Unsteady CFD Studies for Gust Modeling in Store Separation


 Aircraft and different store configurations must be certified before a flight. There is small but finite probability of aircraft being hit by gust wind at the time separation. Most separation analyses from airborne platforms do not consider phenomena because complexity inadequate knowledge its behavior. A dedicated task group was recently created to understand gust-related in safety. Of various cases, vertical most severe can cause instability leading collision. The situation compounded long heavy due large projected area. No test procedures exist for simulation or practical tests gust. study conducted identify procedure using MIL standard data Indian conditions. current paper studies emergency release condition where hitting ascertain safe discrete with 1-cosine shape specified length amplitude imposed inflow boundary. allowed sweep computational domain containing platform store. computed trajectory store, miss distance, angular rates presence are analysed this work an platform. Simulations also carried out determine effect highest dynamic pressure flight envelope.