Results 41 to 50 of about 487 (88)

A Review of Flow Field and Heat Transfer Characteristics of Jet Impingement From Special‐Shaped Holes

Engineering Reports, Volume 8, Issue 9, September 2026.
Special‐shaped nozzles and nanofluid integration enhance jet impingement cooling by improving heat transfer and thermal uniformity. However, gains are constrained by increased pressure drop and stability challenges, highlighting the need for optimized designs and multiscale modeling to achieve efficient, scalable thermal management.
Md Atiqur Rahman, Savinay Kalluri, Kalakoti Madhurya, Katikarla Arun Kumar, Abhinav Adarsh, S. M. Mozammil Hasnain, Prabhu Paramasivam, Leliso Hobicho Dabelo   +7 more
wiley   +1 more source

Numerical investigation of effects of damaged and repaired surfaces on flow behavior of nozzle vane trailing edge

Journal of Fluid Science and Technology
The nozzle guide vane, which is a stationary part of a gas turbine, is a critical component of gas turbine engines because it must operate under harsh conditions with high pressure and temperature.
Siwanart KHUMHAENG, Thitapa SUKSA, Nutcha LAOHALERTCHAI, Benyapa CHAIPRASIT, Prasert PRAPAMONTHON, Bo YIN   +5 more
doaj   +1 more source

Flow and Heat Transfer Characteristics of the Turbine Blade Variable Cross-Section Internal Cooling Channel with Turning Vane

Applied Sciences, 2023
The gas turbine blades are scoured by high temperature gas sustainedly and long-term in harsh environment. It is of great significance to explore effective cooling methods to lower the turbine blade temperature so as to ensure safe and stable operation ...
Tao Xu, Dongbo Shi, Di Zhang, Yonghui Xie   +3 more
doaj   +1 more source

Conceptual Model of the Debarking Process of Large Wood in Rivers

Water Resources Research, Volume 62, Issue 9, September 2026.
Abstract When transported in rivers by short‐term episodic events such as floods and debris flows, large wood interacts with the flow, sediment, and river boundaries, leading to physical degradation such as weathering, abrasion, and breakage. This degradation, manifested as mass loss and structural alteration, weakens wood stability, increases mobility,
Jiangtao Yang, Frank Seidel, Virginia Ruiz‐Villanueva, Hervé Piégay, Mário J. Franca   +4 more
wiley   +1 more source

Blade Count and Rotational Speed Sensitivity of Vertical‐Axis Turbines Under Guided Vehicle‐Generated Transient Wakes

Energy Science &Engineering, Volume 14, Issue 7, Page 3324-3345, July 2026.
Passing vehicles generate short‐duration wakes that can be redirected toward a vertical‐axis turbine. The interaction between wake structure, blade count, and rotational speed governs transient torque production. Low‐solidity configurations combined with tuned rotational speed enhance energy extraction under vehicle‐induced gusts.
Aydin Ulus, Stefan Ilie Moldovan
wiley   +1 more source

Design and Implementation of an Automated Safety Control System for the Jocelyn Bell Burnell Radio Telescope

Radio Science, Volume 61, Issue 7, July 2026.
Abstract Large parabolic antennas used in radio astronomy are mechanically vulnerable to high wind loads, which can compromise both structural integrity and pointing calibration. We present the design, implementation, and validation of an automated safety control system for the 4.5 m Jocelyn Bell Burnell radio telescope at the Public University of ...
Rubén Benítez, Rafael Ruiz, Silvia Diaz   +2 more
wiley   +1 more source

Wind Tunnel Assessment of Dynamic Induction Control Under Varying Inflow Wind Directions

Wind Energy, Volume 29, Issue 6, June 2026.
ABSTRACT Dynamic induction control (DIC), also known as pulse control, is a wake‐mixing strategy intended to improve wind farm efficiency by mitigating wake‐induced power losses. It typically employs harmonic collective blade pitching to excite wake instabilities, forming coherent pulsing structures that enhance turbulent mixing and accelerate wake ...
Manuel Alejandro Zúñiga Inestroza, Paul Hulsman, Martin Kühn, Vlaho Petrović   +3 more
wiley   +1 more source

The Parameters Affect on Power Coefficient Vertical Axis Wind Turbine

International Islamic University Malaysia Engineering Journal, 2012
: This study describes the design of a special type of vertical axis rotor wind turbine with moveable vertically positioned vanes. The novel design increases the torque in the left side of the wind turbine by increasing the drag coefficient.
Ahmed Y. Qasim, Ryspek Usubamatov, Zuraidah M. Zain, Ghulam Abdul Quad   +3 more
doaj   +1 more source

Modeling and Power Regulation Strategy of Variable‐Speed Pumped Storage Unit With Full‐Size Converter in Pump Mode

Energy Science &Engineering, Volume 14, Issue 5, Page 2393-2413, May 2026.
A numerical model of variable‐speed pumped storage unit (VSPSU) with full‐size converter (FSC) under fast speed control strategy is established. Additionally, the correctness of the model was validated by comparing with SIMSEN simulation results and text prototype data from NARI.
Weijia Yang, Peilin Wu, Zixuan Shao, Yiwen Liao, Yufei Teng, Huabo Shi   +5 more
wiley   +1 more source

Prediction of secondary flow losses in an entrance duct to a low-pressure turbine

Archives of Mechanics, 2019
Secondary flow features and total pressure losses by means of the total pressure loss coefficient are discussed in an entrance duct, named a turbine central frame (TCF), to a four-stage low-pressure turbine (LPT) of aero-engine.
P. Jonak, T. Borzęcki, S. Kubacki
doaj   +1 more source