Home
Back
Stanton Number Formula:
| From: | To: |
The Stanton Number is a dimensionless number that measures the ratio of heat transferred into a fluid to the thermal capacity of the fluid. It's particularly useful in heat transfer analysis for turbulent flow conditions.
The calculator uses the Stanton Number formula:
Where:
Explanation: This formula establishes the relationship between heat transfer (Stanton Number) and fluid friction (Fanning Friction Factor) for turbulent flow in tubes.
Details: The Stanton Number is crucial for analyzing convective heat transfer in fluid systems. It helps engineers design efficient heat exchangers, cooling systems, and other thermal management equipment by relating heat transfer characteristics to fluid flow properties.
Tips: Enter the Fanning Friction Factor value. The value must be positive and greater than zero. The calculator will compute the corresponding Stanton Number.
Q1: What is the range of typical Stanton Number values?
A: Stanton Number values typically range from 0.001 to 0.01 for most engineering applications, depending on the flow conditions and fluid properties.
Q2: How does Stanton Number relate to other dimensionless numbers?
A: Stanton Number can be expressed as St = Nu/(Re·Pr), where Nu is Nusselt Number, Re is Reynolds Number, and Pr is Prandtl Number.
Q3: When is this formula applicable?
A: This specific formula (St = f/8) is particularly applicable for turbulent flow in smooth tubes and is derived from the Reynolds analogy.
Q4: What are the limitations of this formula?
A: The formula assumes fully developed turbulent flow and may not be accurate for laminar flow, transitional flow, or flows with significant roughness effects.
Q5: How is Fanning Friction Factor determined experimentally?
A: Fanning Friction Factor can be determined from pressure drop measurements in pipe flow experiments or calculated using empirical correlations based on Reynolds Number.