SpinOffs

A blog on what's new, notable, and next in turbomachinery

Posts about fluid mechanics

The Ultimate Fluid Model: Non-Equilibrium Modeling

The Ultimate Fluid Model: Non-Equilibrium Modeling

By Mark R. Anderson
May 24, 2019

In this blog series, I covered a lot of thermo-fluid options in engineering analysis, from the simplest perfect gas (When Perfect is Good Enough – Perfect Gas Models) and ideal liquid, (Fluid...

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Fluid Modeling: Liquified

Fluid Modeling: Liquified

By Mark R. Anderson
May 10, 2019

Continuing on the topic from my previous blog, Getting Real – Advanced Real Gas Models, the counterpart to the perfect gas model for liquids is the “ideal liquid” model.  The ideal liquid model is...

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Getting Real – Advanced Real Gas Models

Getting Real – Advanced Real Gas Models

By Mark R. Anderson
May 3, 2019

The Refprop program The calculations in the National Institute of Standards and Technology (NIST) Refprop program are generally considered the most accurate thermo-fluid models available.  The...

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Going Through a Phase – Modeling Phase Change with Cubics

Going Through a Phase – Modeling Phase Change with Cubics

By Mark R. Anderson
Apr 26, 2019

When fluids undergo a phase change (see Phase Change - Make Mine a Double), it typically has a very significant effect of the flow behavior and energy level of the system.  Some examples of this are:...

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Simple Stall - Video Blog - Part 2

Simple Stall - Video Blog - Part 2

By Mark R. Anderson
Apr 12, 2019

Our CTO, Mark Anderson, takes a fundamental look at simple stall and its impact on turbochargers stability and range. This is the second video in this 2-part series. Be sure to watch Part 1 first!

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Performance Corrections for Compressor Maps

Performance Corrections for Compressor Maps

By Mark R. Anderson
Apr 9, 2019

Turbomachinery performance is almost always analyzed and tested with a fixed inflow condition. In other words, the assumption is that the inflow fluid temperature and pressure is defined and...

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Simple Stall - Video Blog - Part 1

Simple Stall - Video Blog - Part 1

By Mark R. Anderson
Apr 5, 2019

Our CTO, Mark Anderson, takes a fundamental look at simple stall and its impact on turbochargers stability and range. This is the first video in this 2-part series. 

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Water & Turbomachinery - Two Great Things, That Go Great Together

Water & Turbomachinery - Two Great Things, That Go Great Together

By Andrew Provo
Mar 22, 2019

I work with water a lot here at Concepts NREC. Water is frequently the fluid that flows through various types of rotating equipment we design to either release or store energy. Mankind’s fascination...

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What's Better than Perfect? Semi-Perfect Gas Models

What's Better than Perfect? Semi-Perfect Gas Models

By Mark R. Anderson
Mar 8, 2019

In a previous blog, Fluid Phenomena Primer: Energy Versus Temperature, Specific Heat, I explained the behavior for gas phase fluids and how the temperature is affected at high energy levels.  In...

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Phase Change - Make Mine a Double!

Phase Change - Make Mine a Double!

By Mark R. Anderson
Feb 22, 2019

As I’ve always said, there’s as much thermodynamics in a glass of beer, as there is in a power plant. Don't believe me? Read on. Phase change is common phenomena that we see all the time.  We’re most...

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When Perfect is Good Enough - Perfect Gas Models

When Perfect is Good Enough - Perfect Gas Models

By Mark R. Anderson
Feb 15, 2019

What is a perfect gas? A perfect gas is one that has a linear variation in energy with respect to temperature and a linear variation in pressure with respect to temperature at constant volume. The...

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