Home Back

Loss Of Pressure Head For Viscous Flow Between Two Parallel Plates Calculator

Formula Used:

\[ h_f = \frac{12 \times \mu \times V \times L}{\rho \times [g] \times t^2} \]

Pa·s
m/s
m
kg/m³
m

Unit Converter ▲

Unit Converter ▼

From: To:

1. What is Loss of Peizometric Head?

The Loss of Peizometric Head is considered in the viscous flow through circular pipe. It represents the energy loss due to viscous effects when fluid flows between two parallel plates or through narrow passages.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ h_f = \frac{12 \times \mu \times V \times L}{\rho \times [g] \times t^2} \]

Where:

Explanation: This formula calculates the head loss due to viscous flow between two parallel plates, considering fluid properties and geometric parameters.

3. Importance of Pressure Head Calculation

Details: Accurate calculation of pressure head loss is crucial for designing hydraulic systems, predicting flow behavior, and ensuring proper system performance in various engineering applications involving viscous flows.

4. Using the Calculator

Tips: Enter all values in appropriate SI units. Viscosity in Pa·s, velocity in m/s, length in meters, density in kg/m³, and thickness in meters. All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What is peizometric head?
A: Peizometric head represents the sum of pressure head and elevation head at a point in a fluid flow system, indicating the total energy per unit weight of fluid.

Q2: When is this formula applicable?
A: This formula is specifically applicable for viscous flow between two parallel plates or in narrow passages where the flow is laminar and fully developed.

Q3: What are typical viscosity values for common fluids?
A: Water at 20°C: ~0.001 Pa·s, Engine oil: 0.1-0.3 Pa·s, Honey: ~10 Pa·s, Air: ~0.000018 Pa·s.

Q4: How does film thickness affect head loss?
A: Head loss is inversely proportional to the square of film thickness. Smaller clearances result in significantly higher head losses due to increased viscous effects.

Q5: What are the limitations of this formula?
A: This formula assumes laminar flow, Newtonian fluid behavior, constant properties, and fully developed flow between parallel plates.

Loss Of Pressure Head For Viscous Flow Between Two Parallel Plates Calculator© - All Rights Reserved 2025