SIMILAR SOLUTIONS OF THE LAMINAR BOUNDARY-LAYER EQUATIONS WITH VARIABLE FLUID PROPERTIES

摘要: Abstract : Certain numerical solutions to the laminar boundary-layer similarity equations are presented which illustrate effects of Prandtl number, viscosity-temperature variation, mass transfer, wall temperature, pressure gradient, and hypersonic parameter sigma on structure boundary layer derivatives velocity (shear force) total enthalpy at wall. The results show that common simplifications (such as number = 1, viscosity proportional zero gradient) often lead errors 20 50 per cent in predicted heat skin friction, displacement thickness. shear gradient shown depend form relation, sigma. Results for high surface mass-injection rates stagnation point indicate does not vanish case a flat plate.