Scholarlink

Testing of store separation involves risk and could result in fatal accidents. It also involves a huge testing cost. The traditional use of flight tests and wind tunnel testing required a very long testing time. With the development in computational fluid dynamics (CFD), it has become easier to simulate their separation. The coupling of six DOF equations with the Navier–Stokes (N-S) equations is needed to establish this. The force and moments on a store can be calculated using CFD applied to the pylon, wing, and store geometry. The purpose of this project is to use software Cradle to validate the store separation trajectory using the Eglin test model. This work also presents detailed attention to the ejector force profile. The transonic Mach number for which the simulation is performed is 0.95. The software Cradle’s scFLOW code is used to solve the Reynolds-averaged Navier–Stokes (RANS) equation in couple with the six degree of freedom equation. The overset meshing technique is employed. The simulation results in good agreement with the linear and angular displacement of the store.

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Prediction of Store Separation Trajectories of the Eglin Test Model Using Cradle CFD

  • 会议论文

  • 发表日期：

    2025年

查看全文
  • R. Ganesh Pawar,
  • Nuza Nigar,
  • T. Praphul,
  • Karthik Sundarraj

摘要

Testing of store separation involves risk and could result in fatal accidents. It also involves a huge testing cost. The traditional use of flight tests and wind tunnel testing required a very long testing time. With the development in computational fluid dynamics (CFD), it has become easier to simulate their separation. The coupling of six DOF equations with the Navier–Stokes (N-S) equations is needed to establish this. The force and moments on a store can be calculated using CFD applied to the pylon, wing, and store geometry. The purpose of this project is to use software Cradle to validate the store separation trajectory using the Eglin test model. This work also presents detailed attention to the ejector force profile. The transonic Mach number for which the simulation is performed is 0.95. The software Cradle’s scFLOW code is used to solve the Reynolds-averaged Navier–Stokes (RANS) equation in couple with the six degree of freedom equation. The overset meshing technique is employed. The simulation results in good agreement with the linear and angular displacement of the store.