Abstract
When solid fuel particles are heated, injection of pyrolysis gas occurs. This study calculated drag and lift acting on a heated particle in a uniform flow field. OpenFOAM-2.3.1 was used for the calculation. A rigid sphere was placed in the center of a rectangular parallelepiped calculation domain. The calculation domain was divided into 24373 meshes or 198342 meshes. Velocity of surface outflow changed from 0 to velocity same as the mainstream. Temperature of the particle changed in the range of 300-800 K. A Reynolds number was changed by changing the kinematic viscosity. Validity of a calculation method to obtain drag was examined from the calculation result of drag acting on a particle with uniform outflow from the surface. It was revealed that drag and lift increased with increase in temperature. Friction lift markedly changed.
