SPH modeling of natural convection around a heated horizontal cylinder: A comparison with experiments

Abstract

g Gravitational acceleration, m s −2 . c Sound speed, m s −1 .x Position vector, m. t Time, s.x Horizontal coordinate, m. y Vertical coordinate, m. ν Kinematic viscosity, m 2 s −1 . η Shear viscosity, kg mSmoothing length, mm. ∆t Time step, s. N Total number of particles. n Number of neighboring particles. a, b Particle indices. ρ r Reference density, kg m −3 . T r Reference temperature, K. T s Cylindrical source temperature, K. T w Cell wall temperature, • C. v s Fluid velocity at the surface of the heat source, m s −1 . v w Fluid velocity at the cell walls, m s −1 . 0 Reference index.