Poise Converter
Convert Poise to Square Millimeter Second and more • 56 conversions
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Unit Explanations
PoiseP
Source UnitThe poise (symbol: P) is a unit of dynamic viscosity in the centimeter-gram-second (CGS) system of units. It is defined as the viscosity of a fluid that exerts a shear stress of one dyne per square centimeter when a velocity gradient of one reciprocal second is applied. In essence, one poise corresponds to a viscosity of 1 g/(cm·s). This unit is particularly useful in fields involving fluid mechanics and rheology, where the flow properties of liquids are analyzed.
Current Use
The poise is commonly used in laboratories and industries that deal with fluid properties, such as food processing, pharmaceuticals, and materials science. It is particularly relevant for measuring the viscosity of non-Newtonian fluids and biological fluids, such as blood, where understanding flow behavior is crucial. While the SI unit pascal-second is preferred in many scientific contexts, the poise remains popular in specific applications.
Fun Fact
The poise was historically significant in the study of blood flow, influencing medical research and treatments.
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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Poise
viscosity • Non-SI
Definition
The poise (symbol: P) is a unit of dynamic viscosity in the centimeter-gram-second (CGS) system of units. It is defined as the viscosity of a fluid that exerts a shear stress of one dyne per square centimeter when a velocity gradient of one reciprocal second is applied. In essence, one poise corresponds to a viscosity of 1 g/(cm·s). This unit is particularly useful in fields involving fluid mechanics and rheology, where the flow properties of liquids are analyzed.
History & Origin
The poise was named after the French scientist Jean Louis Marie Poiseuille, who made significant contributions to the study of fluid dynamics in the 19th century. His work focused on the flow of liquids in tubes, and he is best known for deriving Poiseuille's law, which describes the laminar flow of incompressible fluids. The term was introduced in the 19th century and has been widely used in scientific literature since then, particularly in relation to the study of blood viscosity and other biological fluids.
Etymology: The term 'poise' is derived from the surname of Jean Louis Marie Poiseuille, reflecting his foundational work in fluid dynamics.
Current Use
The poise is commonly used in laboratories and industries that deal with fluid properties, such as food processing, pharmaceuticals, and materials science. It is particularly relevant for measuring the viscosity of non-Newtonian fluids and biological fluids, such as blood, where understanding flow behavior is crucial. While the SI unit pascal-second is preferred in many scientific contexts, the poise remains popular in specific applications.
💡 Fun Facts
- •The poise was historically significant in the study of blood flow, influencing medical research and treatments.
- •One poise is equivalent to 0.1 pascal-seconds, showing the relationship between CGS and SI units.
- •The term 'centipoise' (cP) is commonly used in industries, where 1 P equals 100 cP, making it easier to express lower viscosities.
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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.
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🔗 Related Units
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