Pascal Second Converter
Convert Pascal Second to Poundal Second Square Foot 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.
Poundal Second Square Footpdl·s·ft²
Target UnitThe poundal second square foot (pdl·s·ft²) is a unit of dynamic viscosity in the foot-pound-second (FPS) system. It quantifies the internal friction of a fluid, indicating its resistance to flow. One poundal second square foot is defined as the viscosity of a fluid that exerts a shear stress of one poundal per square foot when the velocity gradient is one foot per second. This unit is used primarily in the study of fluid dynamics and engineering applications, where traditional SI units may not be preferred.
Current Use
Today, the poundal second square foot is primarily utilized in certain engineering applications, particularly in industries where fluid flow and viscosity are critical factors. This includes civil engineering, mechanical engineering, and hydrodynamics. While the SI unit of pascal second (Pa·s) is more commonly used, the poundal second square foot finds its application in specific contexts, especially in regions that still adhere to the FPS system for calculating fluid properties.
Fun Fact
The poundal is less commonly used than the more familiar pound-force, which can lead to confusion in some contexts.
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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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Poundal Second Square Foot
viscosity • Non-SI
Definition
The poundal second square foot (pdl·s·ft²) is a unit of dynamic viscosity in the foot-pound-second (FPS) system. It quantifies the internal friction of a fluid, indicating its resistance to flow. One poundal second square foot is defined as the viscosity of a fluid that exerts a shear stress of one poundal per square foot when the velocity gradient is one foot per second. This unit is used primarily in the study of fluid dynamics and engineering applications, where traditional SI units may not be preferred.
History & Origin
The poundal second square foot originated in the early 20th century as part of the foot-pound-second system, which was developed to provide a coherent system of units for mechanics in the imperial system. The concept of dynamic viscosity was first introduced by Sir Isaac Newton in the 17th century, who described it in terms of shear stress and velocity gradients. The term 'poundal' was later coined by British physicists, referring to the force required to accelerate a one-pound mass at one foot per second squared, further establishing the relationship between force, mass, and acceleration within this system.
Etymology: The term 'poundal' derives from the combination of 'pound' (a unit of force) and 'dal' (a suffix indicating measurement), while 'second' refers to time and 'square foot' signifies area.
Current Use
Today, the poundal second square foot is primarily utilized in certain engineering applications, particularly in industries where fluid flow and viscosity are critical factors. This includes civil engineering, mechanical engineering, and hydrodynamics. While the SI unit of pascal second (Pa·s) is more commonly used, the poundal second square foot finds its application in specific contexts, especially in regions that still adhere to the FPS system for calculating fluid properties.
💡 Fun Facts
- •The poundal is less commonly used than the more familiar pound-force, which can lead to confusion in some contexts.
- •In the FPS system, the poundal is a more precise measure of force compared to the pound-force, as it is derived from fundamental units.
- •Dynamic viscosity can change significantly with temperature, making the specific viscosity value context-dependent.
📏 Real-World Examples
🔗 Related Units
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Explore more viscosity conversions for your calculations.
Frequently Asked Questions
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