Provide `t_min` and `t_max` for flux injection (#2842)

* Implement injection orthogal to plane

* Generalize momentum distribution for flux injection

* [pre-commit.ci] auto fixes from pre-commit.com hooks

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* Revert "[pre-commit.ci] auto fixes from pre-commit.com hooks"

This reverts commit b0cd1891771a4c49c14abb7cb9df7374cee4458c.

* Revert "Generalize momentum distribution for flux injection"

This reverts commit 0a22b1d8fa68a3a5705d8f4824f757b6dee497f0.

* Rotate momentum initialization

* Correct flux number when the direction is normal to plane

* Update distribution of particles within a cell

* Clean-up injection code

* Add more documentation

* Add more comments

* Handle 1D case

* Only do the rotation for Gaussian flux profile

* Fix compilation error

* Correct compilation for GPU

* Start adding automated test

* Correct sign of velocity

* Update to add continuous injection

* Finalize test

* Correct processing of flux_normal_axis

* Add checksum

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* Fix bug

* Update script

* Implement maximum injection time

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* Add parameter tmin

* Make parameter optional ; update documentation

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Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

1 files changed, 9 insertions, 3 deletions

diff --git a/Source/Particles/PhysicalParticleContainer.cpp b/Source/Particles/PhysicalParticleContainer.cpp
index 27d94a5f1..1ee12b769 100644
--- a/Source/Particles/PhysicalParticleContainer.cpp
+++ b/Source/Particles/PhysicalParticleContainer.cpp
@@ -2518,10 +2518,16 @@ PhysicalParticleContainer::ContinuousInjection (const RealBox& injection_box)
 /* \brief Inject a flux of particles during the simulation
  */
 void
-PhysicalParticleContainer::ContinuousFluxInjection (amrex::Real dt)
+PhysicalParticleContainer::ContinuousFluxInjection (amrex::Real t, amrex::Real dt)
 {
-    if (plasma_injector->surface_flux) {
-        AddPlasmaFlux(dt);
+    if (plasma_injector->surface_flux){
+        // Check the optional parameters for start and stop of injection
+        if ( ((plasma_injector->flux_tmin<0) || (t>=plasma_injector->flux_tmin)) &&
+             ((plasma_injector->flux_tmax<0) || (t< plasma_injector->flux_tmax)) ){
+
+            AddPlasmaFlux(dt);
+
+        }
     }
 }