Related Experiment Video
Updated: Feb 22, 2026
11:00
Experimental Investigation of Secondary Flow Structures Downstream of a Model Type IV Stent Failure in a 180° Curved Artery Test Section
Published on: July 19, 2016
12.0K
MOTION OF A RIGID CYLINDER BETWEEN PARALLEL PLATES IN STOKES FLOW: PART 2: POISEUILLE AND COUETTE FLOW
1Creare Inc., P.O. Box 71, Hanover, NH 03755, U.S.A.
Computers & Fluids
|September 26, 2017
Summary
This study numerically solves for a neutrally buoyant cylinder in channel flows. Flow behavior around cylinders in channels is similar to spheres in tubes, but differs from spheres in channels.
Area of Science:
- Fluid Dynamics
- Computational Mechanics
- Particle Dynamics
Background:
- Understanding particle motion in channel flows is crucial for microfluidics and industrial processes.
- Previous studies often focused on spherical particles or simplified flow conditions.
Purpose of the Study:
- To numerically investigate the motion of a neutrally buoyant circular cylinder in Poiseuille and Couette flows.
- To calculate forces and torques on stationary cylinders across various sizes and positions.
- To determine translational and angular velocities for drag- and torque-free motion.
Main Methods:
- Numerical solution for fluid-structure interaction.
- Utilized a pre-calculated resistance matrix from prior work (Part 1).
- Compared results with analytical perturbation solutions for limiting cases.
Main Results:
- Quantified forces and torques for a wide range of cylinder sizes and positions.
- Determined velocities for drag- and torque-free particle movement.
- Identified qualitative similarities between cylinder-in-channel and sphere-in-tube flows.
Conclusions:
- Flow patterns around cylinders in channels share similarities with spheres in tubes.
- Spherical particle flow in channels shows distinct trends compared to the other two cases.
- This research provides insights into non-spherical particle dynamics in confined flows.
More Related Videos
Related Concept Videos
01:23Steady, Laminar Flow in Circular Tubes
1.2K
Hagen-Poiseuille flow describes a viscous fluid's steady, incompressible flow through a cylindrical tube with a constant radius R. This flow profile is often applied to understand fluid transport in narrow channels, such as capillaries. It serves as a foundational example of laminar flow. In this model, cylindrical coordinates (r,θ,z) are used to describe the radial (r), angular (θ), and axial (z) dimensions within the tube. For Hagen-Poiseuille flow, the velocity profile is purely axial,...
1.2K
01:22Couette Flow
1.2K
Couette flow represents the flow of fluid between two parallel plates, with one plate fixed and the other moving with a constant velocity. This configuration allows for a simplified analysis using the Navier-Stokes equations, which govern fluid motion under conditions of viscosity and incompressibility. For Couette flow, the assumptions include a steady, laminar, incompressible flow with a zero-pressure gradient in the flow direction. This flow type is beneficial for understanding shear-driven...
1.2K
01:17Steady, Laminar Flow Between Parallel Plates
915
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.
915
01:12Fluid Pressure over Curved Plate of Constant Width
2.0K
When a curved plate of constant width is submerged in a liquid, the pressure acting normal to the plate varies continuously both in magnitude and direction. Calculating the magnitude and location of the resultant force at a point is often challenging for such cases. One of the methods to determine the resultant force and its location involves separately calculating the horizontal and vertical components of the resultant force. This complex calculation can be simplified by representing the...
2.0K
01:10Poiseuille's Law and Reynolds Number
9.5K
Any fluid in a horizontal tube can flow due to pressure differences—fluid flows from high to low pressure. The flow rate (Q) is the ratio of pressure difference and resistance through a horizontal tube. The greater the pressure difference, the higher the flow rate. The flow resistance is expressed as:
9.5K
01:05Fluid Pressure over Flat Plate of Constant Width
2.5K
When a body is submerged in water, it experiences fluid pressure acting normal on its surface and distributed over its area. For better design structures, it is crucial to determine the magnitude and location of the resultant force acting on the surface. In the case of a rectangular plate of constant width submerged in water, the pressure increases with depth, resulting in a linearly varying trapezoidal pressure distribution from the upper to the lower edge of the plate.
The resultant force...
The resultant force...
2.5K