Metal bolts are found in almost every steel structure today, holding our buildings, bridges, railways and so much more together. Not all bolts are created equal, however. Different bolts will serve different purposes and be more useful than others as structures are subjected to varying loads. We’ll look at a few comparisons between two very …
Inherently, turbulent flow will always be unsteady. It has random fluctuations in speed, kinetic energy, temperature and more, that make perfectly tracking it an impossible task. However, with that said, turbulent flow may be considered statistically steady in practice, for certain flow situations. Is Turbulent Flow Steady or Unsteady? Turbulence in considered to be fundamentally …
Hydraulic fluid, a type of oil, is not necessarily a static substance that will always react in the same way. Like most other substances, hydraulic fluids can change and shift, have impurities mixed in, and be exposed to a wide range of external temperatures and in pressures. So, while in practice and in most considerations …
In a system, damping explains how quickly the system will return to a state of rest after some external force has acted upon it. For example, in control systems, the goal is often to stop a system from spinning or vibrating. The damping ratio expresses that response as a ratio between the actual damping of …
Thermal diffusivity is the measure of how fast heat spreads through a given material. It is essentially how fast and effectively a material can conduct heat after considering the stored heat. There are a few ways to describe thermal diffusivity, so let’s get into them. What Does Thermal Diffusivity Tell Us? Thermal diffusivity can be …
Torsional rigidity is defined as how much an object of specified material resists twisting force, also known as torque. It is based on both the material of the object, as well as its shape. What Is Torsional Rigidity? Torsion, also known as twist or torque, occurs when a force is applied to rotate an object. …
Fluid pressure and flow rate are important considerations when designing a pipe system. In ideal circumstances, there would be no loss of energy within the system to affect the pressure and flow rate. However, in real applications engineers must consider energy lost due to frictional resistance, which is typically referred to as “head loss.” To …
The Bernoulli Equation is one of fluid mechanic’s classic equations, used for hundreds of years to calculate idealized flows. The equation is essentially an application of the law of conservation of energy, used to track pressure and flow changes. However, because of the viscous, unsteady, and irreversible nature of turbulent flows, Bernoulli’s equation is largely …
Can Bernoulli’s Equation be Used for Turbulent Flow? Read More »
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