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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.

Design Example: Creating a Hydraulic Model of a Dam Spillway

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Major Losses in Pipes

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Fluid flow can be classified as laminar or turbulent, primarily based on the Reynolds number. This dimensionless number reflects the relative influence of inertial to viscous...

Steady, Laminar Flow Between Parallel Plates

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.

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Related Experiment Video

Updated: Jan 14, 2026

A Coupled Experiment-finite Element Modeling Methodology for Assessing High Strain Rate Mechanical Response of Soft Biomaterials

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Finite Strain Modelling for Multiphase Flow in Dual Scale Porous Media During Resin Infusion Process.

¹Lightweight Manufacturing Centre (LMC), University of Strathclyde, Block E, Westway Business Park, Porterfield Road, Renfrew, PA4 8DJ UK.

Journal of Engineering Mathematics

|October 27, 2025

Summary

This summary is machine-generated.

This study presents a new modeling framework for resin infusion processes, crucial for manufacturing large composite parts. It addresses challenges like flow fronts and air entrapment in porous preforms.

Keywords:

Composite manufacturing Constitutive modelling Dual scale porosity Finite strain deformation Fluid–solid interaction Multiphase flow

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Area of Science:

Materials Science
Chemical Engineering
Mechanical Engineering

Background:

Resin infusion is a key composite manufacturing process driven by pressure gradients.
Challenges exist in designing infusion systems for large-scale components like aircraft parts and wind turbine blades.
Concerns include managing resin flow fronts and preventing air bubble entrapment during manufacturing.

Purpose of the Study:

To propose a novel modeling framework for multiphase flow (resin and air) in dual-scale porous media.
To address critical issues of flow front prediction and air entrapment in resin infusion.
To enhance the fidelity of finite element modeling for composite manufacturing.

Main Methods:

Development of a modeling framework for multiphase flow in composite preforms.
Application of a finite strain formulation to describe fluid-solid interaction.
Utilizing averaging and first-principle methods to bridge micro- and macro-scale observations.

Main Results:

A high-fidelity finite element modeling approach for resin infusion processes.
Improved understanding and prediction of resin flow behavior in porous preforms.
A framework that connects microscopic phenomena to macroscopic manufacturing outcomes.

Conclusions:

The proposed modeling framework effectively addresses challenges in resin infusion.
This work provides new insights into fluid-solid interactions in composite manufacturing.
The study advances the capability for high-fidelity finite element modeling in this field.