Uploaded February 2019 | Updated September 2026, 1 day ago

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#ANSYS #Rocket #Propulsion #Fluent #Thrust #CFD

Relevant Videos:

ANSYS CFD Rocket Nozzle Tutorial: youtube.com/watch?v=oY_3_c0rDiw&t
How a Rocket Engine Works (Part 1): youtube.com/watch?v=3zagXTc4hBk&t
How a Rocket Engine Works (Part 2): youtube.com/watch?v=dpwpzUkR3QY&t
Creating a Structured Mesh in ANSYS: youtube.com/watch?v=Lx_kjZiKREk&t

TIMESTAMPS:

Design Problem / Hand Calculation: 1:29
CFD Simulation Verification: 5:22
Exporting Values from CFD Post: 7:30
Calculating Thrust with Microsoft Excel: 9:10

Many of you requested a video on how to verify a CFD simulation as well as calculate thrust in a rocket engine either from CFD simulation or from hand calculations. This video covers both steps in full detail. Hope it helps!

The hand calculation requires some basic knowledge of compressible flow and isentropic flow relations, however this information can be easily found online. Some suitable resources are:
grc.nasa.gov/www/k-12/airplane/isentrop.html
grc.nasa.gov/www/k-12/airplane/atmosmet.html
grc.nasa.gov/www/k-12/airplane/nozzle.html

This video covers the following topics:

1) Using CFD Post to export data (pressure, temperature, velocity etc.)
2) Verifying a rocket engine internal compressible flowpath (shocks, slip line, flow boundary, overexpansion and underexpansion)
3) Boundary Layer effects in high speed flows
4) Area Mach Relation
5) Isentropic Flow Equations and using them for the Thrust Hand Calculation

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youtube.com/user/vinayak678

Thanks for watching!

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