Pascal Second Converter
Convert Pascal Second to Decistokes 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.
DecistokesdSt
Target UnitDecistokes (dSt) is a unit of kinematic viscosity, representing the ratio of dynamic viscosity (in pascal-seconds) to fluid density (in kilograms per cubic meter). One decistoke is defined as one-tenth of a stoke, which is the viscosity of a fluid that allows a sphere of 1 cm diameter to fall under gravity at a rate of 1 cm/s in standard conditions. The stoke is a non-SI unit, but decistokes are widely used in various industries, especially in the context of lubricants and fuel oils where precise viscosity measurement is crucial.
Current Use
Decistokes are commonly used in various industries for measuring the kinematic viscosity of fluids. They are particularly prevalent in the petroleum industry for analyzing lubricants and fuels, where precise viscosity is essential for performance and safety. Additionally, decistokes are employed in food processing and chemical manufacturing, where fluid properties impact the quality and consistency of products. Laboratories and quality control processes utilize decistokes to ensure compliance with specifications and standards.
Fun Fact
The stoke is named after Sir George Gabriel Stokes, who formulated the Stokes' law of viscosity.
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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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Decistokes
viscosity • Non-SI
Definition
Decistokes (dSt) is a unit of kinematic viscosity, representing the ratio of dynamic viscosity (in pascal-seconds) to fluid density (in kilograms per cubic meter). One decistoke is defined as one-tenth of a stoke, which is the viscosity of a fluid that allows a sphere of 1 cm diameter to fall under gravity at a rate of 1 cm/s in standard conditions. The stoke is a non-SI unit, but decistokes are widely used in various industries, especially in the context of lubricants and fuel oils where precise viscosity measurement is crucial.
History & Origin
The concept of viscosity dates back to the early 18th century when scientists like Sir Isaac Newton began studying the flow of liquids. The stoke was named after the British engineer Sir George Gabriel Stokes, who contributed significantly to fluid dynamics in the 19th century. The decistoke, being a subdivision of the stoke, emerged as a more practical unit for measuring lower viscosities in various industrial applications, allowing for more precise measurements that cater to specific fluid characteristics.
Etymology: The term 'decistoke' combines the prefix 'deci-', meaning one-tenth, with 'stoke', derived from the name of Sir George Gabriel Stokes.
Current Use
Decistokes are commonly used in various industries for measuring the kinematic viscosity of fluids. They are particularly prevalent in the petroleum industry for analyzing lubricants and fuels, where precise viscosity is essential for performance and safety. Additionally, decistokes are employed in food processing and chemical manufacturing, where fluid properties impact the quality and consistency of products. Laboratories and quality control processes utilize decistokes to ensure compliance with specifications and standards.
💡 Fun Facts
- •The stoke is named after Sir George Gabriel Stokes, who formulated the Stokes' law of viscosity.
- •Decistokes are often used in laboratory settings to ensure accurate measurements of fluid properties.
- •In some contexts, the viscosity of fluids can be temperature-dependent, influencing their behavior in various applications.
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