modelTransportDelay
Extends from Interfaces.SISOFlow.
Information
Delays the temperature and massFraction, not pressure, since pressure differences propagate with speed of sound, and since delaying only steady state pressure p not inertial pressure r might lead to undesirable behavior.
Note that this component uses the spatialDistribution operator, that has some artefacts (see Fig. 1) for high and low non-dimensional speeds v (possibly due to inerpolation or extrapolation of the function). Therefore minimum and maximum speed in the non-dimensional coordinate x (inlet @ x=0, outlet @ x=1) is limited. The default limits are [0.01, 50], so the delay is limited by default to [0.02s, 100s]. This limit can be adjusted in the advanced parameters tab.
Fig. 1: artefacts of the TransportDelay
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| SI.Length | l | Length | |
| SI.Radius | r | Radius | |
| Boolean | d1l | displayParameters and displayLength | displayLength at position 1 |
| Boolean | d1r | displayParameters and displayRadius and not d1l | displayRadius at position 1 |
| Boolean | d2r | displayParameters and displayRadius and not d1r | displayRadius at position 2 |
| Medium.ThermodynamicState | state_0 | Medium.setState_phX(Medium.p_default, Medium.h_default, Medium.X_default[1:Medium.nXi]) | Default state |
| Medium.MassFraction[Medium.nXi] | Xi_0 | Medium.massFraction(state_0) | Default mass fractions |
| SI.SpecificVolume | v_0 | 1/Medium.density(state_0) | Default specific volume |
| Advanced | |||
| Medium.Density | rho_min | dropOfCommons.rho_min | Minimum density |
| Real | v_min | 0.01 | Minimum nondimensional speed |
| Real | v_max | 50 | Maximum nondimensional speed |
| Layout › Display parameters | |||
| Boolean | displayLength | true | = true, if length l is displayed |
| Boolean | displayRadius | true | = true, if radius r is displayed |
Components
| Type | Name | Default | Description |
|---|---|---|---|
| Real | x | Relative position s/l | |
| Real | v | der(x) | Relative speed v/l |