On Flame Morphologies and Stabilities of NH 3 /Air Premixed Flames in a Dual-Swirl Gas Turbine Model Combustor: A Comparative Study of NH 3 and CH 4 as Pilot Fuel. - Lian, Tianyou; Zhang, Yi; Bin, Shiyu; Chen, Siyu; Jiang, Jianbai; Shi, Xiaoxiang; Li, Yuyang (Applied Sciences (2076-3417), 2026)