TY - JOUR TI - Introducing an optimal pressure ratio for aircraft design and investigating the effect of nozzle efficiency on the jet engine’s performance AU - SIYAHI, H. AU - SIYAHI, M. AU - FALLAH, M. AU - MOHAMMADI, Z. JO - Journal of Thermal Engineering PY - 2026 VL - 12 SP - 182 EP - 191 DO - 10.14744/thermal.0001072 ER -