Results 181 to 190 of about 10,932 (206)

Numerical solution of laminar recirculating flow between shrouded rotating disks

Computers & Fluids, 1979
Abstract In this paper we develop a method to obtain the numerical solution of the problem of recirculating flow between shrouded rotating disks. The major difficulty of this type of problem is in obtaining convergence at high Reynolds numbers. With the technique developed in this paper we have obtained convergence for Reynolds numbers up to 10,000 ...
Schultz, David H., Shah, V. L.
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Phase-resolved flow characteristics between two shrouded co-rotating disks

Experiments in Fluids, 2011
Flow characteristics in the interdisk midplane between two shrouded co-rotating disks were experimentally studied. A laser-assisted particle-laden flow-visualization method was used to identify the qualitative flow behaviors. Particle image velocimetry was employed to measure the instantaneous flow velocities.
R. F. Huang, M. K. Hsieh
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On the flow between two rotating shrouded discs

Computers & Fluids, 1986
Abstract Numerical solutions to the full Navier Stokes equations for the flow enclosed between two rotating discs and a sidewall are presented. The sidewall remains fixed throughout, while we consider examples in which: (i) the bottom disc is rotating and the top disc is fixed; (ii) the two discs rotate in the same sense; (iii) the two discs rotate ...
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Heat Transfer to an Actively Cooled Shroud With Blade Rotation

Volume 5B: Heat Transfer, 2014
In this paper, an experimental study of the shroud heat transfer behavior and the effectiveness of shroud cooling under the conditions of rotation is undertaken in a single stage turbine at low rotation speeds. The shroud consists of a periodic distribution of cooling holes that are 1 mm in diameter (D).
Onieluan Tamunobere, Christopher Drewes, Sumanta Acharya   +2 more
openaire   +1 more source

Flows around rotating disks with and without rim-shroud gap

Experiments in Fluids, 2009
Experimental and numerical approaches have been used to study the effect of the radial rim-shroud gap on the flow structures found around a rotating disk in a finite cylindrical casing. When the radius of the disk and the inner radius of the casing are comparable and there is no radial gap, instabilities bring spiral rolls with a positive front angle ...
Takashi Watanabe, Hiroyuki Furukawa
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Acoustics of a counter-rotating shrouded propfan - Prediction and data

Journal of Aircraft, 1995
The acoustic characteristics of a counter-rotating integrated shrouded propfan are studied both theoretically and experimentally. The calculation method comprises the main noise generation mechanisms of the propulsor as steady rotor blade loading noise, rotor/rotor and rotor/struts interaction noise, inlet flow distortion noise, and broadband noise. It
Klaus Heinig, Fritz Kennepohl, Paul Traub   +2 more
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Heat Transfer to an Actively Cooled Shroud With Blade Rotation

Journal of Thermal Science and Engineering Applications, 2015
An experimental study of the shroud heat transfer behavior and the effectiveness of shroud cooling are undertaken in a single-stage turbine at low rotation speeds. The shroud consists of a periodic distribution of laterally oriented cooling holes that are angled at 45 deg to the shroud surface in a repeating circumferential pattern and has five unique ...
Onieluan Tamunobere, Christopher Drewes, Sumanta Acharya, Chiyuki Nakamata   +3 more
openaire   +1 more source

Turbine Blade Tip Cooling With Blade Rotation—Part II: Shroud Coolant Injection

Journal of Turbomachinery, 2015
In this paper, blade tip cooling is investigated with coolant injection from the shroud alone and a combination of shroud coolant injection and tip cooling. With a nominal rotation speed of 1200 rpm, each blade consists of a cut back squealer tip with a tip clearance of 1.7% of the blade span. The blades also consist of tip holes and pressure side (PS)
Onieluan Tamunobere, Sumanta Acharya
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Heat Transfer From a Shrouded Rotating Disk With Film Cooling

Journal of Heat Transfer, 1966
A study of the cooling effect of secondary fluid injection on the heat transfer between a shrouded rotating disk and a radially inward main flow stream is presented. The investigation is intended as a model study of film-cooled, radial-flow gas turbines.
D. E. Metzger, J. W. Mitchell
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Rotating Instabilities in Shrouded Low Pressure Turbine at Design and Off-Design Conditions

Journal of Turbomachinery, 2023
Abstract The present study aims to analyze the rotating instabilities that may occur inside shroud cavities above rotors of low-pressure turbine configurations. Unsteady simulations have been carried out at design and off-design conditions on two configurations, one being a multi-stage configuration.
Maxime Perini, Nicolas Binder, Yannick Bousquet, Eric Schwartz   +3 more
openaire   +1 more source