Fluid Mechanics Analysis
Fluid Mechanics Analysis - Related Videos
01:15
Dimensionless Groups in Fluid Mechanics
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2025
Dimensionless groups in fluid mechanics provide simplified ratios that help analyze fluid behavior without relying on specific units. The Reynolds number (Re), which represents the ratio of inertial to viscous forces, distinguishes between laminar and turbulent flows, making it essential in the design of pipelines and aerodynamic surfaces. The Froude number (Fr), the ratio of inertial to gravitational forces, is particularly useful in predicting wave formation and hydraulic jumps in...
07:51
Synovial Fluid Analysis to Identify Osteoarthritis
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Cited by 6 •
2022
Synovial fluid analysis under transmitted, polarized, and compensated light microscopy is used to evaluate the inflammatory or non-inflammatory nature of a sample through simple steps. It is particularly useful in osteoarthritis to detect calcium crystals and identify a more severe subset of osteoarthritis.
08:58
Atomic Force Microscopy Cantilever-Based Nanoindentation: Mechanical Property Measurements at the Nanoscale in Air and Fluid
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Cited by 11 •
2022
Quantifying the contact area and force applied by an atomic force microscope (AFM) probe tip to a sample surface enables nanoscale mechanical property determination. Best practices to implement AFM cantilever-based nanoindentation in air or fluid on soft and hard samples to measure elastic modulus or other nanomechanical properties are discussed.
07:17
Evaluation of Fluid Overload by Bioelectrical Impedance Vectorial Analysis
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Cited by 1 •
2022
In this study, we demonstrate how to evaluate the presence of fluid overload through bioelectrical impedance vectorial analysis (BIVA) and the impedance ratio measured using tetrapolar multi-frequency equipment in patients admitted to the emergency department. BIVA and impedance ratio are reliable and useful tools to predict poor outcomes.
13:07
Optical Coherence Tomography Based Biomechanical Fluid-Structure Interaction Analysis of Coronary Atherosclerosis Progression
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Cited by 4 •
2022
There is a need to determine which atherosclerotic lesions will progress in the coronary vasculature to guide intervention before myocardial infarction occurs. This article outlines the biomechanical modeling of arteries from Optical Coherence Tomography using fluid-structure interaction techniques in a commercial finite element solver to help predict this progression.
FAQs
Conservation of mass connects the flow entering a system with the flow leaving it, while accounting for changes in density when conditions vary. Engineers use this relationship to evaluate internal flows and relate quantities such as velocity, density, and passage size. It provides a consistency check for models of pipelines, pumps, turbines, and other flow systems.
Viscosity characterizes a fluid’s resistance to deformation and influences how motion produces internal resistance and pressure losses. Pressure describes forces distributed within the fluid and can change as velocity, geometry, or flow conditions change. Considering both variables helps engineers assess performance and energy requirements in systems where fluid movement interacts with solid boundaries.
Momentum analysis relates fluid motion to forces, including the pressure forces associated with flow. Energy analysis connects variables such as pressure, velocity, density, and temperature under specified conditions. Used together, these principles help predict drag, pressure losses, and the performance of components such as pumps and turbines, rather than treating flow variables independently.
Analytical models describe fluid behavior through mathematical relationships and specified assumptions. Computational fluid dynamics evaluates those relationships numerically to study flow fields that may be difficult to solve directly, while experimental measurements provide observed data. Engineers can use these approaches to examine internal or external flows and compare predicted behavior with measured performance.
An analysis begins by identifying the flow system, selecting relevant variables, and specifying conditions such as pressure, velocity, density, viscosity, or temperature. Engineers then apply conservation of mass, momentum, and energy using an analytical, computational, or experimental approach. The resulting predictions or measurements can be examined for drag, losses, stability, turbulence, and system performance.
Engineers apply it when designing or optimizing systems in which moving liquids or gases affect efficiency, safety, or performance. Examples include pipelines, pumps, turbines, aircraft, automobiles, and environmental systems. Depending on the design question, the analysis can support predictions of pressure losses, drag, flow behavior, stability, or turbulence before or alongside performance evaluation.