How is the Shape factor for laminar flow viscous friction calculated in Regenerator pipe (G) in Stirling Simscape model.
In the model’s parameter script it has various properties for the regenerator including reynold’s number. i know how reynold’s number is caluclated but i cant understand how the assumingly conductive shape factor is calculated and why is it put into Shape factor for laminar flow viscous friction tab in pipe block
regenerator.geometry.length = geometry.displacer_piston.length – 2*crank_wheel.slidercrank_disp.crank_radius;
regenerator.geometry.area = A;
regenerator.geometry.hydraulic_diam = 4*A/P;
regenerator.fric_therm.length_add = 0.01*regenerator.geometry.length;
regenerator.fric_therm.roughness = 15e-6; %[m]
regenerator.fric_therm.Re_lam = 2000;
regenerator.fric_therm.Re_tur = 4000;
regenerator.fric_therm.shape_factor = 64;
regenerator.fric_therm.Nu_lam = 3.66;In the model’s parameter script it has various properties for the regenerator including reynold’s number. i know how reynold’s number is caluclated but i cant understand how the assumingly conductive shape factor is calculated and why is it put into Shape factor for laminar flow viscous friction tab in pipe block
regenerator.geometry.length = geometry.displacer_piston.length – 2*crank_wheel.slidercrank_disp.crank_radius;
regenerator.geometry.area = A;
regenerator.geometry.hydraulic_diam = 4*A/P;
regenerator.fric_therm.length_add = 0.01*regenerator.geometry.length;
regenerator.fric_therm.roughness = 15e-6; %[m]
regenerator.fric_therm.Re_lam = 2000;
regenerator.fric_therm.Re_tur = 4000;
regenerator.fric_therm.shape_factor = 64;
regenerator.fric_therm.Nu_lam = 3.66; In the model’s parameter script it has various properties for the regenerator including reynold’s number. i know how reynold’s number is caluclated but i cant understand how the assumingly conductive shape factor is calculated and why is it put into Shape factor for laminar flow viscous friction tab in pipe block
regenerator.geometry.length = geometry.displacer_piston.length – 2*crank_wheel.slidercrank_disp.crank_radius;
regenerator.geometry.area = A;
regenerator.geometry.hydraulic_diam = 4*A/P;
regenerator.fric_therm.length_add = 0.01*regenerator.geometry.length;
regenerator.fric_therm.roughness = 15e-6; %[m]
regenerator.fric_therm.Re_lam = 2000;
regenerator.fric_therm.Re_tur = 4000;
regenerator.fric_therm.shape_factor = 64;
regenerator.fric_therm.Nu_lam = 3.66; simscape MATLAB Answers — New Questions