Credit: Jeffrey Gelens (Flickr: Jeffrey & Mami)
Source: http://www.flickr.com/photos/jgelens/869149193/
License: CC BY-NC 3.0
Fluid dynamics is the study of how liquids act. Instead of working with distinct objects, we must look at how the fluid behaves as a unit - including pressure, density, and motion.
Chapter Outline
- 12.1. Pressure in Fluids
- 12.2. Measuring Pressure
- 12.3. Pascal’s Law
- 12.4. Archimedes’ Law
- 12.5. Bernoulli's Law
Chapter Summary
- Pressure is defined as
- Density is defined as the ratio of mass to volume
- Pascal’s Principle: A confined incompressible fluid under pressure will transmit that pressure equally throughout the system. . The mathematical relationship that follows from Pascal’s principle shows how the application of a force in one part of the system can be multiplied in another part of the system.
- Archimedes' Principle: The buoyant force on a submerged or partially submerged object is equal to the weight of fluid it displaces.
- Bernoulli’s Principle: At those points in space where the velocity of a fluid is high, the pressure is low, and at those points in space where the velocity of a fluid is low, the pressure is high.
The mathematical equation that Bernoulli derived based on this principle is stated below.
Bernoulli’s Equation:
Image Attributions
- [1]^ Credit: Jeffrey Gelens (Flickr: Jeffrey & Mami); Source: http://www.flickr.com/photos/jgelens/869149193/; License: CC BY-NC 3.0
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Description
Covers pressure, density, Pascal’s Principle, Archimedes' Principle, and Bernoulli’s Principle.
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Date Created:
Jun 27, 2013Last Modified:
May 22, 2014
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