A5034137989- Fluid Dynamics Simulations and Interactions
- Lattice Boltzmann Simulation Studies
- Fluid Dynamics and Heat Transfer
- Biomimetic flight and propulsion mechanisms
- Aerospace Engineering and Energy Systems
- Wave and Wind Energy Systems
- Coastal and Marine Dynamics
- Wind Energy Research and Development
- COVID-19 and healthcare impacts
- Fluid Dynamics and Turbulent Flows
- Model Reduction and Neural Networks
- Plant-based Medicinal Research
- Risk and Safety Analysis
- Ship Hydrodynamics and Maneuverability
- Surface Modification and Superhydrophobicity
- Infection Control and Ventilation
- Hydraulic Fracturing and Reservoir Analysis
- Nuclear Engineering Thermal-Hydraulics
- Nuclear reactor physics and engineering
- Operations Management Techniques
- Ocean Waves and Remote Sensing
- Accounting and Organizational Management
- Underwater Vehicles and Communication Systems
- Fluid Dynamics and Vibration Analysis
- Wind and Air Flow Studies
Cranfield University
2019-2024
Xiamen University of Technology
2024
China Aerospace Science and Technology Corporation
2024
Tongji University
2019-2024
Shenyang Normal University
2024
Southwest University
2023
Shanghai First Maternity and Infant Hospital
2022
John Wiley & Sons (Germany)
2022
Robert Bosch (Germany)
2019-2021
Ministry of Housing and Urban-Rural Development
2021
Abstract This paper presents a new nonlinear non‐intrusive reduced‐order model (NL‐NIROM) that outperforms traditional proper orthogonal decomposition (POD)‐based reduced order (ROM). improvement is achieved through the use of auto‐encoder (AE) and self‐attention based deep learning methods. The novelty this work it uses stacked (SAE) network to project original high‐dimensional dynamical systems onto low dimensional subspace predict fluid dynamics using an method. introduces reduction...
There are increased risks of contracting COVID-19 in hospitals and long-term care facilities, particularly for vulnerable groups. In these environments aerosolised coronavirus released through breathing increases the chance spreading disease. To reduce aerosol transmissions, use low dose far-UVC lighting to disinfect in-room air has been proposed. Unlike typical UVC, which used kill microorganisms decades but is carcinogenic cataractogenic, recent evidence shown that safe around humans. A...
Recent research using UV radiation with wavelengths in the 200–235 nm range, often referred to as far-UVC, suggests that minimal health hazard associated these will allow direct use of far-UVC within occupied indoor spaces provide continuous disinfection. Earlier experimental studies estimated susceptibility airborne human coronavirus OC43 exposed 222-nm based on fitting an exponential dose–response curve data. The current study extends results a wider range doses 222 and uses computational...
A submerged hydrofoil interacting with incoming waves produces combined heaving and pitching motion, facilitating the conversion of wave energy into thrust. When foil is attached to ship hull, generated “green” power from could assist ship's propulsion system significantly reduce fuel costs. This study experimentally assesses thrust generation a fixed mid-hull by comparing towing force at different traveling speeds. The optimal demonstrates cost reduction ranging 10.3% 20.4% diverse speeds...
Abstract A 50-yr resolution reconstruction of climate and environment variability during the period 43–14 ka was developed using 26 high-precision U/Th dates 390 oxygen isotope (δ 18 O) data a stalagmite (SJ1) collected from Songjia Cave in central China, which is close to northwestern boundary Asian summer monsoon (ASM). The δ O record SJ1 displays significant millennial-scale changes that correlate well timing duration with Dansgaard/Oeschger (D/O) events 5–10 Heinrich event 4 (H4)...
A comprehensive review of flapping foils for Wave Devouring Propulsion (WDP) is presented. The foil can effectively utilize wave energy and generate thrust. development WDP discussed, followed by an introduction to the geometry, modes motion, operating principles. These research studies are classified as theoretical, experimental, numerical provided in detail. They demonstrate that marine equipment with a system achieve high conversion efficiency low resistance. Several prototypes...
Plants employ abundant toxic secondary metabolites to withstand insect attack, while pollinators can tolerate some natural defensive compounds. Coumarins, as promising green alternatives chemical insecticides, possess wide application prospects in the crop protection field. Herein, bioactivities of 30 coumarin derivatives against Aphis gossypii were assessed and revealed that 6-methylcoumarin exhibited potent aphicidal activity aphids but displayed no toxicity honeybees. Additionally, using...
The success of the lattice Boltzmann method requires efficient parallel programming and computing power. Here, we present a new solver implemented in Taichi language, named Taichi-LBM3D. It can be employed on cross-platform shared-memory many-core CPUs or massively GPUs (OpenGL CUDA). Taichi-LBM3D includes single- two-phase porous medium flow simulation with D3Q19 model, Multi-Relaxation-Time (MRT) collision scheme sparse data storage. is open source, intuitive to understand, easily...
The hydrofoil harnesses wave energy and converts it into thrust. In this paper, we present the results of first experimental study investigating dynamic behavior a fully passive foil with spring-loaded pitch heave in regular waves. Our shows that real-time load signal is multi-harmonic strong superposition, directly proving robust harvesting performance due to restoring springs. By interpreting hydrofoil's pose path from an image sequence captured underwater, conclude evolution interacting...
Abstract The awareness of the energy and climate crisis has accelerated development renewable sources. Photovoltaic (PV) solar power plants harvest clean convert it to electricity, which will be one most promising alternatives industry in context a low-carbon society. Due its low density, traditional deployment PV systems on land or inland rivers requires much space. Therefore, industries are increasingly interested expanding offshore Floating PhotoVoltaics (FPV) oceans, where FPV less...
The submerged hydrofoil has the capability to harness wave energy and convert it into thrust work with ship's power system. current series of experiments investigated interaction a passive regular waves through comparison generated horizontal forces. Springs provide restoring force for hydrofoil's heave/pitch motion, corresponding heave spring pitch spring. Maintaining constant stiffness (490 N/m), subsequent statistical analysis summarized trends at different stiffnesses (16–300 N/m)...
Extensive studies of antiwetting have been restricted to stationary substrates, while dewetting mechanisms on moving interfaces are still poorly understood. Due the hydrophobic and anisotropic surface characteristics kingfishers, they able easily change flight direction even under high-intensity precipitation. The present study aims mechanistically analyze how synergy interfacial movement, anisotropy, superhydrophobicity affects rapid dehydration. We designed a droplet-conveyor system...
Abstract Transmission of SARS-CoV-2 by aerosols has played a significant role in the rapid spread COVID-19 across globe. Indoor environments with inadequate ventilation pose serious infection risk. Whilst vaccines suppress transmission, they are not 100% effective and risk from variants new viruses always remains. Consequently, many efforts have focused on ways to disinfect air. One such method involves use minimally hazardous 222 nm far-UVC light. small number controlled experimental...
We present an explicit stabilised finite element method for solving Navier-Stokes-Brinkman equations. The proposed algorithm has several advantages. First, the lower equal-order space velocity and pressure is ideal presenting pixel images. Stabilised allows continuity of both tangential normal velocities at interface between regions different micro-permeability or free/porous domain. Second, fully versatile describing complex boundary conditions. Third, matrix–free implementation parallelism...
Summary In this paper, we present a two‐dimensional computational framework for the simulation of fluid‐structure interaction problems involving incompressible flexible solids and multiphase flows, further extending application range classical immersed approaches to context hydrodynamics. The proposed method aims overcome shortcomings such as restriction having deal with similar density ratios among different phases or solve single‐phase flows. First, variation techniques, pioneered boundary...
In preparation for the 2023 NSAC Long Range Plan (LRP), members of Nuclear Science community gathered to discuss current state of, and plans further leveraging opportunities in, QIST in NP research at Quantum Information U.S. Physics Planning workshop, held Santa Fe, New Mexico on January 31 - February 1, 2023. The workshop included 45 in-person participants 53 remote attendees. outcome identified strategic requirements next 5-10 years advance quantum sensing simulations within NP, develop a...
This study presents a novel three-phase Fluid–Structure Interaction (FSI) model for simulating the containment of oil spills. The uses Level Sets to capture evolution multiple interfaces and incorporates spring forces on structure under hybrid wave–current boundary conditions. implementation has been validated through simple harmonic motion models wedge falling simulation demonstrates model's ability handle multi-phase deformation. compares numerical results with experimental data response...
Abstract This research focuses on the optimal design and method of attaching a submerged hydrofoil to an offshore platform enhance stabilisation. The flapping hydrofoil, exhibiting hybrid motion combining heave pitch, is engineered convert incoming wave energy. It generates distinctive wake that effectively counteracts waves, thereby reducing impact. In this study, NACA0030-type was strategically positioned between two columns model. Comprehensive analyses were conducted evaluate...
This article presents a new reduced order model (ROM) for fast solutions to neutron transport problems. The novelty lies in the construction of optimal basis functions spanning space-angle phase-space dimensions Boltzmann equation (BTE). It uses Proper Orthogonal Decomposition and method snapshots form basis, but here 2-stage is proposed that compresses angle, then space, sequentially. approach alleviates potentially limiting memory burden BTE-based ROMs by not processing full discretised...
Submerged flapping hydrofoils have the capability to directly convert wave energy into thrust, offering a sustainable approach marine propulsion. This research employs computational fluid dynamics (CFD) analyze propulsion mechanism of wave-induced hydrofoils. Initially validated through established benchmarks and experimental results with foil in uniform flow, CFD model was then applied examine generation thrust by heading regular wave. The study reveals distinct transition from drag...