fluid-property-calculator

Estimate fluid properties from temperature using empirical correlations.

45|14|Updated Nov 7, 2025
One-click install
npx skills add https://github.com/Soljourner/claude-engineering-skills --skill fluid-property-calculator
Or copy as Structured Prompt for Agent▼
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Skill: fluid-property-calculator
Source: https://github.com/Soljourner/claude-engineering-skills/tree/main/skills/helpers/fluid-property-calculator
Command: npx skills add https://github.com/Soljourner/claude-engineering-skills --skill fluid-property-calculator

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Fluid Property Calculator provides quick, offline estimates of fluid properties using well-established empirical correlations, avoiding the need for external databases.

Core Features & Use Cases

  • Quick property estimates for water and air (density, viscosity, thermal conductivity, etc.), plus vapor pressure and ideal gas properties.
  • Useful for preliminary design, thermal-hydraulic analyses, and educational tasks when data sources are unavailable.
  • Real-world usage: determine water density and viscosity at 20°C to feed a pipe-flow calculation or Reynolds-number checks in early designs.

Quick Start

Call water_properties(temperature_C) to obtain all water properties at that temperature.

Frequently Asked Questions about fluid-property-calculator

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I calculate water density and viscosity from temperature without a database?▼

Calculate water density and viscosity offline by calling water_properties(temperature_C), which applies empirical polynomials to return thermal properties without requiring any external database connection.

What's the best way to estimate air properties for thermal-hydraulic analysis?▼

Estimate air properties for thermal-hydraulic analysis by using air_properties(T, P), which applies Sutherland and other empirical correlations to derive density and viscosity from temperature and pressure inputs.

Can I get fluid property estimates offline for preliminary design tasks?▼

Get offline fluid property estimates for preliminary design by applying built-in empirical correlations like Vogel and Antoine, which output rapid viscosity and vapor pressure values without external dependencies.

Does the fluid property calculator support vapor pressure and ideal gas calculations?▼

The fluid property calculator supports vapor pressure and ideal gas calculations by exposing gas_properties(gas, T, P), utilizing Antoine equations and related correlations to estimate properties for various gases.

What empirical correlations are used for estimating fluid properties?▼

Empirical correlations for estimating fluid properties include polynomials for water, Sutherland for air viscosity, Vogel for liquid viscosity, and Antoine for vapor pressure, ensuring rapid database-free property generation.

Can I use these fluid property estimates for Reynolds number checks in pipe flow?▼

Use these fluid property estimates for Reynolds number checks in pipe flow by extracting density and viscosity values from water_properties or air_properties, feeding them directly into your hydrodynamic calculations.