Pascal Second Converter
Convert Pascal Second to Pound Force Second Sq Inch 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.
Pound Force Second per Square Inchlbf·s/in²
Target UnitThe pound force second per square inch (lbf·s/in²) is a unit of dynamic viscosity in the imperial measurement system, quantifying the internal resistance of a fluid to flow. It expresses how much force in pounds applied over a specific area in square inches affects the movement of a fluid over time in seconds. This measurement is crucial in various engineering applications, particularly in fluid dynamics, where understanding the viscosity of fluids impacts design and performance.
Current Use
The pound force second per square inch is widely utilized in various industries, including automotive, aerospace, and manufacturing, to quantify the viscosity of oils and other fluids. Engineers rely on this unit for designing systems that involve fluid flow, such as hydraulics and lubrication systems, ensuring efficiency and safety in their operations. Its usage is prevalent in the United States and regions that still rely on the imperial measurement system, making it a standard reference in engineering documentation and specifications.
Fun Fact
The viscosity of a fluid can change with temperature; for instance, heating oil decreases its viscosity, allowing it to flow more easily.
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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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🔗 Related Units
Pound Force Second per Square Inch
viscosity • Non-SI
Definition
The pound force second per square inch (lbf·s/in²) is a unit of dynamic viscosity in the imperial measurement system, quantifying the internal resistance of a fluid to flow. It expresses how much force in pounds applied over a specific area in square inches affects the movement of a fluid over time in seconds. This measurement is crucial in various engineering applications, particularly in fluid dynamics, where understanding the viscosity of fluids impacts design and performance.
History & Origin
The pound force second per square inch originated from the need to quantify viscosity using familiar imperial units. As engineering and fluid dynamics evolved, the necessity for a measurable representation of fluid resistance became apparent, leading to the formalization of this unit in the 20th century. It was influenced by earlier measurements of viscosity that relied on the metric system, such as the poise.
Etymology: The term 'pound' is derived from the Latin 'pondus', meaning weight, while 'force' indicates the push or pull on an object. 'Second' comes from the Latin 'secunda', meaning second in order, and 'square inch' refers to the area measurement derived from the inch, which has its roots in the Old French 'inch' and Latin 'uncia'.
Current Use
The pound force second per square inch is widely utilized in various industries, including automotive, aerospace, and manufacturing, to quantify the viscosity of oils and other fluids. Engineers rely on this unit for designing systems that involve fluid flow, such as hydraulics and lubrication systems, ensuring efficiency and safety in their operations. Its usage is prevalent in the United States and regions that still rely on the imperial measurement system, making it a standard reference in engineering documentation and specifications.
💡 Fun Facts
- •The viscosity of a fluid can change with temperature; for instance, heating oil decreases its viscosity, allowing it to flow more easily.
- •In the early 1800s, Sir Isaac Newton first formulated the concept of viscosity, leading to the establishment of Newtonian fluid dynamics.
- •The viscosity of honey is approximately 2000 lbf·s/in², making it significantly more viscous than water.
📏 Real-World Examples
🔗 Related Units
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Frequently Asked Questions
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