Numerical Simulations on the Performance of Two-Dimensional Serpentine Nozzle: Effect of Cone Mixer Angle and Aft-Deck

The current study addresses the effect of different designs exhaust mixer and aft-deck on performance a two-dimensional convergent nozzle represented by internal external flows heat transfer process. cone angles 10°, 15°, 20°, lengths 140 mm, 280 420 mm was investigated. To address an aft-deck, flow behavior with compared to that without aft-deck. Then, aft-decks rectangular trapezoid shapes results demonstrated increasing angle resulted in decreasing high-temperature core low-temperature bypass flow. Increasing reducing velocity inside at exhausted jet, which can reduce noise generated engine. Furthermore, decreased temperature and, along infrared radiation. also illustrated presence pressure, temperature, nozzle. length size potential core. had no clear However, decrease gas On another hand, using triangle enhance jet.