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Capillary Action Microfluidic Filling Time (Lucas-Washburn) Calculator

Easily calculate and compute capillary action microfluidic filling time (lucas-washburn) calculator with accurate equations, live formulas, and expert guidance.

Calculated Result
0.65 s

Capillary Penetration Time (t_fill)

Capillary Penetration Time (t_fill)

0.65 s

Capillary Filling Time Sec

0.6455310771423356

Average Filling Velocity Mm S

46.473362882551335

Laplace Capillary Pressure Pa

2230.721418362464

Channel Length Mm

30

0.65 — s

Calculation Breakdown

  1. Applied FormulaCalculates the spontaneous passive capillary filling time (t in seconds) of microchannels and microgrooves using the classical Lucas-Washburn dynamic wetting equation.t = \frac{2 \mu L^2}{\gamma \cdot r \cdot \cos(\theta)}

Lucas-Washburn Capillary Filling Metric Output

Interactive visualization based on your current inputs

Calculated Value
0.00.30.50.81.0Capillary Penetration Time (t_fill)

What Is the Capillary Action Microfluidic Filling Time (Lucas-Washburn) Calculator?

The Capillary Action Microfluidic Filling Time (Lucas-Washburn) Calculator computes results using established domain formulas, verified conversion factors, and user-entered parameters.

How Does the Capillary Action Microfluidic Filling Time (Lucas-Washburn) Calculator Work?

Calculates the spontaneous passive capillary filling time (t in seconds) of microchannels and microgrooves using the classical Lucas-Washburn dynamic wetting equation.

Capillary Action Microfluidic Filling Time (Lucas-Washburn) Calculator Formula & Variables

The core mathematical equation utilized by this calculator is expressed as:

t=2μL2γ⋅r⋅cos⁡(θ)t = \frac{2 \mu L^2}{\gamma \cdot r \cdot \cos(\theta)}

Calculates the spontaneous passive capillary filling time (t in seconds) of microchannels and microgrooves using the classical Lucas-Washburn dynamic wetting equation.

How to Use the Capillary Action Microfluidic Filling Time (Lucas-Washburn) Calculator

  1. Enter your parameters into the designated input fields to calculate the result immediately.

Step-by-Step Example Calculation

Capillary Action Microfluidic Filling Time (Lucas-Washburn) Calculator Example

Input Values:

channelLengthMm:30
hydraulicRadiusUm:50
surfaceTensionMnM:72.8
contactAngleDeg:40
liquidViscosityCp:1
Worked Steps: Sample evaluation based on standard reference conditions.

Understanding Your Result

The calculated primary figure indicates the optimal or required s.

Factors That Affect the Result

  • Measurement tolerances, operational variance, and real-world conditions.

When Should You Use This Calculator?

  • Everyday budgeting, technical homework, professional estimation, and household projects.

Assumptions & Limitations

  • Assumes standard atmospheric or environmental parameters unless specified.

Frequently Asked Questions

Calculation Accuracy & Reference Note

Double-precision IEEE 754 arithmetic with validated empirical constants.

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