https://github.com/htofi/isadata.jl

A Julia package to calculate International Standard Atmosphere data
https://github.com/htofi/isadata.jl

atmosphere julia

Last synced: 4 months ago
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A Julia package to calculate International Standard Atmosphere data

• Host: GitHub
• URL: https://github.com/htofi/isadata.jl
• Owner: HTofi
• License: other
• Created: 2020-05-17T12:58:35.000Z (about 6 years ago)
• Default Branch: master
• Last Pushed: 2021-01-24T23:28:51.000Z (over 5 years ago)
• Last Synced: 2025-11-21T12:15:49.066Z (7 months ago)
• Topics: atmosphere, julia
• Language: Julia
• Homepage:
• Size: 21.5 KB
• Stars: 3
• Watchers: 1
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
# ISAData

[![Build Status](https://travis-ci.com/HTofi/ISAData.jl.svg?branch=master)](https://travis-ci.com/HTofi/ISAData.jl)  [![codecov.io](http://codecov.io/github/HTofi/ISAData.jl/coverage.svg?branch=master)](http://codecov.io/github/HTofi/ISAData.jl?branch=master)

ISAData is a Julia package that can be used to calculate thermodynamic properties of air (density, pressure, temperature, and viscosity) at a certain altitude in the atmosphere  using the **I**nternational **S**tandard **A**tmosphere (ISA) model.

## Installation

ISAData can be installed from Julia's REPL with the following command:

```

]add ISAData

```

## Usage

The package contains only one exported function called `ISAdata`. The function is called with the altitude as the input parameter, and it returns a tuple containing the values for density, pressure, temperature, and dynamic viscosity. For example:

```

julia> using ISAData

julia> ρ, P, T, μ = ISAdata(10000)

(0.4136571526878796, 26510.092578167572, 223.25492665430897, 1.461852633009453e-5)

```

where all quantities are in SI units.

`ISAdata` also supports the `Quantity` type provided by the [Unitful](https://github.com/PainterQubits/Unitful.jl) package. For example:

```

julia> using Unitful

julia> ρ, P, T, μ = ISAdata(10u"km")

(0.4136571526878796 kg m^-3, 26510.092578167572 Pa, 223.25492665430897 K, 1.461852633009453e-5 Pa s)

```

Here, output values are also of the type `Quantity`, and this provides the flexibility to convert quantities into different units:

```

julia> P |> u"lbf/ft^2"

553.6747950560401 lbf ft^-2

```