OpenOceanModels
@openoceanmodels.bsky.social
Making oceanographic modeling accessible for education 🌊 | Free resources for exploring ocean processes. Promoted by @fjmachin.bsky.social at #ULPGC
https://github.com/fjmachin/OpenOceanModels/
www.oceanofisica.ulpgc.es
https://github.com/fjmachin/OpenOceanModels/
www.oceanofisica.ulpgc.es
Next, we’ll explore what happens when nonlinear advection interacts with other forces. Stay tuned.
#NavierStokes #FluidDynamics #NonlinearAdvection #Oceanography #OpenOceanModels
#NavierStokes #FluidDynamics #NonlinearAdvection #Oceanography #OpenOceanModels
October 26, 2025 at 8:33 PM
Next, we’ll explore what happens when nonlinear advection interacts with other forces. Stay tuned.
#NavierStokes #FluidDynamics #NonlinearAdvection #Oceanography #OpenOceanModels
#NavierStokes #FluidDynamics #NonlinearAdvection #Oceanography #OpenOceanModels
Exercise #9. Nonlinear Advection: When Velocity Deforms Itself
YouTube video by OpenOceanModels
www.youtube.com
October 26, 2025 at 8:33 PM
This is pure nonlinear dynamics in action.
No net momentum is created—just redistributed through self-advection.
No net momentum is created—just redistributed through self-advection.
October 26, 2025 at 8:33 PM
This is pure nonlinear dynamics in action.
No net momentum is created—just redistributed through self-advection.
No net momentum is created—just redistributed through self-advection.
We start from rest—no viscosity, no pressure gradient, no Coriolis force. Just a sharp velocity front.
The result?
The front deforms: faster regions overtake slower ones, turning a step into a ramp.
The result?
The front deforms: faster regions overtake slower ones, turning a step into a ramp.
October 26, 2025 at 8:33 PM
We start from rest—no viscosity, no pressure gradient, no Coriolis force. Just a sharp velocity front.
The result?
The front deforms: faster regions overtake slower ones, turning a step into a ramp.
The result?
The front deforms: faster regions overtake slower ones, turning a step into a ramp.
6/
This is entry #8 in the OpenOceanModels series, where we isolate individual terms from Navier–Stokes to better understand geophysical flows.
#OpenOceanModels #NavierStokes #FluidDynamics #Viscosity #OceanModeling #Python #NumericalSimulation
This is entry #8 in the OpenOceanModels series, where we isolate individual terms from Navier–Stokes to better understand geophysical flows.
#OpenOceanModels #NavierStokes #FluidDynamics #Viscosity #OceanModeling #Python #NumericalSimulation
June 29, 2025 at 9:42 AM
6/
This is entry #8 in the OpenOceanModels series, where we isolate individual terms from Navier–Stokes to better understand geophysical flows.
#OpenOceanModels #NavierStokes #FluidDynamics #Viscosity #OceanModeling #Python #NumericalSimulation
This is entry #8 in the OpenOceanModels series, where we isolate individual terms from Navier–Stokes to better understand geophysical flows.
#OpenOceanModels #NavierStokes #FluidDynamics #Viscosity #OceanModeling #Python #NumericalSimulation
June 29, 2025 at 9:42 AM
4/
🔬 A clean setup to understand how viscosity operates in a fluid.
📽️ Watch the full animation:
www.youtube.com/watch?v=BA4j...
🔬 A clean setup to understand how viscosity operates in a fluid.
📽️ Watch the full animation:
www.youtube.com/watch?v=BA4j...
June 29, 2025 at 9:42 AM
4/
🔬 A clean setup to understand how viscosity operates in a fluid.
📽️ Watch the full animation:
www.youtube.com/watch?v=BA4j...
🔬 A clean setup to understand how viscosity operates in a fluid.
📽️ Watch the full animation:
www.youtube.com/watch?v=BA4j...
3/
The higher the curvature of velocity, the stronger the diffusion.
That’s why the center of the Gaussian decays first and fastest.
The higher the curvature of velocity, the stronger the diffusion.
That’s why the center of the Gaussian decays first and fastest.
June 29, 2025 at 9:42 AM
3/
The higher the curvature of velocity, the stronger the diffusion.
That’s why the center of the Gaussian decays first and fastest.
The higher the curvature of velocity, the stronger the diffusion.
That’s why the center of the Gaussian decays first and fastest.
2/
We start with a Gaussian velocity pulse and watch it evolve.
No wave, no drift.
Just smoothing.
Just spreading.
This is momentum diffusion in its purest form.
We start with a Gaussian velocity pulse and watch it evolve.
No wave, no drift.
Just smoothing.
Just spreading.
This is momentum diffusion in its purest form.
June 29, 2025 at 9:42 AM
2/
We start with a Gaussian velocity pulse and watch it evolve.
No wave, no drift.
Just smoothing.
Just spreading.
This is momentum diffusion in its purest form.
We start with a Gaussian velocity pulse and watch it evolve.
No wave, no drift.
Just smoothing.
Just spreading.
This is momentum diffusion in its purest form.
💻 Code (Python):
bit.ly/OOM_acoustic...
🎥 Full simulation:
www.youtube.com/watch?v=1aJa...
#OpenOceanModels #NavierStokes #Acoustics #Sound #FluidDynamics #Oceanography #Python
bit.ly/OOM_acoustic...
🎥 Full simulation:
www.youtube.com/watch?v=1aJa...
#OpenOceanModels #NavierStokes #Acoustics #Sound #FluidDynamics #Oceanography #Python
Exercise #7. Acoustic Wave: Pressure-Driven Acceleration in Navier–Stokes Equations
YouTube video by OpenOceanModels
www.youtube.com
May 24, 2025 at 7:39 AM
💻 Code (Python):
bit.ly/OOM_acoustic...
🎥 Full simulation:
www.youtube.com/watch?v=1aJa...
#OpenOceanModels #NavierStokes #Acoustics #Sound #FluidDynamics #Oceanography #Python
bit.ly/OOM_acoustic...
🎥 Full simulation:
www.youtube.com/watch?v=1aJa...
#OpenOceanModels #NavierStokes #Acoustics #Sound #FluidDynamics #Oceanography #Python
🌬 In the atmosphere, this mechanism is central.
🌊 In the ocean, it’s usually negligible — which is why many models filter it out.
But conceptually?
It’s a clean, beautiful example of how pressure alone can create motion.
🌊 In the ocean, it’s usually negligible — which is why many models filter it out.
But conceptually?
It’s a clean, beautiful example of how pressure alone can create motion.
May 24, 2025 at 7:39 AM
🌬 In the atmosphere, this mechanism is central.
🌊 In the ocean, it’s usually negligible — which is why many models filter it out.
But conceptually?
It’s a clean, beautiful example of how pressure alone can create motion.
🌊 In the ocean, it’s usually negligible — which is why many models filter it out.
But conceptually?
It’s a clean, beautiful example of how pressure alone can create motion.
In this setup:
✖ No Coriolis
✖ No viscosity
✖ No advection
Just pressure pushing fluid parcels and generating motion.
✖ No Coriolis
✖ No viscosity
✖ No advection
Just pressure pushing fluid parcels and generating motion.
May 24, 2025 at 7:39 AM
In this setup:
✖ No Coriolis
✖ No viscosity
✖ No advection
Just pressure pushing fluid parcels and generating motion.
✖ No Coriolis
✖ No viscosity
✖ No advection
Just pressure pushing fluid parcels and generating motion.
By focusing only on how pressure drives motion, we recover the classical wave equation.
This governs how sound waves propagate in air — or any compressible medium.
This governs how sound waves propagate in air — or any compressible medium.
May 24, 2025 at 7:39 AM
By focusing only on how pressure drives motion, we recover the classical wave equation.
This governs how sound waves propagate in air — or any compressible medium.
This governs how sound waves propagate in air — or any compressible medium.
6/6 🔜 Next episodes: we'll progressively add other terms (pressure, viscosity, etc.) to build a deeper intuition of ocean & atmospheric fluid dynamics.
#OpenOceanModels #Oceanography #FluidDynamics #InertialOscillation #Science
#OpenOceanModels #Oceanography #FluidDynamics #InertialOscillation #Science
April 26, 2025 at 4:56 PM
6/6 🔜 Next episodes: we'll progressively add other terms (pressure, viscosity, etc.) to build a deeper intuition of ocean & atmospheric fluid dynamics.
#OpenOceanModels #Oceanography #FluidDynamics #InertialOscillation #Science
#OpenOceanModels #Oceanography #FluidDynamics #InertialOscillation #Science
5/6 💻 Want the code? Find it here:
bit.ly/OOM_inertial...
bit.ly/OOM_inertial...
April 26, 2025 at 4:56 PM
5/6 💻 Want the code? Find it here:
bit.ly/OOM_inertial...
bit.ly/OOM_inertial...
4/6 🎥 See inertial oscillations in action:
youtu.be/Vw8OAoujJm0
youtu.be/Vw8OAoujJm0
Exercise #6. Inertial Oscillations: Isolating Terms in Navier–Stokes Equations
YouTube video by OpenOceanModels
youtu.be
April 26, 2025 at 4:56 PM
4/6 🎥 See inertial oscillations in action:
youtu.be/Vw8OAoujJm0
youtu.be/Vw8OAoujJm0
3/6 🌀 In this episode, we focus on just the time derivative and the Coriolis term. The resulting motion? Inertial oscillations—fluid parcels moving in circular paths due solely to Earth's rotation.
April 26, 2025 at 4:56 PM
3/6 🌀 In this episode, we focus on just the time derivative and the Coriolis term. The resulting motion? Inertial oscillations—fluid parcels moving in circular paths due solely to Earth's rotation.
2/6 💡 By simplifying! We isolate terms in the equations to see what happens when only specific forces act on fluid parcels.
April 26, 2025 at 4:56 PM
2/6 💡 By simplifying! We isolate terms in the equations to see what happens when only specific forces act on fluid parcels.
Exercise #5. Coastal Kelvin Waves: Ocean's Hidden Rhythm
YouTube video by OpenOceanModels
youtu.be
March 21, 2025 at 4:23 PM
(6/7) Dive deeper, explore the code, and learn more here 👉 bit.ly/coastal_kelv...
March 21, 2025 at 4:23 PM
(6/7) Dive deeper, explore the code, and learn more here 👉 bit.ly/coastal_kelv...