Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

The Swing Equation01:21

The Swing Equation

1.3K
The Swing Equation is a fundamental tool in power system dynamics, especially for analyzing the behavior of generating units like three-phase synchronous generators. This equation emerges from applying Newton's second law to the rotor of a generator, encompassing factors such as inertia, angular acceleration, and the interplay between mechanical and electrical torques.
In a steady-state operation, the mechanical torque (Τm) supplied to the generator is balanced by the electrical torque (Τe)...
1.3K
Typical Model Studies01:30

Typical Model Studies

603
Fluid mechanics model studies often utilize scaled-down systems to predict fluid behavior in full-scale environments, such as river flows, dam spillways, and structures interacting with open surfaces. Maintaining Froude number similarity in river models is crucial, as it replicates surface flow features like wave patterns and velocities.
603
Generation of Three-Phase Voltage01:21

Generation of Three-Phase Voltage

726
A three-phase AC generator has a rotor with a rotating magnet placed within the stator mounted with the stationary three-phase winding to generate three-phase voltages via mutual induction. These windings are evenly distributed around the inner circumference of the stator and are arranged 120 electrical degrees apart. Three-phase stator windings consist of three separate coils or groups of coils, known as phases, each connected in Y (star) configuration or Delta configuration.
As the rotor...
726
Turbine-Governor Control01:17

Turbine-Governor Control

899
Turbine-governor control is crucial for maintaining power system stability by balancing turbine mechanical power output with electrical load demand. This mechanism ensures that generator frequency and rotor speed are within acceptable limits during load variations. Turbine-generator units store kinetic energy due to their rotating masses; this energy is released to meet the load requirement when the load increases. The electrical torque of turbines rises to meet the demand, whereas the...
899
Turbulent Flow01:24

Turbulent Flow

632
Turbulent flow is characterized by unpredictable fluctuations in velocity and pressure, which result in a chaotic fluid movement distinct from the orderly patterns of laminar flow. While laminar flow is governed by smooth, parallel layers with minimal mixing, turbulent flow exhibits highly irregular, three-dimensional patterns. This behavior arises due to instabilities in the fluid's velocity profile, and amplifies as the flow velocity increases. Minor disturbances, known as turbulent...
632
Steady, Laminar Flow Between Parallel Plates01:17

Steady, Laminar Flow Between Parallel Plates

755
Understanding steady, laminar flow between parallel plates is essential for analyzing and designing flow in narrow rectangular channels, commonly found in various water conveyance and drainage systems. The Navier-Stokes equations govern fluid motion and are generally challenging to solve due to their nonlinearity. However, simplifications are possible in certain cases, like the steady laminar flow between parallel plates. For this scenario, we assume steady, incompressible, laminar flow.
755

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Multi-omics analysis reveals propanol is superior electron donor for odd-chain elongation.

Bioresource technology·2026
Same author

Virus-like particles in cancer immunotherapy: bridging human and veterinary medicine through one health.

Journal of nanobiotechnology·2026
Same author

Population Pharmacokinetic-Based Meropenem Dosing in Critically and Non-Critically Ill Patients with Mixed Gram-Negative Bacterial Infections.

Clinical pharmacology in drug development·2026
Same author

The Mechanisms of Changes in Storage Substances and Hormone Levels During Artificial Aging of Different Varieties of Perilla.

Current issues in molecular biology·2026
Same author

Research on Simulation of Fatigue Crack Growth in LNG Storage Tanks and Prediction of Residual Service Life.

Materials (Basel, Switzerland)·2026
Same author

Dual-wavelength LED synergy-tailored charge dynamics and reactive species modulation for a high-performance photocatalytic ceramic membrane reactor in complex water matrices.

Water research·2026

Related Experiment Video

Updated: Jan 8, 2026

Measurements of Waves in a Wind-wave Tank Under Steady and Time-varying Wind Forcing
08:54

Measurements of Waves in a Wind-wave Tank Under Steady and Time-varying Wind Forcing

Published on: February 13, 2018

9.0K

Phase screen generation method for general oceanic turbulence.

Guangqing Liu, Xiang Yi, Mingjian Cheng

    Journal of the Optical Society of America. A, Optics, Image Science, and Vision
    |December 18, 2025
    PubMed
    Summary

    Accurate simulation of light propagation in oceanic turbulence requires precise phase screens (PSs). A hybrid approach combining frequency-domain and spatial-domain methods optimizes PS generation for improved accuracy in optical wave propagation studies.

    More Related Videos

    Simultaneous Measurement of Turbulence and Particle Kinematics Using Flow Imaging Techniques
    10:53

    Simultaneous Measurement of Turbulence and Particle Kinematics Using Flow Imaging Techniques

    Published on: March 12, 2019

    7.5K
    Visualization of Flow Field Around a Vibrating Pipeline Within an Equilibrium Scour Hole
    09:37

    Visualization of Flow Field Around a Vibrating Pipeline Within an Equilibrium Scour Hole

    Published on: August 26, 2019

    6.1K

    Related Experiment Videos

    Last Updated: Jan 8, 2026

    Measurements of Waves in a Wind-wave Tank Under Steady and Time-varying Wind Forcing
    08:54

    Measurements of Waves in a Wind-wave Tank Under Steady and Time-varying Wind Forcing

    Published on: February 13, 2018

    9.0K
    Simultaneous Measurement of Turbulence and Particle Kinematics Using Flow Imaging Techniques
    10:53

    Simultaneous Measurement of Turbulence and Particle Kinematics Using Flow Imaging Techniques

    Published on: March 12, 2019

    7.5K
    Visualization of Flow Field Around a Vibrating Pipeline Within an Equilibrium Scour Hole
    09:37

    Visualization of Flow Field Around a Vibrating Pipeline Within an Equilibrium Scour Hole

    Published on: August 26, 2019

    6.1K

    Area of Science:

    • Ocean optics
    • Turbulence modeling
    • Computational physics

    Background:

    • Oceanic turbulence causes optical wave distortions via refractive-index fluctuations.
    • The split-step method is common for simulating light propagation in turbulent media.
    • Accurate phase screen (PS) generation is crucial for the split-step method's effectiveness.

    Purpose of the Study:

    • To develop an accurate method for generating phase screens (PSs) for oceanic turbulence simulations.
    • To improve the fidelity of numerical simulations of optical wave propagation in seawater.

    Main Methods:

    • Utilized the general oceanic turbulence refractive-index spatial power-law spectrum (RISPS) to create PSs.
    • Employed a hybrid implementation combining the PWD (Paulson, Wu, and Davis) frequency-domain approach.
    • Integrated Zernike polynomial-based spatial-domain decomposition for PS generation.

    Main Results:

    • Demonstrated that a hybrid approach combining frequency and spatial domain methods yields optimal accuracy for PS generation.
    • Showcased the effectiveness of the hybrid method in simulating optical wave propagation through oceanic turbulence.

    Conclusions:

    • The hybrid PWD and Zernike polynomial-based method provides superior accuracy for generating phase screens in oceanic turbulence simulations.
    • This optimized PS generation is vital for advancing the understanding of light propagation in marine environments.