packagePartialWallFriction

Partial wall friction characteristic (base package of all wall friction characteristics)

Extends from Modelica.Icons.Package (Icon for standard packages).

Information

Parameters

TypeNameDefaultDescription
Booleanuse_mutrue= true, if mu_a/mu_b are used in function, otherwise value is not used
Booleanuse_roughnesstrue= true, if roughness is used in function, otherwise value is not used
Booleanuse_dp_smalltrue= true, if dp_small is used in function, otherwise value is not used
Booleanuse_m_flow_smalltrue= true, if m_flow_small is used in function, otherwise value is not used
Booleandp_is_zerofalse= true, if no wall friction is present, i.e., dp = 0 (function massFlowRate_dp() cannot be used)
Booleanuse_Re_turbulenttrue= true, if Re_turbulent input is used in function, otherwise value is not used

Contents

NameDescription
massFlowRate_dpReturn mass flow rate m_flow as function of pressure loss dp, i.e., m_flow = f(dp), due to wall friction
massFlowRate_dp_staticHeadReturn mass flow rate m_flow as function of pressure loss dp, i.e., m_flow = f(dp), due to wall friction and static head
pressureLoss_m_flowReturn pressure loss dp as function of mass flow rate m_flow, i.e., dp = f(m_flow), due to wall friction
pressureLoss_m_flow_staticHeadReturn pressure loss dp as function of mass flow rate m_flow, i.e., dp = f(m_flow), due to wall friction and static head