Pascal Second Converter
Convert Pascal Second to Square Millimeter Second 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.
Square Millimeter Secondmm²·s
Target UnitThe square millimeter second (mm²·s) is a unit of kinematic viscosity, which measures a fluid's resistance to flow under the influence of gravity. Specifically, it evaluates the ratio of dynamic viscosity (in pascal-seconds) to fluid density (in kilograms per cubic meter). This unit is essential in fields such as fluid mechanics and engineering, where understanding the flow characteristics of fluids is crucial. A fluid with a higher kinematic viscosity will flow slower compared to one with a lower value, influencing design and operational parameters in various applications.
Current Use
The square millimeter second is widely employed in engineering, manufacturing, and research to assess the flow properties of liquids and gases. Industries such as automotive, aerospace, and food processing utilize this unit to determine the suitability of fluids for various applications, such as lubrication and hydraulic systems. It is also important in the formulation of paints, inks, and other coatings, where precise viscosity control is critical for performance.
Fun Fact
The square millimeter second is often confused with the pascal-second, but they measure different aspects of fluid behavior.
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📐Conversion Formula
= × 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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Square Millimeter Second
viscosity • Non-SI
Definition
The square millimeter second (mm²·s) is a unit of kinematic viscosity, which measures a fluid's resistance to flow under the influence of gravity. Specifically, it evaluates the ratio of dynamic viscosity (in pascal-seconds) to fluid density (in kilograms per cubic meter). This unit is essential in fields such as fluid mechanics and engineering, where understanding the flow characteristics of fluids is crucial. A fluid with a higher kinematic viscosity will flow slower compared to one with a lower value, influencing design and operational parameters in various applications.
History & Origin
The concept of viscosity dates back to the early studies of fluid dynamics in the 17th century. However, the formal adoption of specific units like mm²·s emerged in the late 19th and early 20th centuries as fluid mechanics became a more rigorous scientific discipline. The square millimeter second became prevalent as a practical measure for kinematic viscosity, particularly in industrial applications.
Etymology: The term 'viscosity' is derived from the Latin word 'viscosus', meaning 'sticky'. The 'square millimeter' part of the unit denotes the area through which the fluid flows, while 'second' reflects the time component involved in the measurement.
Current Use
The square millimeter second is widely employed in engineering, manufacturing, and research to assess the flow properties of liquids and gases. Industries such as automotive, aerospace, and food processing utilize this unit to determine the suitability of fluids for various applications, such as lubrication and hydraulic systems. It is also important in the formulation of paints, inks, and other coatings, where precise viscosity control is critical for performance.
💡 Fun Facts
- •The square millimeter second is often confused with the pascal-second, but they measure different aspects of fluid behavior.
- •Kinematic viscosity is temperature-dependent; fluids generally become less viscous as temperature increases.
- •The viscosity of water at 20°C is approximately 1 mm²·s, making it a common reference point for viscosity measurements.
📏 Real-World Examples
🔗 Related Units
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Frequently Asked Questions
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