OpenLB – Open Source Lattice Boltzmann Code › Forums › on OpenLB › General Topics › Pressure Inlet › Re: Pressure Inlet January 17, 2017 at 3:19 pm #2506 robin.trunkKeymaster Hi Sumit, AnalyticalConst3D<T,T> rhoF(1) should initialize a functor rhoF with value 1. The AnalyticalF3D is rather a mother class and can not be directly initialized with a value. Best Robin