Expanding Release Envelopes Into the Supersonic Regime via CFD-Driven Analysis

(U.S. Air Force graphic/Corey Parrish, Source: https://www.af.mil/News/Photos/igphoto/2000105179/)
(U.S. Air Force graphic/Corey Parrish, Source: https://www.af.mil/News/Photos/igphoto/2000105179/)

Presented: February 28, 2024 12:00 pm
Presented by: Chris Lipford, Rafael Perez

The Air Force Seek Eagle Office (AFSEO) is dedicated to store-aircraft compatibility and responsible for recommending release envelope limits that permit safe and acceptable store separation, thus delivering new capabilities to the Warfighter. The term “store” refers to objects that can be carried and potentially released in flight: bombs, missiles, fuel tanks, etc. Release envelope limits are established 6-degrees of freedom (DOF) simulations traditionally fed by data gathered via supersonic wind tunnel tests. These tests can be extremely expensive to run and often require years of lead time to schedule and acquire test assets when supporting new programs.

To assess its potential as a new, quicker, and cheaper method to acquire this data, AFSEO is using computational fluid dynamics (CFD) to generate the data that will be used to analyze the envelope expansion for the Guided Bomb Unit 31 released from the bay of the F-35A.

This webinar will provide an overview of that effort, covering the following topics:

  • A Brief Overview of AFSEO
  • The “What’s” and “Why’s” of Store Separation Analysis
  • Our CFD Models and Methods
  • CFD Model Validation
  • Generated CFD Data
  • Analysis & Simulation Results

This webinar presentation contains CUI and is therefore limited to government and contractors only.

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