ViscousJoukowski
Education
Only for iPhone
Free · Designed for iPhone. Not verified for macOS.
iPhone
Are you interested in fluid dynamics? Viscous Joukowski simulates the flow around a Joukowski airfoil by solving the two-dimensional
incompressible Navier–Stokes equations directly on your device. For teachers, students, and curious aerodynamicists, it provides an
interactive way to explore how viscosity changes lift, drag, pressure, boundary layers, separation, and wake formation.
Watch vorticity, speed, pressure, and streamlines evolve around the airfoil. Change the angle of attack, thickness, and camber by dragging
directly on the flow field, or use precision controls. Adjust the Reynolds number to explore steady flow, separated wakes, starting
vortices, and vortex shedding. Surface-pressure curves and aerodynamic-force estimates update as the simulation develops.
The app also includes the classical analytical Joukowski potential-flow solution. Overlay it on the computed viscous pressure distribution
to see where the ideal textbook model agrees with—or departs from—the Navier–Stokes result. In the potential solution, circulation is
selected using the Kutta condition; in the viscous simulation, circulation and the wake develop dynamically from the no-slip flow.
All calculations run locally using Apple MLX and GPU-accelerated Fourier methods. No server, account, or cloud computation is required.
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The developer, ManneTroll Solutions, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Torbjorn Sjogren
- Size
- 17.3 MB
- Category
- Education
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 Torbjörn Sjögren