# \#aerospace **URL:** https://discourse.julialang.org/tag/aerospace/642.md [Latest](https://discourse.julialang.org/latest.md) · [Categories](https://discourse.julialang.org/categories.md) · [Tags](https://discourse.julialang.org/tags.md) --- ## [Improved CFD solver?](https://discourse.julialang.org/t/improved-cfd-solver/135082)
**Author:** [@ufechner7](https://discourse.julialang.org/u/ufechner7)\ **Replies:** 24\ **Last updated:** [June 14, 2026, 6:28pm UTC](https://discourse.julialang.org/t/improved-cfd-solver/135082 "2026-06-14T18:28:49Z")
While there are a few CFD solvers in Julia, like ViscousFlow.jl and WaterLily.jl, the field of usage is somewhat limited: As far as I understand, WaterLily works well only for low Reynolds numbers. Is there anybody else … --- ## [\[ANN\] Epicycle.jl Initial Release - Space Mission Design and Trajectory Optimization](https://discourse.julialang.org/t/ann-epicycle-jl-initial-release-space-mission-design-and-trajectory-optimization/135024)
**Author:** [@stevenhughes](https://discourse.julialang.org/u/stevenhughes)\ **Replies:** 3\ **Last updated:** [February 14, 2026, 12:58am UTC](https://discourse.julialang.org/t/ann-epicycle-jl-initial-release-space-mission-design-and-trajectory-optimization/135024 "2026-02-14T00:58:15Z")
Epicycle is an integrated application for spacecraft trajectory design, optimization, and analysis. Leveraging Julia’s combination of high performance and intuitive syntax, this initial release delivers a modular ecosyst… --- ## [Changing struct fields to a different sub-type during run time](https://discourse.julialang.org/t/changing-struct-fields-to-a-different-sub-type-during-run-time/132346)
**Author:** [@stevenhughes](https://discourse.julialang.org/u/stevenhughes)\ **Replies:** 19\ **Last updated:** [September 20, 2025, 6:06pm UTC](https://discourse.julialang.org/t/changing-struct-fields-to-a-different-sub-type-during-run-time/132346 "2025-09-20T18:06:27Z")
Hello everyone, I am working on an aerospace system and as I am developing more complex use cases, I need to change fields on structs to a new type during a simulation. For example, when a spacecraft leaves the Earth s… --- ## [\[ANN\] VortexStepMethod.jl Aerodynamic models of 3D wings using the Vortex Step Method](https://discourse.julialang.org/t/ann-vortexstepmethod-jl-aerodynamic-models-of-3d-wings-using-the-vortex-step-method/126442)
**Author:** [@Bart\_van\_de\_Lint](https://discourse.julialang.org/u/Bart_van_de_Lint)\ **Replies:** 4\ **Last updated:** [March 1, 2025, 1:50am UTC](https://discourse.julialang.org/t/ann-vortexstepmethod-jl-aerodynamic-models-of-3d-wings-using-the-vortex-step-method/126442 "2025-03-01T01:50:17Z")
The Vortex Step Method (VSM) is an enhanced lifting line method that improves upon the classic approach by solving the circulation system at the three-quarter chord position, among the most important details. This adjust… --- ## [Linear parameter varying control (LPV control)](https://discourse.julialang.org/t/linear-parameter-varying-control-lpv-control/121840)
**Author:** [@ufechner7](https://discourse.julialang.org/u/ufechner7)\ **Replies:** 8\ **Last updated:** [October 28, 2024, 9:14am UTC](https://discourse.julialang.org/t/linear-parameter-varying-control-lpv-control/121840 "2024-10-28T09:14:30Z")
I am trying to implement an LPV controller based on GitHub - JuliaControl/DiscretePIDs.jl: Discrete-time PID controllers in Julia The idea is easy: Use a controller for heading/ course with an inner and an outer loop. T… --- ## [How to calculate roll, pitch and yaw?](https://discourse.julialang.org/t/how-to-calculate-roll-pitch-and-yaw/121183)
**Author:** [@ufechner7](https://discourse.julialang.org/u/ufechner7)\ **Replies:** 20\ **Last updated:** [October 21, 2024, 4:41pm UTC](https://discourse.julialang.org/t/how-to-calculate-roll-pitch-and-yaw/121183 "2024-10-21T16:41:43Z")
I am trying to calculate the orientation of a wing, expressed as roll, pitch and yaw angle based on the three unit vectors, that form the kite reference frame. All coordinates are in ENU (East, North, Up) reference fram… --- ## [How can I implement the TRIAD algorithm in Julia](https://discourse.julialang.org/t/how-can-i-implement-the-triad-algorithm-in-julia/121151)
**Author:** [@ufechner7](https://discourse.julialang.org/u/ufechner7)\ **Replies:** 32\ **Last updated:** [October 11, 2024, 3:02pm UTC](https://discourse.julialang.org/t/how-can-i-implement-the-triad-algorithm-in-julia/121151 "2024-10-11T15:02:25Z")
I try to calculate the rotation matrix that needs to applied on one reference frame to match a second reference frame. I have the following code: # test calculation of the orientation using LinearAlgebra, Rotations, Sta… --- ## [\[ANN\] AstroPropagators.jl - High-Fidelity Astrodynamics Propagation](https://discourse.julialang.org/t/ann-astropropagators-jl-high-fidelity-astrodynamics-propagation/119935)
**Author:** [@anon22248738](https://discourse.julialang.org/u/anon22248738)\ **Replies:** 0\ **Last updated:** [September 27, 2024, 3:14am UTC](https://discourse.julialang.org/t/ann-astropropagators-jl-high-fidelity-astrodynamics-propagation/119935 "2024-09-27T03:14:30Z")
I’m happy to announce the first 3 packages of a high-fidelity astrodynamics simulator: AstroPropagators.jl AstroForceModels.jl AstroCoords.jl By defining the underlying dynamics model parameters, you can build a multi… --- ## [JuliaCon 2024 Astrodynamics/Aerospace Minisymposium](https://discourse.julialang.org/t/juliacon-2024-astrodynamics-aerospace-minisymposium/107176)
**Author:** [@xlxs4](https://discourse.julialang.org/u/xlxs4)\ **Replies:** 15\ **Last updated:** [January 24, 2024, 3:22pm UTC](https://discourse.julialang.org/t/juliacon-2024-astrodynamics-aerospace-minisymposium/107176 "2024-01-24T15:22:54Z")
Hi! Would anyone be interested in co-organizing a astrodynamics/aerospace minisymposium in the upcoming JuliaCon 2024? Deadline for proposals is at 15th December 2023 @Ronis\_BR @deddy @helgee @Andrea\_Pasquale @MicheleCer… --- ## [Julia to SMP2](https://discourse.julialang.org/t/julia-to-smp2/97178)
**Author:** [@xlxs4](https://discourse.julialang.org/u/xlxs4)\ **Replies:** 0\ **Last updated:** [April 6, 2023, 1:38pm UTC](https://discourse.julialang.org/t/julia-to-smp2/97178 "2023-04-06T13:38:48Z")
I’m about to start working on a space mission and part of what I’ll be doing is create models that can plug in simulator pipelines that take SMP2 as input. There’s solutions such as MOSAIC that transfers Simulink models … --- ## [Simulate life-saving drones @ Zipline](https://discourse.julialang.org/t/simulate-life-saving-drones-zipline/93961)
**Author:** [@chapulina](https://discourse.julialang.org/u/chapulina)\ **Replies:** 1\ **Last updated:** [February 5, 2023, 11:45am UTC](https://discourse.julialang.org/t/simulate-life-saving-drones-zipline/93961 "2023-02-05T11:45:50Z")
Software Engineer - Simulation South San Francisco, California ABOUT ZIPLINE Do you want to change the world? Zipline is on a mission to transform the way goods move. Our aim is to solve the world’s most urgent and c… --- ## [New Julia Package for F16 Aircraft Model](https://discourse.julialang.org/t/new-julia-package-for-f16-aircraft-model/57323)
**Author:** [@raktim](https://discourse.julialang.org/u/raktim)\ **Replies:** 12\ **Last updated:** [March 19, 2021, 4:52pm UTC](https://discourse.julialang.org/t/new-julia-package-for-f16-aircraft-model/57323 "2021-03-19T16:52:57Z")
F16Model.jl is a Julia package for a nonlinear model of the F16 aircraft. The aerodynamics included in this model come from the NASA Technical Report 1538, Simulator Study of Stall/Post-Stall Characteristics of a Fighter…