Pascal Second Converter
Convert Pascal Second to Microstokes and more • 56 conversions
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Unit Explanations
Pascal SecondPa·s
Source UnitThe pascal second (Pa·s) is the SI unit for dynamic viscosity, representing the internal friction of fluids. It quantifies the resistance of a fluid to flow when an external force is applied. A fluid with a dynamic viscosity of one pascal second will flow under a shear stress of one pascal at a rate of one meter per second. It is a derived unit, meaning it is defined in terms of the base SI units: kilograms (kg), meters (m), and seconds (s). The pascal second is critical in fluid dynamics, engineering, and various scientific disciplines where fluid behavior is studied.
Current Use
Today, the pascal second is widely used in various industries including chemical engineering, food processing, and materials science to characterize the flow properties of fluids. It is essential in applications involving lubrication, mixing, and fluid transport where understanding viscosity is crucial for efficiency and safety.
Fun Fact
The pascal second is named after Blaise Pascal, who also has the unit of pressure named after him.
MicrostokesµSt
Target UnitThe microstokes (µSt) is a unit of kinematic viscosity, which quantifies a fluid's resistance to flow. Specifically, it is defined as one millionth of a stoke (St), where one stoke is equivalent to 1 cm²/s. Kinematic viscosity is the dynamic viscosity divided by the fluid density, and it is essential for understanding fluid behavior in various applications, including engineering, meteorology, and hydraulics. In practical terms, microstokes are commonly used to describe the viscosity of lubricants, fuels, and other liquids, providing a precise measurement of how they flow under gravitational influence.
Current Use
Microstokes are extensively used in various industries that require precise viscosity measurements. They are particularly important in the petroleum industry for analyzing lubricants, oils, and fuels. Additionally, the food and beverage industry utilizes microstokes for quality control of liquid products. In pharmaceuticals, accurate viscosity measurements are crucial for drug formulation and delivery. Countries with significant manufacturing sectors, such as the United States, Germany, and Japan, commonly apply microstokes in their engineering and quality assurance processes.
Fun Fact
The stoke was named in honor of Sir George Gabriel Stokes, who formulated Stokes' Law describing the motion of spheres in a viscous fluid.
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= × 1.00000How to Convert
To convert to , multiply the value by 1.00000. This conversion factor represents the ratio between these two units.
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Pascal Second
viscosity • Non-SI
Definition
The pascal second (Pa·s) is the SI unit for dynamic viscosity, representing the internal friction of fluids. It quantifies the resistance of a fluid to flow when an external force is applied. A fluid with a dynamic viscosity of one pascal second will flow under a shear stress of one pascal at a rate of one meter per second. It is a derived unit, meaning it is defined in terms of the base SI units: kilograms (kg), meters (m), and seconds (s). The pascal second is critical in fluid dynamics, engineering, and various scientific disciplines where fluid behavior is studied.
History & Origin
The pascal second was introduced as part of the metric system in the late 20th century, named after Blaise Pascal, a French mathematician and physicist known for his contributions to fluid mechanics and pressure. The unit was formalized in 1971 during the 14th General Conference on Weights and Measures, which aimed to standardize units for scientific accuracy and international communication.
Etymology: The term 'pascal' is derived from the name of Blaise Pascal, while 'second' refers to the time unit in the SI system.
Current Use
Today, the pascal second is widely used in various industries including chemical engineering, food processing, and materials science to characterize the flow properties of fluids. It is essential in applications involving lubrication, mixing, and fluid transport where understanding viscosity is crucial for efficiency and safety.
💡 Fun Facts
- •The pascal second is named after Blaise Pascal, who also has the unit of pressure named after him.
- •Dynamic viscosity can change with temperature; for example, heating honey makes it flow more easily.
- •The viscosity of air is significantly lower than that of most liquids, making it easier for objects to move through it.
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🔗 Related Units
Microstokes
viscosity • Non-SI
Definition
The microstokes (µSt) is a unit of kinematic viscosity, which quantifies a fluid's resistance to flow. Specifically, it is defined as one millionth of a stoke (St), where one stoke is equivalent to 1 cm²/s. Kinematic viscosity is the dynamic viscosity divided by the fluid density, and it is essential for understanding fluid behavior in various applications, including engineering, meteorology, and hydraulics. In practical terms, microstokes are commonly used to describe the viscosity of lubricants, fuels, and other liquids, providing a precise measurement of how they flow under gravitational influence.
History & Origin
The stoke was named after Sir George Gabriel Stokes, a 19th-century physicist who made significant contributions to fluid mechanics. The microstokes unit emerged alongside the standardization of viscosity measurements in the early 20th century, when scientists and engineers needed more precise sub-units to quantify the kinematic viscosity of various liquids. This led to the adoption of the microstokes to facilitate more granular measurements in laboratory and industrial settings, particularly for light oils and fuels, which often exhibit very low viscosities.
Etymology: The term 'micro' derives from the Greek 'mikros', meaning small, and 'stokes' refers to Sir George Stokes. Together, they indicate a small unit related to viscosity.
Current Use
Microstokes are extensively used in various industries that require precise viscosity measurements. They are particularly important in the petroleum industry for analyzing lubricants, oils, and fuels. Additionally, the food and beverage industry utilizes microstokes for quality control of liquid products. In pharmaceuticals, accurate viscosity measurements are crucial for drug formulation and delivery. Countries with significant manufacturing sectors, such as the United States, Germany, and Japan, commonly apply microstokes in their engineering and quality assurance processes.
💡 Fun Facts
- •The stoke was named in honor of Sir George Gabriel Stokes, who formulated Stokes' Law describing the motion of spheres in a viscous fluid.
- •Microstokes are used in the aerospace industry to evaluate the viscosity of rocket fuels and lubricants under extreme conditions.
- •Fluid viscosity can change with temperature; for example, heating oil reduces its viscosity, making it flow more easily.
📏 Real-World Examples
🔗 Related Units
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