関連する実験動画

Updated: Jun 18, 2026

High-speed Particle Image Velocimetry Near Surfaces
11:59

High-speed Particle Image Velocimetry Near Surfaces

Published on: June 24, 2013

マントルのコンベクションの3次元不安定性,複数の相変遷を伴う

S Honda, D A Yuen, S Balachandar

    Science (New York, N.Y.)
    |February 26, 1993
    PubMed
    まとめ

    数値シミュレーションにより,相変化がマントルのコンベクションにどのように影響するかが明らかになった. 寒いマントルの物質は急速に沈み,重要な物質交換を促し,潜在的にスーパープルームを生成します.

    さらに関連する動画

    Three-dimensional Particle Tracking Velocimetry for Turbulence Applications: Case of a Jet Flow13:02

    Three-dimensional Particle Tracking Velocimetry for Turbulence Applications: Case of a Jet Flow

    Published on: February 27, 2016

    Visualization of Flow Field Around a Vibrating Pipeline Within an Equilibrium Scour Hole09:37

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

    Published on: August 26, 2019

    関連する概念動画

    Steady Flow of a Fluid Stream01:27

    Steady Flow of a Fluid Stream

    Consider a control volume, such as a pipe with solid boundaries, through which fluid flows and changes direction due to the impulse exerted by the resulting force from the pipe walls. In steady flow, the mass of fluid entering the control volume at a given time, t, with velocity v1, is equal to the mass leaving after infinitesimal time dt, with velocity v2.
    During this process, the momentum of the fluid within the control volume remains constant over the time interval dt. By applying the...
    Multimachine Stability01:25

    Multimachine Stability

    Multimachine stability analysis is crucial for understanding the dynamics and stability of power systems with multiple synchronous machines. The objective is to solve the swing equations for a network of M machines connected to an N-bus power system.
    In analyzing the system, the nodal equations represent the relationship between bus voltages, machine voltages, and machine currents. The nodal equation is given by:
    Steady, Laminar Flow Between Parallel Plates01:17

    Steady, Laminar Flow Between Parallel Plates

    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.
    Uniform Depth Channel Flow01:27

    Uniform Depth Channel Flow

    Uniform depth channel flow keeps fluid depth consistent along channels such as irrigation canals. In natural channels, such as rivers, approximate uniform flow is often assumed. This condition occurs when the channel’s bottom slope matches the energy slope, balancing potential energy lost from gravity with head loss due to shear stress. This balance prevents depth changes along the channel length, resulting in a steady, uniform flow.Uniform flow in open channels with a constant cross-section...
    Uniform Depth Channel Flow: Problem Solving01:18

    Uniform Depth Channel Flow: Problem Solving

    To calculate the flow rate for a trapezoidal channel, first, identify the bottom width, side slope, and flow depth of the channel. The cross-sectional area (A) corresponding to the depth of flow (y), channel bottom width (B), and side slope (θ) is determined by:Next, calculate the wetted perimeter, which includes the bottom width and the sloped side lengths in contact with the water. Using the values of the cross-sectional area and the wetted perimeter, determine the hydraulic radius by...
    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...