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Managed Pressure Drilling Operations in Deepwater and Total Circulation Losses Environments
SPE Annual Technical Conference and Exhibition, 2016Abstract Managed Pressure Drilling (MPD) has been widely considered as the best alternative for many drilling-related problems such as stuck pipe, lost circulation, excessive mud cost and narrow operating windows in deepwater environments.
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Effect of Turbine Blade tip shape on the Total Pressure Loss of a Turbine Cascade
Journal of Fluid Machinery, 2009Leakage flow through turbine blade tip gap causes strong leakage vortex near the blade suction side and induces large aerodynamic losses. In this study, the conventional plane tip and various squealer tip blades were tested in a linear cascade in order to measure the effect of the tip shape on the total pressure loss.
Ki-Seon Lee +5 more
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Volume 7: Turbomachinery, Parts A, B, and C, 2010
In order to prevent hot-gas ingestion into the rotating turbo machine’s inside, rim seals are used in the cavities located between stator- and rotor-disc. The sealing flow ejected through the rim seal interacts with the boundary layer of the main gas flow, thus playing a significant role in the formation of secondary flows which are a major contributor
P. Schuler +3 more
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In order to prevent hot-gas ingestion into the rotating turbo machine’s inside, rim seals are used in the cavities located between stator- and rotor-disc. The sealing flow ejected through the rim seal interacts with the boundary layer of the main gas flow, thus playing a significant role in the formation of secondary flows which are a major contributor
P. Schuler +3 more
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Study of Total Pressure Losses at the Engine Face of a Submerged Inlet with an Ingested Vortex
2017An experimental study of the effect of vortex ingestion into an S-duct diffuser on flow conditions at the engine face is presented. A simultaneous ingestion of a boundary layer is also considered. In order to form a boundary layer of well-defined thickness ahead of the intake the diffuser is arranged on a flat plate.
Stefan Koch, Markus Rütten, Martin Rein
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Estimation of uncertainty in the total pressure loss coefficient of a turbine nozzle
199314th Canadian Congress of Applied Mechanics, May 30 - June 4, 1993, Queen's University, Kingston, Ontario ...
Carscallen, W. E., Radmard, R.
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Journal of Engineering Physics and Thermophysics, 2007
The total-pressure loss in gas turbines is evaluated. Reynolds-averaged Navier-Stokes equations are used for numerical calculations. The Spalart-Allmaras model, the k-e model, and the two-layer model and their different modifications allowing for the rotation of the flow and the curvature of streamlines are used to close these equations.
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The total-pressure loss in gas turbines is evaluated. Reynolds-averaged Navier-Stokes equations are used for numerical calculations. The Spalart-Allmaras model, the k-e model, and the two-layer model and their different modifications allowing for the rotation of the flow and the curvature of streamlines are used to close these equations.
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Global optimality and uniqueness in the problem of minimizing loss of total pressure
Doklady Physics, 2003V. N. Malozemov, A. V. Omel'chenko
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Prediction of nonlinear pumping pressure loss of concrete induced by rheological property changes
Cement and Concrete Research, 2023Qiang Yuan, Lilin Lao, Fumin Li
exaly
Total-pressure loss in supersonic parallel mixing
31st Aerospace Sciences Meeting, 1993openaire +1 more source
Optimization of fresh concrete pumping pressure loss with CFD-DEM approach
Construction and Building Materials, 2021Yuanqiang Tan +2 more
exaly