関連する実験動画

Updated: Jul 11, 2026

Investigating the Three-dimensional Flow Separation Induced by a Model Vocal Fold Polyp
09:58

Investigating the Three-dimensional Flow Separation Induced by a Model Vocal Fold Polyp

Published on: February 3, 2014

アギュラスの流れにおける異常な上流逆転

J R Lutjeharms, R C van Ballegooyen

    Science (New York, N.Y.)
    |June 24, 1988
    PubMed
    まとめ

    重要な海流であるアグルハス流は,その典型的な経路の上流に異常な流れの逆転を示しています. これらの逆転は,海洋の熱伝送を大幅に変化させ,気候に影響を与える可能性があります.

    さらに関連する動画

    Image-based Lagrangian Particle Tracking in Bed-load Experiments10:32

    Image-based Lagrangian Particle Tracking in Bed-load Experiments

    Published on: July 20, 2017

    Experimental Investigation of the Flow Structure over a Delta Wing Via Flow Visualization Methods09:17

    Experimental Investigation of the Flow Structure over a Delta Wing Via Flow Visualization Methods

    Published on: April 23, 2018

    関連する概念動画

    Irrotational Flow01:28

    Irrotational Flow

    Irrotational flow is characterized by fluid motion where particles do not rotate around their axes, resulting in zero vorticity. For a flow to be irrotational, the curl of the velocity field must be zero. This imposes specific conditions on velocity gradients. For instance, to maintain zero rotation about the z-axis, the gradient condition:
    Bernoulli's Equation for Flow Along a Streamline01:30

    Bernoulli's Equation for Flow Along a Streamline

    Bernoulli's equation relates the energy conservation in a fluid moving along a streamline. The equation applies to incompressible and inviscid fluids under steady flow. For such a flow, Newton's second law is applied to a small fluid element, which experiences forces due to pressure differences, gravity, and velocity variations. The force balance leads to the following form of Bernoulli's equation:
    Bernoulli's Equation for Flow Normal to a Streamline01:16

    Bernoulli's Equation for Flow Normal to a Streamline

    Bernoulli's equation for flow normal to a streamline explains how pressure varies across curved streamlines due to the outward centrifugal forces induced by the fluid's curvature. The pressure is higher on the inner side of the curve, near the center of curvature, and decreases outward to balance these centrifugal forces.
    The pressure difference depends on the fluid's velocity and radius of curvature. The pressure variation is minimal in flows with nearly straight streamlines. However, the...
    Rapidly Varying Flow01:24

    Rapidly Varying Flow

    Rapidly varying flow (RVF) in open channels is characterized by abrupt changes in flow depth over a short distance, with the rate of depth change relative to distance often approaching unity. These flows are inherently complex due to their transient and multi-dimensional nature, making exact analysis difficult. However, approximate solutions using simplified models provide valuable insights into their behavior.Key Features of Rapidly Varying FlowRVF is commonly observed in scenarios involving...
    Coriolis Force01:23

    Coriolis Force

    An accelerating particle experiences a force equal to the mass multiplied by the acceleration in an inertial frame of reference. Consider a particle in a non-inertial frame of reference, such as a sliding ball on a rotating table. The acceleration of the ball in this rotating reference frame is different than in the intertial frame, which modifies its equation of motion. The fictitious forces acting additionally on a rotating frame of reference alter Newton's Second Law expression. Centripetal...
    Eddy Currents01:25

    Eddy Currents

    Since eddy currents occur only in conductors, magnets can separate metals from other materials. For example, in a recycling center, trash is dumped in batches down a ramp, beneath which lies a powerful magnet. Conductors in the trash are slowed by eddy currents, while nonmetals in the trash move on, separating from the metals. This works for all metals, not just ferromagnetic ones.
    Other major applications of eddy currents appear in metal detectors and the braking systems of trains and roller...