Related Experiment Video
Updated: Mar 18, 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
Modified Numerical Simulation Model of Blood Flow in Bend
1School of Mechatronic Engineering and Automation, Shanghai University, Shanghai 200072, China.
The West Indian Medical Journal
|July 12, 2016
Summary
This study modifies a numerical blood flow model to account for curvature effects in bends. The enhanced model accurately predicts blood flow data, improving simulation accuracy for curved pathways.
Area of Science:
- Biomedical Engineering
- Computational Fluid Dynamics
- Hemodynamics
Background:
- Blood flow in curved geometries is complex and influences various cardiovascular conditions.
- Existing numerical models may not fully capture the impact of curvature on blood flow dynamics.
- Accurate simulation of blood flow is crucial for understanding cardiovascular diseases and developing treatments.
Purpose of the Study:
- To develop and validate a modified numerical simulation model for blood flow in bends.
- To investigate the effect of curvature on blood flow parameters.
- To enhance the predictive accuracy of blood flow simulations in curved vessels.
Main Methods:
- A numerical simulation model for blood flow was developed.
- Curvature modifications were applied to the standard blood flow model.
- The modified model was validated using experimental flow data from a U-tube setup.
Main Results:
- The modified blood flow model demonstrated improved prediction accuracy compared to the standard model.
- Simulation results closely matched experimental data, confirming the model's effectiveness.
- The curvature effect on blood flow was effectively quantified by the modified model.
Conclusions:
- The modified blood flow model effectively improves prediction accuracy for blood flow in bends.
- This enhanced model provides a more reliable tool for simulating hemodynamics in curved arterial segments.
- The findings have implications for computational modeling in cardiovascular research and medical device design.
More Related Videos
Related Concept Videos
Application of the Linear Momentum Equation
514
The application of the linear momentum equation can be used to analyze the forces needed to hold a 180-degree pipe bend in place with flowing water. In this case, water flows through the bend with a constant cross-sectional area of 0.01 square meters and a flow velocity of 15 meters per second. The pressure at the entrance is 0.2 Megapascals and the pressure at the exit is 0.16 Megapascals.
The goal is to determine the force components in the x and y directions to hold the pipe in place. Since...
The goal is to determine the force components in the x and y directions to hold the pipe in place. Since...
514
Typical Model Studies
674
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.
674
Applications of Integration to Find Blood Flow
90
Blood flow through a cylindrical blood vessel can be mathematically described using the principles of laminar flow, a regime in which fluid moves smoothly in parallel layers. In this model, the velocity of the blood is not uniform across the cross-section of the vessel; rather, it varies with the radial distance from the center. The maximum velocity occurs along the central axis, decreasing progressively toward the vessel walls, where it reaches zero due to viscous drag.Approximating Blood...
90
Bernoulli's Equation for Flow Normal to a Streamline
1.4K
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...
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...
1.4K
Couette Flow
1.3K
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...
1.3K
Blood Flow
77.5K
Blood is pumped by the heart into the aorta, the largest artery in the body, and then into increasingly smaller arteries, arterioles, and capillaries. The velocity of blood flow decreases with increased cross-sectional blood vessel area. As blood returns to the heart through venules and veins, its velocity increases. The movement of blood is encouraged by smooth muscle in the vessel walls, the movement of skeletal muscle surrounding the vessels, and one-way valves that prevent backflow.
77.5K

