Impacts of the Assimilation of Radar Radial Velocity Data Using the Ensemble Kalman Filter (EnKF) on the Analysis and Forecast of Typhoon Lekima (2019) by Jiping Guan, Jiajun Chen, Xinya Li, Mengting Liu, Mingyang Zhang

Get full text

Impact of Background Error Length Scale Tuning in WRF-3DVAR System on High-Resolution Radar Data Assimilation for Typhoon Doksuri Simulation by Weidi Zhai, Feifei Shen, Jing Liu, Haiyan Fei, Liu Yi, Shen Wan, Xiaolin Yuan

Get full text

CFD analysis of Gurney flap orientation and plasma actuation for turbulent flow control over NACA4412 airfoil by K.V. Karthikeyan, R. Harish

“…The combination of 45∘ gurney flap and plasma actuator results in the highest lift-to-drag ratio among all configurations. Vortex structures near the gurney flap are visualized, demonstrating that enhanced vortex formation mitigates separation of flow. …”
Get full text

Predicting Sudden Stratospheric Warmings Using Video Prediction Methods by Yuhao Du, Jiankai Zhang, Xinyuan Cheng, Yixiong Lu, Douwang Li, Wenshou Tian

“…The results indicate that our model outperforms these models across various evaluation metrics, compare with ensemble prediction results GMRNN's Structural Similarity increased by approximately 11.2%, and the Anomaly Correlation Coefficient increased by approximately 9.5%. …”
Get full text

A Three-Dimensional Simulation of Supercell Convective Storm by V. Spiridonov, Z. Dimitrovski, M. Curic

“…Running the model in a high-resolution mode gives a more realistic view of the life cycle of convective storm, internal structure, and storm behavior. The storm structure and evolutionary properties are evaluated by comparing the modeled radar reflectivity to the observed radar reflectivity. …”
Get full text

Comparison of the Flow Fields between Nozzles with Full-Open and Open-Close Valves at Transonic Velocity by Zijie Li, Hao Wang

“…To evaluate the differences between nozzles with full-open valve and open-close valve at transonic velocity, we established two numerical simulation models to analyze the flow-field structure and thrust performance in the ejector nozzle. …”
Get full text

Application of numerical simulation for the modernization of the exhaust system of gas turbine engines by T. V. Boshchenko, S. Yu. Lebedev, A. N. Korolevskikh

“…The directions of modernization were chosen by considering the pattern of the flow of exhaust gases (separated flow zones and vortex flows) in the exhaust system during numerical modeling (Computational Fluid Dynamics). …”
Get full text

A lightweight intelligent compression method for fast Sea Level Anomaly data transmission. by Xiaodong Ma, Xiang Wan, Lei Zhang, Dong Wang, Zeyuan Dai

“…., peak signal-to-noise ratio, PSNR; structural similarity index, SSIM). The architecture integrates global-local dual discriminators to enforce spatiotemporal coherence of mesoscale vortices, employs dilated convolutions to enhance feature receptive fields without computational overhead, and incorporates vortex recognition rate as a physics-aware evaluation metric. …”
Get full text

Experimental and numerical investigation of endwall flow control through air injection in a contra rotating fan by Maryam Sadoddin, Hossein Khaleghi

“…Abstract This study reports on an experimental and numerical investigation of tip leakage flow control and its effects on the endwall flow structure and stall evolution of a contra-rotating fan. …”
Get full text

Research on the flow field and vibration characteristics of aerostatic bearing with conical chambers by Xiao Long ZHAO, Ting SUN, Wei Chao ZHANG, Min LUO, Jun Hao LI

“…Experimental tests are conducted to evaluate the vibration characteristics of the conical cavity bearing. …”
Get full text

Advances in wide-field fundus imaging for pachychoroid disease by HE Guiqin, WEN Feng

“…Traditional fundus examination is limited to the posterior pole in single-frame imaging, making it challenging to comprehensively evaluate the extent of lesions. Wide-field imaging technology has overcome this limitation, with its imaging range covering from the posterior pole to the ampulla of vortex veins at the equator (approximately 60-100°), while ultra-wide-field imaging can extend from the posterior pole to the pars plana (approximately 110-220°). …”
Get full text

Role of regional and global datasets in the simulation of intense tropical cyclones over Bay of Bengal region in a convection‐permitting scale by Thatiparthi Koteshwaramma, Kuvar Satya Singh

“…The initial cyclonic vortex, the vertical profile of horizontal wind speed, and relative humidity from different datasets were assessed to evaluate the initial structure and validated with IMD best‐fit track data. …”
Get full text

Exploring the Assimilation of All-Sky FY-4A GIIRS Radiances and Its Forecasts for Binary Typhoons by Qian Xie, Deqin Li, Yi Yang, Yonghong Zhao, Hong Li, Shengjie Zhu, Xiao Pan

Get full text

CFD-Based Investigation of the Operation Process of Radial Labyrinth Machinery Under Different Geometrical Configurations by Przemyslaw Szulc, Janusz Skrzypacz

“…Analysis of the velocity profiles and vortex structures formed between the active and passive discs was performed. …”
Get full text

Performance of piezoelectric beam type energy harvester under flow-induced vibration by Amya Ranjan Ray, Santanu Koley

“…It examines the effect of varying the spacing distance between two structures, considering three cases with distances of $$d_2=0.0505$$ d 2 = 0.0505 m, 0.101 m, and 0.202 m, to evaluate their influence on natural frequencies and voltage output. …”
Get full text

Heat transfer enhancement in a supercritical CO2–water printed circuit heat exchanger using rectangular cavities and pulsating flow by Shiyu Lai, Tieyu Gao, Xiangrui Meng, Liang Zhou, Zhihui Zhang, Ruihao Cheng

“…The enhanced thermal performance stems from pulsating flow-induced periodic vortices, generating intense fluid disturbances within the micro-channel. These organized vortex structures substantially boost local turbulent kinetic energy, disrupt the thermal boundary layer, effectively reduce thermal resistance, and improve field synergy. …”
Get full text

Large Eddy Simulation of Hydrodynamic Characteristics of Hydrofoils Based on Blow Suction Combined Jet by Yongcheng Li, Ziying Pan, Chaoshan Si, Yinghua Li

“…The fluid dynamics of the BSCJ foil at various angles of attack were numerically assessed using the large eddy simulation (LES) approach. The flow structures, encompassing vortex formations, pressure coefficients, and the impact of boundary layer velocity, were presented and evaluated to elucidate the control mechanism and influence of BSCJ. …”
Get full text

Flow Characteristics of a Rich-Quench-Lean Combustor-Combined Low-Emission and High-Temperature Rise Combustion by Jianzhong Li, Jian Chen, Li Yuan, Ge Hu, Jianhan Feng

“…To determine the flow field structure and flow characteristics of a rich-quench-lean (RQL) combustor-combined low-emission and high-temperature rise combustion, a two-dimensional PIV technology was used to evaluate the effect of aerodynamic and structural parameters on the flow field and flow characteristics of the combustor. …”
Get full text

Geometric design and optimization of extended surfaces for enhanced heat transfer: A comprehensive review by Zhihang Yan, Cheen Sean Oon, Boon Thong Tan, Jong Boon Ooi

“…Furthermore, recent advances in passive heat transfer enhancement using extended surface technologies encompassing different fin types, such as straight fins, longitudinal fins, radial fins, annular fins, helical fins, pin fins, wavy fins, offset-strip fins, and louvered fins, as well as turbulators based on extended surface technologies, including ribs, blocks, baffles, and other vortex generators are systematically examined. The influence of fundamental geometric parameters on flow and heat transfer characteristics is thoroughly evaluated. …”
Get full text

The Use of Vacuum Plasma Surface Treatment to Improve Bone Healing and Regeneration in Socket Preservation and GBR: A Case Series with Histological Analysis by Marco Tallarico, Michele Troia, Milena Pisano, Silvio Mario Meloni, Dario Melodia, Claudia Della Via, Dolaji Henin, Francesco Mattia Ceruso, Carlotta Cacciò, Aurea Immacolata Lumbau

“…ACTILINK Reborn with Universal Vortex Holder (Plasmapp Co., Ltd., Daejeon, Republic of Korea) was used to treat all biomaterials. …”
Get full text