Results 61 to 70 of about 374 (172)

AABA Task Force on the Ethical Study of Human Remains Recommendations: Proposal for the Management and Oversight of Community Partnership and Ethical Stewardship of Human Remains

American Journal of Biological Anthropology, Volume 189, Issue 3, March 2026.
ABSTRACT Ethically responsible and culturally acceptable management, study, and stewardship of legacy skeletal and other human remains currently held and managed in scientific institutions is a longstanding concern that, over the length of these collections' existence, has been exiguously addressed.
Benjamin M. Auerbach, Fatimah L. C. Jackson, Shamsi Daneshvari Berry, Michael L. Blakey, Jennifer Caldwell, Carter Clinton, Joseph L. Graves Jr, Joseph B. Jones, Ellen M. Lofaro, Ripan S. Malhi, Carmen V. Mosley, Phoebe R. Stubblefield   +11 more
wiley   +1 more source

Numerical Investigation of Transonic Axial Compressor Rotor With Leading‐Edge Tubercles

Engineering Reports, Volume 8, Issue 3, March 2026.
Amplitude, wavelength, and span‐wise location of the leading‐edge tubercles on a transonic NASA Rotor 37 compressor are numerically optimized. An increase in efficiency by 0.52% compared to the corresponding baseline rotor is observed. The location of the shockwave moves downstream of the rotor with 1.91% higher pressure.
Muhammad Hamza, Tariq Talha, Shahid Aziz, Syed Osama Safdar Bukhari, Abdur Rehman Mazhar, Rehan Khan, Dong‐Won Jung   +6 more
wiley   +1 more source

Comparative Numerical Studies for the Flow Energy Dissipation Features in a Vertical Two‐Stage Centrifugal Pump in Pump and Turbine Conditions

Energy Science &Engineering, Volume 14, Issue 2, Page 764-779, February 2026.
Based on entropy theory, this study presents a comparative numerical analysis of the flow energy dissipation (FED) in a VTSP under two distinct operating conditions: pump condition and turbine condition, both characterized by relatively high hydraulic efficiencies of 88.9% and 87.4%, respectively. In pump condition, the highest FED production occurs in
S. Liu, T. P. Chen, Y. Li, M. Q. Liang, Y. J. Zhang, X. Z. Wei   +5 more
wiley   +1 more source

Shrouded Wind and Water Turbine Analytical Model Extensions for Tip Gaps, Center Bodies, and Flow Blockage

Wind Energy, Volume 29, Issue 2, February 2026.
ABSTRACT This paper provides improvements to a previously presented simple, accurate, lower order analytical model for predicting the performance of horizontal‐axis shrouded turbines for a wide range of shroud airfoil shapes varying in length, camber, and thickness. The new, extended model incorporates explicit quantitative predictions of those effects
M. J. Werle
wiley   +1 more source

A Review of Tip Clearance in Propeller, Pump and Turbine

Energies, 2018
Propellers, pumps, and turbines are widely applied in marine equipment, water systems, and hydropower stations. With the increasing demand for energy conservation and environmental protection, the high efficiency and the stable operation of pumps and ...
Yabin Liu, Lei Tan, Binbin Wang
doaj   +1 more source

Cavity Instabilities in a High-Speed Low-Pressure Turbine Stage

International Journal of Turbomachinery, Propulsion and Power
This study investigates the time-resolved aerodynamics in the cavity regions of a full-scale, high-speed, low-pressure turbine stage representative of geared turbofan engines.
Lorenzo Da Valle, Antonino Federico Maria Torre, Filippo Merli, Bogdan Cezar Cernat, Sergio Lavagnoli   +4 more
doaj   +1 more source

3-D Viscous Flow Analysis of a Mixed Flow Pump Impeller

International Journal of Rotating Machinery, 2001
This paper presents the results of a study using a coarse grid to analyze the flow in the impeller of a mixed flow pump. A commercial computational fluid dynamics code (FLOTRAN) is used to solve the 3-D Reynolds Averaged Navier Stokes equations in a ...
Steven M. Miner
doaj   +1 more source

Drag Reduction Effect of Gradually-Varying Riblet Structures on Conical Rotating Disks

水下无人系统学报
Based on the enclosed flow field conditions and optimized dynamic-static clearances, a gradually-varying riblet drag reduction structure was proposed by combining the drag reduction principle of uniform-sized riblets to address the problem of increased ...
Sen WU, Jiaqi ZOU, Yicheng FAN, Dan ZHAO
doaj   +1 more source

Dynamic characteristics of rotating shrouded-bladed-disc.

, 1986
This investigation deals with the vibration problem of a rotating shrouded bladed disc and with the dynamic stresses of blades and packets of turbine blades. The wave propagation technique in periodic structures is introduced into the finite element method to reduce the overall number of degrees of freedom. The application of wave propagation technique
openaire   +1 more source

Repair of aircraft engine parts made of heat-resistant nickel alloys using additive plasma technologies

Авіаційно-космічна техніка та технологія
In order to improve the maintainability of aircraft engine parts, the article examined the use of additive technologies in repairs. The article establishes that the use of additive technologies by the method of plasma surfacing in the repair of aircraft ...
Konstantin Balushok, Sergey Chigileychik
doaj   +1 more source