The heat flux in Gauss distribution heat input model employed in numerical simulation of line heating is determined by heating efficiency and heating radius that are determined by acetylene flow rate in turn.

• 摘要水火弯板数值计算所用高斯分布的热源模型中热流密度由热效率和热源半径决定，而热效率和热流密度主要取决于乙炔流量。