As we covered last episode, the Reynolds number is king among dimensionless numbers and measures the ratio of momentum forces to viscous forces in a fluid. And lastly we introduced a dimensionless number called Reynolds number which can be used to determine the flow regime a particular fluid flows in. We will discuss this in more detail later in this episode. We also noted that the calculation of pressure drop or more specifically the friction factor calculation will vary depending on the flow regime. Turbulent flow is the exact opposite to laminar, and transitional flow has elements of both laminar and turbulent flow. Laminar flow is where the fluid flows along in straight lines without much mixing, eddies or vortices. This led to a discussion of flow regimes, of which there are three, laminar, turbulent and transitional, with the flow pattern varying across the regimes. Then we went on to talk about a guy named Daniel Bernoulli, who aside from making his father insanely jealous, also developed an equation that describes the energy balance involved in hydraulics. First off we used some pseudo physics to demonstrate that pressure is a key variable in hydraulics as it provides the force to move a fluid from point A to point B. Okay before we get started let's quickly recap what we covered last episode. And this week we will continue our discussions on hydraulics, this time looking at calculating pressure drop in pipes. Welcome to the fourth episode of the Nutrium Podcast.
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