Vanessa Linares +5 more
wiley +1 more source
Flow characteristics in turbine wheel space cavity
Energy Reports, 2021 Unsteady flow structures unrelated to rotating frequency in the turbine wheel space cavity has been observed and reported in a number of recent rim sealing investigations.
Lei Xie +4 more
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Large Eddy Simulation of Externally Induced Ingress about an Axial Seal by Stator Vanes
Energies, 2023 Turbine inlet temperatures in advanced gas turbines could be as high as 2000 °C. To prevent ingress of this hot gas into the wheelspace between the stator and rotor disks, whose metals can only handle temperatures up to 850 °C, rim seals and sealing ...
Sabina Nketia +3 more
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Report of Investigations No. 131 Origin and Diagenesis of Cap Rock, Gyp Hill and Oakwood Salt Domes, Texas [PDF]
, 1983 UT ...
Dutton, Shirley P., Kreitler, Charles W.
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Wall-Modelled Large Eddy Simulations of Axial Turbine Rim Sealing
Volume 7C: Heat Transfer, 2020 Abstract This paper presents WMLES simulations of a chute type turbine rim seal. Configurations with an axisymmetric annulus flow and with nozzle guide vanes fitted (but without rotor blades) are considered. The passive scalar concentration solution and WMLES are validated against available data in the literature for uniform convection ...
Palermo, Donato M. +5 more
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